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The George Barley Water Prize (Everglades Foundation) has named its first winner as WETSUS Netherlands, with the NaFRAd project (Natural Flocculation Reversible Adsorption). WETSUS (European Centre of Excellence for Sustainable Water Technology) takes home the US$ 25 000 prize for the Prize Stage 1. After winning Stage 1, the Wetsus team is now preparing its submission for the second stage which requires testing and demonstrating at the laboratory lab scale.

Stage 2 of the Prize is open to organisations worldwide, whether or not they participated in Stage 1. Deadline: 15th July 2017, see below.

The WETSUS NaFRAd technology proposes a combination of flocculation with natural flocculants and reversible adsorption with high capacity iron based adsorbents. This can remove both particulate and soluble phosphorus with minimal waste generation. The phosphorus can be recovered as calcium phosphate for use in the fertiliser industry. These technologies reflect the WETSUS research themes Phosphate Recovery and Natural Flocculants.

WETSUS is a partner of the European Sustainable Phosphorus Platform, and has for example developed with ESPP a regularly updated listing of publications providing overviews and comparisons of phosphorus recovery technologies (http://www.phosphorusplatform.eu > Activities > P-recovery Technology Inventory). WETSUS also regularly provides articles for ESPP’s SCOPE Newsletter reviewing scientific publications on phosphorus recycling technologies.

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Photo: March 22, West Palm Beach, Florida: George Barley Water Prize Stage 1 winner WETSUS, represented by Prasanth Kumar , with Nathalie Olijslager-Jaarsma, Consul General of the Netherlands,  Jim King, Scotts Miracle Gro, Mary Barley, Board Member of the Everglades Foundation and Eric Eikenberg, CEO of the Everglades Foundation.

Stage 2 now open for submissions

Stage 2 of the Prize is currently open for applications from teams capable of testing their solution for two consecutive weeks processing c. 24 litres/hour (see exact specifications in application materials). Applicants will submit daily inflow and outflow samples from their technology.   A total of $80,000 will be awarded in November of this year to the top 3 teams in Stage 2. Applicants to Stage 2 need not have applied to Stage 1. The deadline to request Stage 2 application materials is 15 July 2017 and the deadline to submit applications is 31 August 2017.

The Pilot Stage, the third stage of the George Barley Water Prize, will qualify 10 teams to compete at a Pilot location in Canada in early 2018, with awards totalling $800,000. Finally, the Grand Prize will see the top 4 teams compete in Florida for the ultimate $10 million award.

15 Stage 1 finalists

Stage 1 of the George Barley Water Prize is the first milestone of the 4-year prize which will reward with US$ 10 million the most cost-effective, scalable technology that thoroughly removes and recovers phosphorus from freshwater bodies. Over 75 applicants from all over the globe submitted proposals to Stage 1 (from a total of 181 initial entries). Entries came primarily from the United States, but also from Canada, India, Belgium, Germany, Australia, China, Japan, Indonesia, Netherlands, Ireland, Sweden and Israel. The prize nominated 15 finalists for Stage 1, and these are summarised below.

George Barley Water Prize, funded by the Everglades Foundation and with support from Ontario, Xylem, Miracle Gro and Knight Foundation http://www.barleyprize.com

The 15 stage 1 finalists are as summarised below
(see also on the Prize website: go to “Entries” and search by project name)

The fifteen George Barley Water Prize Stage 1 finalists:

Technologies including phosphorus adsorbents

  • Wetsus NaFRAd (Natural Flocculation Reversible Adsorption) – winner of Stage 1 of the Prize - particulate phosphorus is captured by biodegradable bioflocculants, soluble phosphorus is captured in an adsorbent bed which can be regenerated using calcium hydroxide for recovery of calcium phosphate. Adsorption is part of the WETSUS Phosphate Recovery theme with participation of Delft University of Technology, STOWA, ICL Fertilizers, KEMIRA, Green Water Solution, water authority Brabantse Delta and Oosterhof Holman. Natural flocculants are being developed in the WETSUS Natural Flocculants theme with participation of Wageningen University Research, Pentair and Shell Global Solutions. See on YouTube and https://www.wetsus.nl/phosphate-recovery Contact See photo.

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  • Rocky Mountain Scientific APR – proposes a compound (APR1 beads – a proprietary compound) which enables phosphorus to be removed from water by adsorption/desorption. Contact
  • AquaCal AgBag – uses “biogenic oolitic aragonite”, which means a form of calcium carbonate in spherical grains produced by biological processes (this is not clarified). It is claimed that “adding aragonite into animal and plant nutrition … will mitigate the very generation of phosphorus by livestock and farming activities”. Clarifications have been requested by ESPP, because we do not understand how adding calcium carbonate can have the result that phosphorus going into one end of animals does not come out the other end (phosphorus present in animal feed comes out in manures except for the non significant and essentially non variable amount stocked in bones etc). The answer we received from the company was that this is currently undergoing testing. It is also proposed to install different types of filter bags of aragonite in field drainage or storm water collection to adsorb phosphate. It is indicated that the phosphorus-enriched calcium carbonate can then be used as a fertiliser or soil improver.

  • WAVVE Stream / University of Houston spin-off – using nano-coated polymer beads to adsorb nutrients and heavy metals, with regeneration capabilities. Website: http://wavvestream.com Contact

Biological systems

  • AquaFiber Technologies AquaLutionsTM process – lake water is pumped through a patented unit at the heart of which is a dissolved air flotation unit modified to maximize its efficiency to harvest the smallest algal cells from the lake water. The system also includes gravity pre-separation and biological polishing. Clear, clean and oxygenated water is returned to the source and blue-green algae are removed. The harvested biomass can be used to produce an organic fertiliser or converted to energy. A 14 million litres/day, 0.4 ha footprint (of which 7% for the treatment installation) site has already been tested successfully at Lake Jesup, Florida, 2009-2014. The technology is ready for roll-out and the company offers a “pay for performance” business model. www.aquafiber.com See photo.

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  • Phosphorus-hungry microbes (PIARCS) – microbes are used to remove soluble phosphorus from water and stably sequester it as polyphosphate. Advantages over conventional bio-P removal are very rapid phosphate uptake, without subsequent phosphate release. The rapid uptake means that fermenter-grown microbes can be added just prior to flocculation. The polyphosphate rich biomass can be used as organic fertiliser. Contact
  • Wetlaculture (Mitsch) – landscape-scale and mesocosm-scale models integrating wetlands for phosphorus retention with agriculture. Retained phosphorus in the wetlands is directly recycled as fertiliser to crops appropriate for temperate or subtropical region. See photo.

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High technology solutions

  • Nutrient Extraction and Recovery Devices (University of Maryland Baltimore County) – selective phosphorus uptake and recovery using ion exchange membranes and high-strength monovalent salt solutions. Contact
  • Waterway Nanoshield (University of Calgary) – phosphorus removal from livestock manure using nanoporous carbon membranes as electro-filters, to clean water and produce “mineral concentrates” of phosphorus and nitrogen which can be redistributed as a fertiliser. Contact
  • Plasma Water Reactor – University of Michigan – plasma injection into water is indicated as having the following effects: changing water chemistry (oxidation states, pH) so initiating precipitation of ions such as phosphates; electrical enhancement of coagulation; generation of ozone, UV … which break down organics. See photo.

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Iron-based phosphorus removal

  • Waterloo Biofilter EC-P System – low-energy electrochemistry releases ferrous iron into septic systems or ditch water to remove phosphorus as inert, crystalline iron phosphate minerals (vivianite). This is similar to the use of iron salts for P-removal in sewage works worldwide, but without P-rich sludge production. The process can be modified to recover iron phosphate crystals which are proposed for use as a fertilising soil amendment. www.waterloo-biofilter.com Contact See photo.

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  • P removal (University of Miami) – using riparian buffer vegetation zones, waste iron materials from foundries for phosphorus adsorption and plants (reedbed type systems) for final purification stage removing low levels of phosphorus and other pollutants. Contact

  • FIU ROAR (Florida International University) - submission from Everglades region presenting a “holistic approach”. Little technical information. Iron coated fibres used for P-removal – not defined how to dispose of or recycle these fibres after phosphorus uptake.

  • Team blueXgreen - University of Idaho – reactive filtration using iron salts, biochar (from agriculture or forestry greenwaste) and ozone. Two first generations of the technology (ferrous iron and ozone) are operating commercially (Nexom/Blue Water Technologies) with installations up to >50 million litres/day, and are participating in the UK-WIR-CIP2 trials (see ESPP eNEWS n°7). The third generation reactive filtration technology (at pilot stage, see photo) adds biochar as a catalyst and phosphorus adsorbant. This can be recycled as a slow release phosphorus fertiliser which sequesters CO2. Photo: University of Idaho N-E-W Tech™ process research trailer. See https://www.youtube.com/watch?v=xI22R6vzVdw Contact See photo.

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  • US Geological Survey (USGS Leetown) –adsorption using mine waste ochre (iron oxide based) with regeneration of the ochre using sodium hydroxide, and then precipitation of calcium phosphate for recycling. See details in “Removal of phosphorus from agricultural wastewaters using adsorption media prepared from acid mine drainage sludge,” Sibrell, et al., 2009, http://dx.doi.org/10.1016/j.watres.2009.02.010 and “Fixed bed sorption of phosphorus from wastewater using iron oxide-based media derived from acid mine drainage” Sibrell and Tucker 2013 http://dx.doi.org/10.1007/s11270-012-1262-x
    Contact See photo.

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This report of the The George Barley Prize is here available in PDF.

Newsletter about nutrient stewardship - European Sustainable Phosphorus Platform (ESPP).

Please subscribe www.phosphorusplatform.eu/Subscribe 
Link to www.phosphorusplatform.eu/eNews8
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Policy
CEN paper on standards needs for P-recycling from wastewater
EU Critical Raw Materials list reassessment
EU Tax Commissioner calls for tax shift to resources
EU to assess chemicals policy – waste interface
Weaknesses of EU soils policy
Ammonia emissions limits for livestock farms published
EU consultation on Common Agricultural Policy (CAP)
Sewage biosolids: “missing a golden opportunity”
Sewage treatment status in the EU
Media
Pharmaceuticals in the environment
Sewage sludge treatment in Europe: industry perspectives
Catalogue of operating phosphorus recovery installations
Fraunhofer IGB wins Ivan Tolpe 2017 award
Nordic bio-economy: 25 sustainability success stories
Research
Update on biochar standards and regulation
Improving phosphorus nutrient use efficiency (NUE)
Contaminants in manure treatment
Assessing sustainability of biomass and nutrient recycling
 

Policy

CEN paper on standards needs for P-recycling from wastewater

The European Committee for Standardization (CEN) has adopted recommendations concerning standardisation needs to support the development of phosphorus recycling from waste waters. The paper outlines  why phosphorus recycling is important, different recycling routes, obstacles to implementation and relevant standards activities (in particular CEN/TS 13714, CEN/TR 13097, CEN/TC 260, ISO/TC 275, ISO/TC 134 (more details SCOPE Newsletter n°112). CEN adopts 5 recommendations for standardisation in the short term: dialogue with the Circular Economy needs, mapping and analysis of existing standards, of public and private certification schemes and of legislative processes relevant to P-recovery where standards are needed, promotion of existing standards relevant to P-recycling (e.g. wastewater treatment, fertilisers, …), possible inclusion of P management in these standards areas and promotion of risk assessment and good practice. CEN also specifies 6 areas where work is needed in the medium/long term, including P-bioavailability, technical characteristics and water content of recycled products, P-flow monitoring methods, good practices, contaminant levels and mitigation.
“Phosphorus recycling from wastewater treatment processes: available technologies, applicability and standardization needs”, CEN Strategic Advisory Body on Environment (SABE), 6-pages, dated 10/11/2015, validated by CEN Technical Board, early 2017 www.phosphorusplatform.eu/regulatory

EU Critical Raw Materials list reassessment

A review of the EU Critical Raw Materials list is currently underway, contracted by the European Commission to a group of consultants led by TNO, Netherlands. ESPP has made input to the process at a closed meeting last year and in writing to non-public documents. Many of ESPP’s questions raised concerning the 2014 Critical Raw Materials System Analysis (RMSA), see SCOPE Newsletter n°109, remain valid. ESPP notes the difficulties resulting of considering “phosphate rock” rather than phosphorus (P) in all forms (organic, mineral …), but this is inherent to the RMSA methodology. ESPP has pressed that white phosphorus (P4) should also be separately assessed, because it is a vital raw material for a range of added-value chemicals and other industry sectors for which the EU is totally dependent on imports mainly from Vietnam and Kazakhstan (see SCOPE Newsletter n°123). Additionally, ESPP is trying to ensure that the RMSA for phosphate rock covers all economic sectors which are dependent on phosphorus (agricultural crops and livestock, food sector) not only direct users (fertiliser industry) and that it takes into account expected future geographical concentration of phosphate rock resources increasing demand (growing world population).

EU Tax Commissioner calls for tax shift to resources

Pierre Moscovici, EU Commissioner for taxation, has called on Member States to move forward the objective of shifting taxes from labour to the use of natural resources. Today, over half of European tax revenues weigh on jobs, and only 6% on resources and consumption (see Ex’Tax in ESPP eNews n°6). In January this year a high level group led by Mario Monti proposed carbon taxation as a source to fund the EU budget and replace Member States direct contributions. The EU’s European Semester annual country reports, published February 2017, confirm that most Member States are a long way from the objective of 10% of tax revenues from green taxes set in 2011, and the Commission recommends Member States to stop tax breaks on diesel or energy intensive industries and shift taxation burden from labour to green levies.
 “EU tax commissioner calls for green tax shift” ENDS 20/1/2017  http://www.endseurope.com/article/48312/eu-tax-commissioner-calls-for-green-tax-shift  European Semester country reports, February 2017 https://ec.europa.eu/info/publications/2017-european-semester-communication-country-reports_en European Commission “Greening the European Semester” http://ec.europa.eu/environment/integration/green_semester/index_en.htm

EU to assess chemicals policy – waste interface

The European Commission has published a Roadmap outlining how it will assess during 2017 the interface between chemicals policy and waste policy, to identify barriers to the circular economy. The Commission notes the absence of a framework to address hazardous chemicals in recycled materials, and the lack of clarity as to when a material is ‘waste’ or when a ‘secondary raw material’ incoherence in applying EU waste classification methodologies and impacts on recyclability of materials, with related difficulties in application of REACH (EU Chemical Regulation). The Commission intends to consult stakeholders, possibly launch additional studies to address specific cases and to make proposals to address issues identified.
European Commission Roadmap “Analysis of the interface between chemicals, products and waste legislation and identification of policy options” 27/1/2017 http://ec.europa.eu/smart-regulation/roadmaps/docs/plan_2016_116_cpw_en.pdf See also Technopolis report on barriers to the Circular Economy in ESPP eNews N°6.

Weaknesses of EU soils policy                                                                                                   

A report for the European Commission summarises soil protection instruments in the Member States, concluding that the absence of EU soil legislation is not effectively compensated by Member State policies. The 7th European Environment Programme mandate to the European Commission to develop a legislative proposal on soil policy is today not implemented. 671 national instruments were identified and assessed, of which around 2/3 derive from implementation of EU legislation and only 1/3 are nationally initiated. A number of EU instruments indirectly contribute to soil protection, included the Water Framework Directive and the Common Agricultural Policy (CAP). However, certain aspects are not addressed at all by European policies, including prevention of soil sealing or contaminants (addressed in water, not in soil). Future possibilities include strengthening soil standards under CAP Pillar 1 (direct payments) and Pillar 2 (Rural Development Funding), and opportunities through climate policy (soil organic carbon, improved use of nitrogen fertilisers).
“Updated Inventory and Assessment of Soil Protection Policy Instruments in EU Member States”, Ecologic Institute for European Commission DG Environment, 8 Feb. 2017 http://ec.europa.eu/environment/soil/pdf/Soil_inventory_report.pdf

Ammonia emissions limits for livestock farms published

The European Commission has published the BAT BREF (Best Available Technologies) update for “intensive rearing of poultry or pigs”, applicable to farms with more than 40 000 poultry or 2 000 production pigs (around 20 000 farms in Europe), see SCOPE Newsletter n° 116. All new such farms must comply with the BAT specifications, and existing farms have four years to become compliant. For the first time, ammonia emissions limitations are now applicable to farms: with upper limits of 1.2 kgNH3/y for fattening pigs, 5.6 kg for farrowing sows and 0.13 kg for poultry. The European Commission has indicated that the limits will only drive a significant reduction in ammonia emissions if Member States regulators fix limits at the lower levels of the ranges fixed for each type of production. The BAT requirements also limit animal phosphorus excretion for different categories of animals (e.g. max. 5.4 kg P2O5/fattening pig/year), specifies actions to take to improve diet P efficiency (e.g. use of phytase and of inorganic phosphate feed additives), proposes manure treatment systems, etc (detail in SCOPE Newsletter n° 116).
“New EU environmental standards for large poultry and pig farms” European Commission 17 Feb 2017 and Commission Implementing Decision (EU) 2017/302 of 15 February 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the intensive rearing of poultry or pigs (notified under document C(2017) 688)

EU consultation on Common Agricultural Policy (CAP)

The European Commission has launched the preparation of the Common Agricultural Policy (CAP) after 2020 with a public consultation open to 2nd May 2017. Key discussions will concern the “greening” of the CAP, such as the percentage of land area to be set aside as EFA (Ecological Focus Areas). The Commission’s Roadmap for the CAP sets as objectives to simplify and modernise the policy and funding, in order to contribute to the Commissions ten priorities for 2014-2019 and to the Sustainable Development Goals (SDGs).
European Commission Roadmap “Communication on Modernising and Simplifying the Common Agricultural Policy” 2/2/2017 http://ec.europa.eu/smart-regulation/roadmaps/docs/2017_agri_001_cap_modernisation_en.pdf   -  EU public consultation on the Common Agricultural Policy https://ec.europa.eu/agriculture/consultations/cap-modernising/2017_en

Sewage biosolids: “missing a golden opportunity”

Arne Haarr, chair of the EurEau working group on waste water resources, says that the EU would make a mistake in excluding sewage sludge from composts and digestates in the proposed EU Fertilisers Regulation revision, as proposed in the Commission’s draft text. Mr. Haarr says that using sewage sludge would recycle phosphorus, organic carbon, nitrogen and micronutrients back to agricultural soil. Refusing sewage biosolids in the Fertilisers Regulation will drive towards incineration, which is expensive and not shown to be sustainable. Quality systems such as Sweden’s REVAQ (see SCOPE Newsletter n° 123), operated in cooperation with farmers, the food industry and food retailers, have demonstrated that confidence can be built in safety and quality of sewage sludge recycling to agriculture. Mr Haarr wants the EU to develop traceability and quality requirements in the EU Fertilisers Regulation, to facilitate and encourage sewage biosolids recycling to fertiliser products.
http://www.euractiv.com/section/sustainable-dev/opinion/using-sewage-to-make-europes-economy-truly-circular/

Sewage treatment status in the EU

The European Commission has published its 8th implementation report on urban wastewater treatment (Urban Waste Water Treatment Directive UWWT compliance). The report is based on 2012 data from 25 Member States (Italy, Poland and Hungary failed to provide useable data). The report covers more than 19 000 towns and cities > 2 000 p.e. (person equivalent) for a total of 495 million p.e. Of these, 98% of wastewater is collected and treated (in sewage works or IAS = individual or other appropriate systems). Although trends over time show improving compliance, 21% of the wastewater collected was still not adequately treated to secondary (9%) or to applicable tertiary requirements = phosphorus removal (12%). Phosphorus removal is required in eutrophication ‘Sensitive Areas’ (to date, nearly 75% of the EU territory has been so designated, because at risk of surface water eutrophication) for agglomerations > 10 000 p.e. Around 18 billion € of EU Cohesion Policy funds have been invested in sewage treatment 2007-2013. Challenges identified by the Commission include low compliance in some EU-13 accession states and phosphorus removal. Compliance for P-removal was lowest in Bulgaria, Ireland, Romania, Slovenia, Spain*. ESPP note: compliance with the UWWT Directive does not necessarily mean that sewage treatment is sufficient to comply with Water Framework Directive quality objective obligations.
* no data for Croatia, Italy, Poland, Malta, Latvia.  “Eighth Report on the Implementation Status and the Programmes for Implementation (as required by Article 17) of Council Directive 91/271/EEC concerning urban waste water treatment” COM(2016)105, 4 March 2016 http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A52016DC0105

Media

Pharmaceuticals in the environment

The HCWH (Health Care Without Harm) conference on pharmaceuticals in the environment brought together 60 participants to discuss current scientific data, national policies and industry actions. Maria Krautzberger, German Federal Environment Agency (UBA) underlined the need for more risk assessment information on pharmaceuticals in the environment, particularly veterinary pharmaceuticals. Helen Clatyon, DG Environment, recognised the Commission’s failure to deliver the pharmaceuticals strategy required (for 9/2015) by the Water Framework Directive. She indicated that a Roadmap should soon be finalised and opened to public consultation. Most of the presentations concerned pharmaceuticals in water, but agricultural application of biosolids, manures or re-used wastewater was identified as a possible contamination route of emerging concern by Sara Lockwood, Deloitte, with suggestions to define concentration limits for application, integrate into agricultural good practice and improve links with Circular Economy actions.
“Pharmaceuticals in the environment. Make ideas work”, HCWH (Health Care Without Harm) workshop, Brussels, 6 Sept. 2016. Slides and workshop summary: https://noharm-europe.org/issues/europe/pharmaceuticals-environment-workshop

Sewage sludge treatment in Europe: industry perspectives

EurEau, the European water and wastewater industry federation, has published a survey of how the industry sees sewage sludge management today and in the future. The answers, reflecting the vision of 22 national or regional water industry federations, do not necessarily correspond exactly to official statistics. The respondents indicate that more than 50% of sewage sludge is used in agriculture, green areas or landscaping (Belgium, Cyprus, Czech Republic, Estonia, Finland, France, Hungary, Italy, Luxembourg, Norway, Portugal, Slovakia, Spain, Sweden and the UK) and whereas only three countries incinerate more than 50% (Germany, Netherlands, Slovenia). Most respondents however expect incineration to increase, phosphorus recovery to increase, and agricultural use to decrease or stay unchanged. The strongest driving forces for sewage sludge treatment are identified as hazardous substances risks, energy recovery and nutrient recovery. Digestion and composting are seen as the most utilised sludge treatment methods. Based on this survey and other sources (Eurostat, 2016; EurEau, 2016; Destatis, 2016) an overview of sludge disposal routes across Europe has been developed by C. Kabe and W. Schipper, see below.

“Answers to the Sewage Sludge Questionnaire”, EurEau 4.10.2016 www.eureau.org (under Positions/Reports – direct link)  - Overview of sludge disposal routes in Europe http://p-rex.eu/uploads/media/Kabbe_Sludge_routes_Europe_and_DE.pdf

Catalogue of operating phosphorus recovery installations

Christian Kabbe has published a list of 70 sites worldwide where installations for phosphorus recovery from wastewater are operating, using different technologies: struvite or calcium phosphate precipitation, Ecophos P-recovery from ashes, Budenheim process, “slag” production, phosphoric acid recovery. Most sites identified are in the EU, with a few in Japan, the USA and Canada. C. Kabbe’s objective is to maintain this list and update it, and to add information on installation capacities. Information or update input is therefore welcome.
“Overview of phosphorus recovery from the wastewater stream facilities operating or under construction”, Feb 2017, Christian Kabbe - P-REX – Nurec4Org  http://p-rex.eu/uploads/media/Kabbe_Tech_implementation_Table_20170208.pdf Contact

Fraunhofer IGB wins Ivan Tolpe 2017 award

A global nutrient recovery technology, developed within the EU-funded research project BioEcoSim, with phosphorus, nitrogen and potassium recovery from pig manure, has been awarded the 2017 Ivan Tolpe prize for innovation in manure processing by VCM (Flemish coordination centre for manure processing). This project, proposed by Jennifer Bilbao, Fraunhofer IGB Germany, was selected from 6 projects from five countries in Europe. BioEcoSim www.bioecosim.eu (EU FP7, see SCOPE Newsletter n°108, 2014), recovers energy, ammonium sulphate, phosphate and a biochar soil amendment from manures, using a process chain including solid-liquid separation, superheated steam drying, pyrolysis, phosphate precipitation, gas permeable membrane and pelletisation (see SCOPE Newsletter n°100). A BioEcoSim pilot plant (1.2 tonnes manure / day) is currently operational at Kupferzell (Germany). Three other projects were noted as runners up: ManureEcoMine project (EU FP7, see SCOPE n°100, 2014), Nijhuis Water Technologies GENIAAL (SCOPE n°124) and Kamplan Netherlands. Kamplan’s ‘Total Circular Farm Concept’ includes a membrane bioreactor (MBR) for biological nitrogen removal, with effluent by electrodialysis for potassium recuperation and reverse osmosis.
 “German total concept for manure valorization wins Ivan Tolpe award 2017” http://www.vcm-mestverwerking.be/information/index_en.phtml?informationtreeid=439

Nordic bio-economy: 25 sustainability success stories

The Nordic Council of Ministers has published a report presenting 25 selected case studies. Selection criteria were: sustainable use of natural resources, technological innovation, environmental and societal benefits, business model innovation. Examples include BioGreenFuture (Faroe Islands), whose project is to produce fish foods from seaweed, replacing providing proteins, oils, vitamins, minerals, binders, antibiotics, antioxidants, and colourings, and using residuals as fertilisers and for bioenergy. Cultivation of 500 tonnes of seaweed plants on < 1 km2 is estimated to potentially extract 2.5 t/y of nitrogen and 0.15 t/y of phosphorus from eutrophied seawaters. Biomega, Norway, converts 36 000 t/y of fish processing waste to salmon oil, fish meal and peptides (by pre-digestion of proteins), all of human food-grade quality. Raisagro Finland are using phytase to reduce phosphorus requirements in fish diet (so reducing P discharges from fish production by 26%) and enabling the use of sustainable plant crops as fish food, rather than fish meal.
“Nordic Bioeconomy. 25 cases for sustainable change” ISBN 978-92-893-4775-4, Nordic Council of Ministers, Nordic Bioeconomy Panel and Sustania (Monday Morning) think tank, 2017 http://dx.doi.org/10.6027/ANP2016-782

Research

Update on biochar standards and regulation

An overview paper by Meyer et al. summarises current status and future perspectives for standardisation and legislation on biochars for use as fertilisers or soil amendments. The paper summarises voluntary biochar standards systems: IBI-BS International Biochar Initiative, EBC European Biochar Certificate, BQM British Biochar Quality Mandate. These standards cover aspects such as feedstock materials, organic carbon, ash content, contaminants, sampling and analysis procedures, and production control requirements.  In some cases sustainability aspects are also taken into account such as production emissions, greenhouse gases, energy efficiency, sustainability of feedstock biomass production, etc.  In terms of regulation, biochar is authorised for use in Switzerland and Italy, with detailed specifications for aspects such as production sustainability, biochar quality, contaminants and H/C-org ratio, labelling and user safety. Biochar is also authorised as a soil improver on a case-by-case basis in Austria, and charcoal is authorised in Germany. Developments under the EU Fertiliser Regulation revision (STRUBIAS process, ESPP proposed biochar criteria) and under REACH (EU chemical regulation) are discussed. A detailed table compares requirements for 40 different parameters under the different voluntary scheme, national legislations and proposals.
 “Biochar standardization and legislation harmonization”, S. Meyer et al., J. Environmental Engineering and Landscape Management 2017 http://dx.doi.org/10.3846/16486897.2016.1254640

Improving phosphorus nutrient use efficiency (NUE)

A presentation at the European Parliament summarises approaches to improving phosphate NUE (nutrient use efficiency). The authors consider that the use efficiency of today’s mineral fertilisers is low in all soils, down to 20% in calcareous soils, despite their water solubility. Techniques summarised as potentially improving NUE include development of soil mycorrhizae (symbiotic fungi with plant roots), enclosing of fertiliser particles in membranes whose pores close at low temperatures (nutrients are only released at temperatures where plants can use them), associating mineral fertilisers with organic matter and organic forms of phosphorus, targeted application (placing fertiliser near seed or plant root zone) and precision nutrient application as a function of real-time crop status and nutrient need assessment. They note that recycled fertiliser products often offer higher NUE  because they are slow-release (e.g. struvite) or combine organic and mineral materials. The authors underline that both use of recycled nutrient products and improved NUE can contribute to reduce cadmium input to soils from mineral fertilisers.
 “Plant nutrition: new agronomic approaches and Circular Economy, towards a strong reduction of cadmium input in soils”, European Parliament, Fertilisers Regulation Shadows meeting on fertilisers,  25 January 2017, C. Ciavatta, University of Bologna, Italy, and L. Leita, Council for Agricultural Research and Economics CREA Italy. Not published

Contaminants in manure treatment

Antibiotics were assessed in manure used as input for the ManureEcoMine nutrient recovery pilot plant. Nine antibiotics were analysed and all nine were detected in the Netherlands (pig manure), but only six in Spain (mixture of pig and cow manure). Total concentrations (%DM) were however higher in Spain. Doxycycline was the highest concentration in both countries (>1000 µg/kg) followed by Lyncomycin in Spain and Oxytetracycline in the Netherlands. These antibiotics were partially or not removed in anaerobic digestion and tended then to mostly end up in the solid fractions after solid-liquid or membrane retention. None of the nine antibiotics analysed was detectable in struvite precipitated from the liquor stream after membrane separation.
ManureEcoMine (Green fertilizer upcycling from manure: Technological, economic and environmental sustainability demonstration) report WP4 “Performance of the pilot including trace contaminants with comparison to the NL demonstration results” 30/10/2016 http://www.manureecomine.ugent.be/sites/default/files/userfiles/1/D4.2-Demonstrative%20operation%20ES%20pilot%20plant.pdf

Assessing sustainability of biomass and nutrient recycling

A report by the Netherlands National Institute for Public Health and the Environment (RIVM) examines sustainability assessment of biomass and nutrient recycling. Comparative LCAs of phosphorus recovery are summarised (Dansschutter, Afman and Korving, Remy and Jossa, Fooij). Struvite is considered as an example. The importance for recycled products of assessing possible risk from contaminants defining End-of-Waste criteria which ensure safety is emphasised. It is recommended to develop monitoring indicators, optimisation (taking into account alternative use and product scenarios) and safety assessment (covering content, origin, production process and use) based on test cases.
“Assessing sustainability of residual biomass applications. Finding the optimal solution for a circular economy”, RIVM Report 2016-0135, Quik J. et al. http://www.rivm.nl/en/Documents_and_publications/Scientific/Reports/2017/januari/Assessing_sustainability_of_residual_biomass_applications_Finding_the_optimal_solution_for_a_circular_economy
 

Events

13-15 March 2017, Tampa, Florida, Phosphates 2017 http://www.crugroup.com/events/phosphates/
 
11 April, Paris, COMIFER / ESPP P recycling in agriculture (in French) http://www.comifer.asso.fr/index.php/fr/groupes-de-travail/journees-thematiques/151-journee-phosphore-recycle-en-agriculture.html

8-10 May 2017, Ben Guérir, Morocco, SYMPHOS - Innovation and Technology in the Phosphate Industry http://www.symphos.com/index.php

 19 May 2017, Washington DC, North America Sustainable Phosphorus Alliance (SPA) stakeholder meeting https://sustainablep.asu.edu/about

12-14 June 2017, Fort Lauderdale, Florida, WEF Nutrient Symposium http://www.wef.org/Nutrients/ 

21-23 June 2017, Belfast, Ireland sustainable P meeting https://phosphorusie.wordpress.com/

3-5 July 2017, Paris, PBSi 2017 P, B & Si http://premc.org/conferences/pbsi-phosphorus-boron-silicon/

4-5 July, Manchester, UK, BIG Phosphorus conference http://www.aquaenviro.co.uk/events/conferences/

5-9 August, New York, IWA Resource Recovery conference www.irrc2017.org  


 
 


Copyright © 2017 European Sustainable Phosphorus Platform, All rights reserved.

Newsletter about nutrient stewardship - European Sustainable Phosphorus Platform (ESPP).

Please subscribe www.phosphorusplatform.eu/Subscribe 
Link to www.phosphorusplatform.eu/eNews7
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Regulation
https://www.euractiv.com/section/agriculture-food/news/eu-takes-germany-to-court-over-high-nitrate-levels/
Discussions engaged on meat and bone meal ash recycling to fertiliser in Portugal
German sludge and P-recovery ordinance moves forward
Denmark limits farm phosphorus application
ESPP input to REACH regulation evaluation
Circular economy in priorities of EU Commission Work Programme
EU takes Germany to court over Nitrates Directive failures
EU Auditors say Commission fails to address food waste
Ammonium phosphatides considered safe in food
Projects
Impacts of phosphorus recovery on sewage sludge dewatering
UPM and Yara to develop recycled fertilisers
Nurec4org project for phosphorus recycling in organic farming
Ductor nitrogen and phosphorus recovery with Fraunhofer Umsicht
Denmark’s largest biogas plant yet
Science & media
Danone: towards a circular economy in food
Quick reference on phosphorus in the body
UK water industry priorities phosphorus and pharmaceuticals
Increased diet phosphorus improves pig immune system
 

Regulation

EU Fertilisers Regulation revision

The new EU Fertilisers Regulation, which will cover recycled nutrient products, composts, digestates, biostimulants, has been examined by Council (the 28 Member States) and will be discussed in relevant committees of the European Parliament in March – April (Council’s proposals are not yet published). Council apparently wants manures to be sanitised before input into composting or anaerobic digestion (AD): this would be prohibitive, and is not justified where composting or AD ensure sanitisation (animal by-products safety end-point). ESPP has met MEPs from the different European Parliament political groups and concerned Commissions (AGRI agriculture, IMCO internal market, ENVI environment). ESPP’s messages include proposing adding a requirement for traceability for all fertilisers susceptible to contain organic contaminants (from farm producing manure or factory producing by-products through to the farm where the fertiliser is used), facilitating innovation whilst ensuring safety for future inclusion of new recycled products into the regulation annexes, avoiding additional monitoring obligations or trace-element limits if these do not increase product safety, use of safe industry by-products, interactions with REACH (chemical legislation) and clarifying wording to improve regulatory workability and information of farmers. ESPP’s proposal to include traceability for organics is proposed by the ENVI Rapporteur, Elisabetta Gardini (EPP), amendment n°119. Now is the right time to contact your regional/national Members of the European Parliament and to ask for their engagement to support and improve this proposed new regulation, which will be a major step forward for nutrient recycling in Europe.
ESPP key positions and proposed amendments online at www.phosphorusplatform.eu/regulatory For further information see ESPP eNews n°4 and ESPP SCOPE Newsletter n°120. ENVI report and proposed amendments Elisabetta Gardini http://parltrack.euwiki.org/dossier/2016/0084(COD) download source: PE-597.640

Discussions engaged on meat and bone meal ash recycling to fertiliser in Portugal

The company ITS (Industria Transformadora de Subproductos Animais) based in Coruche, Portugal, ensures rendering of slaughterhouse wastes and dead animals (Animal By-Products (ABP) Categories 1 and 2), producing animal fat for biodiesel and meat and bones meal (MBM) for destruction. A rotating-kiln ensures the incineration of the MBM at 850°C, generating 2 500 tonnes/year bottom-ash, as well as thermal energy under the form of steam, which is used for the rendering process. The ash (Meat and Bone Meal Ash MMBA) contains >15% phosphorus (of which most is soluble in NAC neutral ammonium citrate), that is nearly 400 t/y of phosphorus (P), as well as 1% potassium and 0.75% magnesium, with low levels of heavy metals or other contaminants. Discussions are underway with the national authorities to define conditions for use of the MBA as a fertiliser in agriculture. ETSA is also looking for other ways to valorise the MMBA. It is estimated that animal by-products in Europe contain a total of around 310 000 t/y of phosphorus (see SCOPE Newsletter n°122) www.etsa.pt

German sludge and P-recovery ordinance moves forward

On 18th January, the new German new sewage sludge ordinance (AbfKlärV), which will make phosphorus recovery obligatory for most of Germany’s sewage, was validated by the German Cabinet (see ESPP eNews n°6). It is now expected to pass the parliament and Federal Council before summer 2017 and enter into force in January 2018, making phosphorus recovery obligatory for larger sewage works within 12 years (> 100 000 p.e.) or 15 years (> 50 000 p.e.), under certain conditions. P-recovery will thus be required for around 500 sewage works (out of a total of 9 300 in Germany), treating around 2/3 of German sewage. At present, around 26% of German sewage sludge is spread on arable land and this is expected to be cut by half as a consequence of this sewage sludge ordinance (AbfKlärV), and also of the new fertilising ordinance (DüV) which implements the nitrates directive and which will already strongly impact sludge valorisation in Germany next year.
Information provided by Christian Kabbe, KWB. Official press release in German:
http://www.bmub.bund.de/presse/pressemitteilungen/pm/artikel/deutschland-soll-phosphor-aus-klaerschlamm-gewinnen/?tx_ttnews%5BbackPid%5D=82 English translation of German sewage sludge ordinance (EU Notification 2016/514/D (Germany) http://ec.europa.eu/growth/tools-databases/tris/en/search/?trisaction=search.detail&year=2016&num=514

Denmark limits farm phosphorus application

New regulations in Denmark, expected to enter into force in August 2017, would for the first time, specifically limit phosphorus application by farmers (including manure, organic and mineral fertilisers). To date phosphorus has been only indirectly limited by manure spreading limits, based nitrogen content. A general ceiling of 30 - 43 kgP/ha (depending on the type of fertiliser) is expected to be applied across the country, but with a lower limit of 30 kgP in 2018, independent of fertiliser type, in lake catchments concerned by River Basin Management Plans. The Danish Society for Nature Conservation is however critical of the proposal, considering that in some areas and for the first years of implementation it would allow farmers to spread more manure than today. Denmark has some 13 million pigs and around one tenth of Denmark’s fields are today saturated with phosphorus in the top soil. Phosphorus saturation can be documented down to 1m depth some places, with 1-2 tonnes/ha of surplus phosphorus stocked. Media coverage notes that a key challenge is moving the surplus phosphorus from the livestock production region of Jutland (West) to arable areas of Zealand (East Denmark).
“Farming package will increase use of phosphorus”, Ingenioren, 13/1/2017 https://ing.dk/artikel/landbrugspakken-vil-oge-brugen-fosfor-191939 and “Denmark a major culprit in rapid consumption of world phosphorus resources”, Ingenioren, 13/1/2017 https://ing.dk/artikel/danmark-storsynder-vi-opbruger-verdens-fosfor-ressourcer-med-rasende-fart-191934

ESPP input to REACH regulation evaluation

ESPP has submitted input to the EU’s public consultation on the REFIT (assessment of fitness for purpose) of the EU Chemical Regulation 1907/2006 (“REACH”). ESPP considers the Regulation as having improved information about chemicals used in Europe, so contributing to public confidence and safety. ESPP’s specific comments noted that the exemption of digestate from REACH should be confirmed; underlined the importance for the nutrient circular economy of Art. 2(7)d which specifies that sites producing “recovered substances” (e.g. struvite recovered from wastewaters) do not have to register under REACH (subject to certain conditions) but noted that clarification is needed to ensure fair sharing of costs and administration for this disposition; and noted that adaptation of REACH should be considered to facilitate registration of recovered nutrient products covered by the EU Fertilisers Regulation (after revision is completed), subject to ensuring safety. REACH is complex to apply to variable or organic substances, such as many recycled nutrient products, and partly inappropriate because it is intended to address the substance, and not impurities, which will be specified in the Fertilisers Regulation.
ESPP input to EU REACH REFIT consultation www.phosphorusplatform.eu/regulatory and EU consultation page http://ec.europa.eu/growth/tools-databases/newsroom/cf/itemdetail.cfm?item_id=8952

Circular economy in priorities of EU Commission Work Programme

The third annual Work Programme of the Juncker Commission maintains the Circular Economy in its top priorities. The Action Plan for the Circular Economy is intended to deliver on Sustainable Development Goals, with a monitoring framework for the circular economy (Autumn 2017), a legislative proposal on quality requirements for water reuse, a REFIT revision of the Drinking Water Directive and a proposal to address the interactions between chemical, product and waste legislations.
“Juncker Commission presents third annual Work Programme: Delivering a Europe that protects, empowers and defends”, EU Commission press release 26/10/2016 http://europa.eu/rapid/press-release_IP-16-3500_en.htm
 

EU takes Germany to court over Nitrates Directive failures

The European Commission has filed a 1500 page suit to the European Court of Justice against Germany for failure to adequately implement the Nitrates Directive. The Commission indicates that nitrate pollution is worsening in Germany’s ground and surface waters and in the Baltic Sea. The court action was announced in April 2016 and confirmed in November. The Commission suit indicates that Germany has failed to update its nitrates Action Programme, despite its 2012 implementation report showing that the programme is inadequate to achieve environmental objectives. The Commission indicates that crop fertilisation requirements allow a surplus of 60 kgN/ha/year, application of up to 230 kgN/ha/year is allowed on some grasslands, that some Land’s manure storage capacity requirements are insufficient and that restrictions on application on sloping land, near watercourses and on frozen land are inadequate.
Extracts of EU Commission suit to European Court of Justice, Executive Summary in German: https://netzfrauen.org/2016/11/08/gefaehrliche-guelle-eu-kom-verklagt-deutschland-wegen-verletzung-der-eu-nitrat-richtlinie-deutschland-hat-ein-nitratproblem/  “EU takes Germany to court over high nitrate levels” EurActiv 7/11/2016 https://www.euractiv.com/section/agriculture-food/news/eu-takes-germany-to-court-over-high-nitrate-levels/ “Water: Commission refers Germany to the Court of Justice of the EU over water pollution caused by nitrates”, EU press release 28/4/2016 http://europa.eu/rapid/press-release_IP-16-1453_en.htm

EU Auditors say Commission fails to address food waste

The European Court of Auditors, in a special report on combating food waste, says that the Commission’s “ambition has decreased over time” and that action taken “has been fragmented and intermittent”. The report calls for an “agreed definition of food waste and an agreed baseline, from which to target reductions”, better Commission coordination and development of an action plan, integration of food waste reduction into policies such as the Common Agricultural Policy, and to facilitate donation of food which would otherwise be wasted. The Commission launched in 2016 a food waste Platform to bring together EU bodies, experts, NGOs and food-chain actors. Some 88 million tonnes of food goes to waste annually in the EU, expected to rise to 126 million tonnes by 2030 unless action is taken.
“Speech by Commissioner Vytenis Andriukaitis at the launch meeting of the "EU Platform on Food Losses and Food Waste" 29/11/2016 http://europa.eu/rapid/press-release_SPEECH-16-4093_en.htm and EU Court of Auditors Special Report 2016-34 “Combating Food Waste: an opportunity for the EU to improve the resource-efficiency of the food supply chain” http://www.eca.europa.eu/Lists/ECADocuments/SR16_34/SR_FOOD_WASTE_EN.pdf

Ammonium phosphatides considered safe in food

EFSA (European Food Safety Agency) has re-evaluated ammonium phosphatides (E422) for safety as a food additive.  Ammonium phosphatides are molecules consisting of ammonium phosphate with one or two attached mono- or di-glycerides. They are produced by reacting phosphate and ammonium with glycerides, either synthetic or from vegetable oils, and are used as an emulsifier and stabiliser in a range of foods, including chocolate, yoghurts, soft cheese and other dairy products, coffee, cakes and biscuits. EFSA examined a significant number of animal studies of the substance. These indicate that (in rodents) 70-82% is not absorbed (found in faeces) and that most of the absorbed phosphate is incorporated rapidly into bone, muscle or the liver. Studies show low oral toxicity and no cancer, reproductive or developmental effects. EFSA concludes that use as a food additive does not raise safety concerns and that the current ADI (acceptable daily intake) does not require modification.
“Re-evaluation of ammonium phosphatides (E422) as a food additive”, EFSA Scientific Opinion adopted 27/9/2016, EFSA Journal 2016, 14(11), 4597 https://www.efsa.europa.eu/en/efsajournal/pub/4597

Projects

Impacts of phosphorus recovery on sewage sludge dewatering

The US water industry research organisation WERF has launched a 24 month project to investigate how P-recovery, anaerobic sludge digestion and biological phosphorus removal impact sewage sludge dewatering. The organisation indicates that sludge handling can represent 50% of total municipal wastewater treatment costs, with dewatering and polymer use in dewatering representing a significant part of sludge handling costs. WERF note that anaerobic sludge digestion in biological P-removal sewage works can result in significant dewatering problems and high costs, and that there is a lack of agreed knowledge on how P-recovery processes can impact this. The project with Bucknell University will include fundamental laboratory research into flocculation of bio-P digested sludges and field research particularly looking at P-recovery. WERF also has a second project to assess how P-recovery or biological P-removal can be integrated into low-energy, low-carbon nitrogen-removal processes. If you have information on this question, please contact ESPP.
WE&RF 2016: “Unintended Consequences Of Resource Recovery On Overall Plant Performance: Solving The Impacts On Dewaterability Properties (NTRY12R16)”, http://www.werf.org/c/PressReleases/2016/Unintended_Consequences_of_Resource_Recovery_on_Overall_Plant_Performance.aspx and “Water Environment Research Foundation Seeks Proposals for 2 Studies on the Impacts of Resource Recovery on Wastewater Treatment Processes” http://www.werf.org/c/PressReleases/2015/WERF_Seeks_Proposals_for_2_Studies_on_Impacts_of_Resource_Recovery_on_Wastewater_Treatment_Processes.aspx

UPM and Yara to develop recycled fertilisers

UPM (paper, biorefining and forest biomass group with 10 billion €/y turnover and production in 13 countries worldwide) and Yara (Finland phosphate rock mining and fertiliser production group) have obtained funding for 2017-2018 from Raki2, the Finland Environment Ministry nutrient recycling programme, to develop an agricultural fertiliser product from pulp and paper mill wastewater treatment sludge and sludge incineration ash. UPM’s different factories produce around 400 000 t/y of sludge including both primary sludges with a high fibre content and secondary sludges consisting mainly of bacterial biomass. The project aims to develop fertiliser and soil improver products with nutrient availability corresponding to crop needs, including balancing nutrients by combining with mineral fertilisers, so reducing risks of soil nutrient leaching and losses.
“Enhancing the utilisation degree of sludge by improving fuel value and mapping out new applications”, UPM stakeholder magazine Biofore 10/11/2016 https://www.upmbiofore.com/enhancing-the-utilisation-degree-of-sludge-by-improving-fuel-value-and-mapping-out-new-applications/ and UPM press release 10/11/2016 “UPM and Yara to co-develop recycled fertilisers” http://www.upm.com/About-us/Newsroom/Releases/Pages/UPM-and-Yara-to-co-develop-recycled-fertilisers-001-Thu-10-Nov-2016-10-03.aspx

Nurec4org project for phosphorus recycling in organic farming

The 2-year Nurec4org project launched in 2017 will support the uptake of recycled nutrient products in organic farming in Germany. It is led by Kompetenzzentrum Wasser Berlin (KWB) and Bioland (Germany’s biggest organic farmers’ association) and funded by DBU, Germany’s largest environmental foundation. Actions will include studying the market potential for recycled phosphorus products in organic farming and potential supply availability, looking at acceptance criteria for organic farmers and consumers, testing agronomic value and evaluation environment, health and life cycle factors. The objective is to provide both evidence and stakeholder consensus to support regulatory acceptance of recycled phosphates in organic agriculture.
 Contact:

Ductor nitrogen and phosphorus recovery with Fraunhofer Umsicht

A pilot installation (80 m3 fermenter) has started operation in Tuorla, Finland, and will treat 1 400 t/y of poultry manure. A 10 000 t/y chicken manure input installation started is planned in Haren, Germany, in 2016 (see ESPP eNews n°3). The Ductor technology recovers up to 60% of nitrogen (by ammonia stripping and then ammonium sulphate production) upstream of anaerobic digestion (biogas production). The digestate can be processed to a solid organic phosphate fertiliser from the digestate. Fraunhofer Umsicht will work with Ductor to evaluate the performance of the Ductor technology, including the impact on biogas production.
“Revolutionary technology by Ductor® commissioned in Tuorla, Finland”, 20/12/2016 http://www.ductor.com/revolutionary-technology-ductor-commissioned-tuorla-finland/

Denmark’s largest biogas plant yet

The biogas plant to be built near Koskro, Southern Jutland, Denmark’s most intensive livestock production region, will take over 700 000 t/y of input organic wastes, mainly cattle manure, and produce 22 million m3/y of biogas. The project brings together the Nature Energy biogas company and Sydvestjysk, a cooperative of around 100 famers. The plant benefits from exemplary architectural and landscaping design by Gottlieb Palludan.
EBA (European Biogas Association) news http://european-biogas.eu/2016/11/28/denmark-countries-largest-biogas-plant-under-construction/ and “Nature Energy og Sydvestjysk Biogas klar til rekordstort biogasanlæg ved Korskro” 11/11/2016 https://www.natureenergy.dk/corporate/presse/nyheder/spadestik_korskro

Science & media

Danone: towards a circular economy in food

Global food company, Danone, has announced a three-year partnership with the Ellen MacArthur Foundation to embed circular economy principles inside the company and to promote them widely. Danone aims for systemic change to preserve natural resources and to move to a more circular value chain. In 2016, Danone was awarded the Environment Top Performance prize by the ESG (Environmental and Social Governance) ratings agency Vigeo, top of 1 300 companies assessed. The company already has circular economy projects addressing nutrients, such as recycling acid whey by-products from yoghurt production to animal feeds, fertiliser and energy.
“Toward a circular economy in food”, Emmanuel Faber, CEO of Danone http://downtoearth.danone.com/2016/02/29/toward-a-circular-economy-in-food/

Quick reference on phosphorus in the body

A convenient summary of phosphorus biology data is provided in two pages of text plus tables, including a summary of biological functions of phosphorus, data on body P uptake and regulation, an overview of hyper- and hypophosphatemia and useful conversion indicators (mg/l – mmol – mEq/l). Note that this is a veterinary journal and some of the data (e.g. normal serum P levels) for dogs and cats may not be the same for humans.
“A Quick Reference on Phosphorus”, A. Allen-Durrance, Vet Clin Small Anim, 2016 http://dx.doi.org/10.1016/j.cvsm.2016.09.003

UK water industry priorities phosphorus and pharmaceuticals

CIP2, the UK water industry’s second Chemicals Investigation Programme (coordinated by UKWIR) is a major research and monitoring investment. The project is running from 2015 to 2020 with an estimated cost of UK£140 million for chemicals, with a priority on pharmaceuticals, and UK£50 million for phosphates. Some 600 sewage works are being sampled for 74 chemicals. AquaStrategy reports that interim results from 160 sites show a Water Framework Directive compliance risk at ≥90% of sites for five substances (three fluorinated / PFOS chemicals1, PAH2 and phosphorus as SRP3). Twenty of the 74 chemicals being studied are pharmaceuticals4. For a number of pharmaceuticals5, the interim results suggest that levels in sewage works discharge water would pose a potential risk in rivers. CIP2 also includes testing nearly 20 different technologies to reduce phosphorus discharges and 10 technologies to remove pharmaceuticals, a challenge being to find solutions which eliminate the pharmaceutical molecule rather than simply adsorbing it. AquaStrategy note that Switzerland has moved forward on pharmaceutical treatment in sewage works through a 9 CHF/year/person tax. In January 2017, a coalition of 14 NGOs called on the European Commission to take action to reduce pharmaceutical pollution of water, as is required by Directive 2013/39/EU (priority substances in water), which fixed a deadline of September 2015, deadline which has been missed. The NGO’s letter also points to pharmaceuticals in manure and soil.
1: perfluorooctane sulfonic acid and perfluorooctanoic acid. 2: indicator benzo(a)pyrene. 3: soluble reactive phosphorus. 4: including the 6 pharmaceuticals which are on the Water Framework Directive priority substance ‘Watch List’: diclofenac, estradiol (E2), ethinyl estradiol (EE2), erythromycin, clarithromycin, and azithromycin. 5: diclofenac, propranolol, clarithromycin, erythromycin, EE2, rantidine and azithromycin. “Early insights from the UK's groundbreaking sewage assessment”, AquaStrategy October 2016 https://www.aquastrategy.com/article/early-insights-uks-groundbreaking-sewage-assessment “The European Commission must fulfil their obligation to reduce pharmaceutical pollution”, NGOs’ position and letter Health Care Without Harm 19/1/2017 https://noharm-europe.org/articles/press-release/europe/european-commission-must-fulfil-their-obligation-reduce-pharmaceutical

Increased diet phosphorus improves pig immune system

A PhD thesis looks at the effects of dietary calcium phosphate levels and of fermentables on the immune system and on gut bacteria of pigs. Following a literature study, two consecutive full scale tests were carried out on 31 pigs fed for 9 weeks with a corn-soybean (higher level of fermentables) then a corn-pea diet, with for each test, groups of high and low calcium phosphate (4 or 7 %Pdm). Higher calcium phosphate and higher fermentables both led to healthier gut and lower potentially harmful gut bacteria. The higher calcium phosphate diets generally showed higher levels of positive immune function indicators. Further research is recommended concerning variations of phosphorus availability (digestibility) and the formation of different inositol phosphates.
“Impact of dietary phosphorus and fermentable substrates on the immune system and the intestinal microbiota of the pig”, C. Heyer, PhD in Agricultural Science, University of Hohenheim Germany, 2016 http://opus.uni-hohenheim.de/volltexte/2016/1301/pdf/Dissertation_Charlotte_Heyer.pdf#page=27
 

Events

13-15 March 2017, Tampa, Florida, Phosphates 2017 http://www.crugroup.com/events/phosphates/
 
Save the date 11 or 12 April, Paris, COMIFER / ESPP P recycling in agriculture (in French)

8-10 May 2017, Ben Guérir, Morocco, SYMPHOS - Innovation and Technology in the Phosphate Industry http://www.symphos.com/index.php

 
19 May 2017, Washington DC, North America Sustainable Phosphorus Alliance (SPA) stakeholder meeting https://sustainablep.asu.edu/about

12-14 June 2017, Fort Lauderdale, Florida, WEF Nutrient Symposium http://www.wef.org/Nutrients/ 

21-23 June 2017, Belfast, Ireland sustainable P meeting https://phosphorusie.wordpress.com/

3-5 July 2017, Paris, PBSi 2017 P, B & Si http://premc.org/conferences/pbsi-phosphorus-boron-silicon/

4-5 July, Manchester, UK, BIG Phosphorus conference http://www.aquaenviro.co.uk/events/conferences/

5-9 August, New York, IWA Resource Recovery conference www.irrc2017.org  
 


Copyright © 2017 European Sustainable Phosphorus Platform, All rights reserved.

ESPP has submitted input to the EU’s public consultation on the REFIT (assessment of fitness for purpose) of the EU Chemical Regulation 1907/2006 (“REACH”). ESPP considers the Regulation as having improved information about chemicals used in Europe, so contributing to public confidence and safety. ESPP’s specific comments noted that the exemption of digestate from REACH should be confirmed; underlined the importance for the nutrient circular economy of Art. 2(7)d which specifies that sites producing “recovered substances” (e.g. struvite recovered from wastewaters) do not have to register under REACH (subject to certain conditions) but noted that clarification is needed to ensure fair sharing of costs and administration for this disposition; and noted that adaptation of REACH should be considered to facilitate registration of recovered nutrient products covered by the EU Fertilisers Regulation (after revision is completed), subject to ensuring safety. REACH is complex to apply to variable or organic substances, such as many recycled nutrient products, and partly inappropriate because it is intended to address the substance, and not impurities, which will be specified in the Fertilisers Regulation.

Following the legislative developments in Switzerland and Germany, Austria is now also opting for madatory P recovery from municipal sewage sludge. The draft Federal Waste Plan 2017 (Bundes-Abfallwirtschaftsplan) includes a ban of direct land application or composting for sewage sludge generated at Wastewater Treatment Plants with capacities of 20,000 p.e. or above within a transition phase of 10 yeras. (see chapter 7.5 in the waste plan part 1, link below). Alternatively, these WWTP will have to recover the P from sludge onsite targeting P contents below 20 g P / kg dry solids or have to deliver their sludge to sludge mono-incinerators. The P is then to be reovered from the sewage sludge ashes obtained. This regulation will cover 90% of the P contained in the Austrian municipal wastewater.

Link to Austrian Ministry of the Environment and draft waste plan:
https://www.bmlfuw.gv.at/greentec/bundes-abfallwirtschaftsplan/BAWP2017.html

On January 18th, the new sewage sludge ordinance has passed the German cabinet. It is supposed to pass the parliament and Federal Council of Germany before summer. Intended dates are 31 March for the parliament and 12 May for the council. After more than 10 years of revision and heated debates, the new draft of the German sewage sludge ordinance was sent by the Federal Ministry of Environment (BMUB) to the European Commission (EC) for notification at September 26th 2016. The notification to EC is a typical procedure for new Member State regulations according to directive 2015/1535/EU. The EC has approved without remarks by 27 Dec 2016. The content cannot be changed afterwards except for minor adaptions.

Once approved by both chambers, the new sewage sludge ordinance may enter into force by 1st January 2018. This step will make phosphorus (P) recovery from sewage sludge obligatory for all German wastewater treatment plants (WWTP) larger than 50,000 person equivalents (p.e.), equal to ~500 WWTP out of ~9300 WWTP. They will have to recover the phosphorus if the sludge contains more than 2% phosphorus /DS (dry solids) or have to incinerate the sludge in mono-incinerators. Land application of sludge will only be allowed for WWTP < 50,000 p.e. These ~500 WWTP represent roughly 66% of the total phosphorus removed from German wastewater and transferred into the sludge.

The WWTP above 100,000 p.e. will have to fulfill the new phosphorus recovery requirements by 2029, after a 12 years transition period. The WWTP of 50,000 to 100,000 p.e. get three additional years for implementation. All effected WWTP have to develop phosphorus recovery concepts by 2023.

Currently, 26% of sewage sludge is spread on arable land. This fraction is expected to half as a consequence of the new fertilising ordinance (DüV) and sewage sludge ordinance (AbfKlärV) entering into force. The fertilising ordinance is the German implementation of the nitrates directive and will strongly affect sludge disposal and valorisation in Germany already next year.

Official press release in German:
http://www.bmub.bund.de/presse/pressemitteilungen/pm/artikel/deutschland-soll-phosphor-aus-klaerschlamm-gewinnen/?tx_ttnews%5BbackPid%5D=82

Newsletter about nutrient stewardship - European Sustainable Phosphorus Platform (ESPP).

Please subscribe www.phosphorusplatform.eu/Subscribe 
Link to www.phosphorusplatform.eu/eNews6
Download as PDF

Success story
Thermal hydrolysis biogas and fertiliser from food waste, Oslo
Regulation and policy
EU to further restrict dental mercury
Circular Economy standard proposed
Netherlands approves Circular Economy 2050 strategy
France, Spain face European Court actions for failure to treat sewage
German proposed sludge ordinance in English
Germany ammonia emissions taken to court
Policy for the circular economy
Germany UBA proposes reduced VAT on resource efficient products
Regulatory barriers to circular economy wealth creation
Report confirms potential of tax shift from labour to consumption
Media
ICL Fertilisers: the world must consume less raw materials
Aqua Strategy: P recovery update
Toilet Board Coalition: Circular Economy could accelerate global sanitation
Science
Healthy diet, diet P and food sustainability
Phosphorus losses from mains water leakages
Phosphorus recovery potential, Sofia, Bulgaria
Risk assessment and fertiliser regulations
Cost assessment of struvite recovery from digestate
 

Success story

Thermal hydrolysis biogas and fertiliser from food waste, Oslo

The Romerike Biogas Plant (RBA) operated by the Oslo urban authority since 2012, produces over 100 000 t/y fertiliser from food waste digestate.  The plant takes in separately sorted and collected household food waste and commercial and industry food waste. It includes optical and mechanical sorting (magnetic separator, bio-separator, sieve, sifters) , shredding, thermos hydrolysis (THP) at 130°C – 4 bars to  render organics better available for digestion, then biogas production (anaerobic digestion at 38°C for c. 24 days). Biogas is compressed and used to fuel the city’s buses (1 kg food waste gives 0.13 l diesel equivalent). The digestate is solid liquid separated and distributed as liquid fertiliser (90 000 t/y of N10 P2 K6 at c. 4.5% DM or 15% after concentration) and solid fertiliser (15 000 t/y at 28% DM).
Nils Finn Lumholdt, City of Oslo: “AD in Oslo- Production of Liquid Biomethane from Sorted Household Waste”, AD Europe 2014 https://asiakas.kotisivukone.com/files/biolaitosyhdistys.palvelee.fi/23__nils_finn_lumholdt.pdf and “Green Energy from Waste” DAKOFA 24/8/2016 http://www.mita.lt/uploads/documents/food_waste_recycling.pdf

Regulation and policy

EU to further restrict dental mercury

The EU has agreed a text to ban mercury in dental amalgam for children under 15, pregnant and breastfeeding women. This will enable continuing reductions in mercury levels in sewage sludge, of which amalgam is the largest source, because of daily wear of mercury amalgam in people’s teeth. This is significant for safe nutrient reuse through biosolids spreading or through P-recovery. The text has been agreed by the three EU institutions (Commission, Parliament, Council of Member States). It also requires Member States to set a national plant for reducing amalgam and for the Commission to report (by 2020) on the feasibility of a complete phase out of mercury amalgam by 2030. Environmental NGO European Environment Bureau (EEB) welcomed the agreement as placing Europe as a world leader in implementation of the 2013 Minamata International Convention on mercury, but regretted that the complete ban on mercury amalgam is not yet confirmed. The European water industry EurEau has also taken position for a ban on mercury amalgam, considering that mercury separators at dental clinics only partly reduce mercury losses. EurEau estimate that dental mercury going to sewage from teeth reduces by 20% the part of sewage biosolids which can be recycled to farmland, thus resulting in an annual additional cost of around 128 million € per year (EU) for incineration costs, as well as additional CO2 emissions due to the use of fossil fuels to support sludge incineration.
EurEau position 13/6/2016: http://eureauwaternews.tumblr.com/post/151926522998/eureau-welcomes-european-parliament-vote-on-dental EEB position 8/12/2016 http://www.eeb.org/index.cfm/news-events/news/eeb-welcomes-strengthening-of-eu-mercury-laws/

Circular Economy standard proposed

The British Standards Institute (BSI) has published online for comment a draft standard for implementing the circular economy in organisations, the first such standard to be proposed. For the purpose of this standard, the following definition of Circular Economy is proposed “systemic approach to the design of business models, enabling the sustainable management of resources in products and services”. The introduction notes that unprecedented uncertainty is expected over coming decades, implying price volatility for raw materials, and proposes the circular economy as a systemic approach to business redesign to address this. Relations between circular economy, resource efficiency, zero waste, bioeconomy and lean thinking are discussed. The proposed standard includes a detailed section of definitions, an approach to optimising value creation through circularity, an overview of circular economy business models and implementation tools including an eight-stage framework and a needs-based navigation tool.
British Standards Institute draft “Framework for implementing the principles of the circular economy in organizations – Guide” BS8001 https://drafts.bsigroup.com/Home/Details/59265

Netherlands approves Circular Economy 2050 strategy

On 5th October, The Netherlands national Circular Economy programme to 2050 was presented to Parliament. The programme fixes an interim objective of 50% reduction in raw materials use (minerals, metals, fossil fuels) by 2030, and an objective of 100% sustainable, non polluting use of raw materials by 2050. ‘Biomass and food’ is one of the five priority areas identified in the programme. Under this priority, the programme indicates commitment to the Netherlands Nutrient Platform and to European action through ESPP (European Sustainable Phosphorus Platform). Actions specified to address the ‘Biomass and food’ priority include reducing food waste, sustainable agri- food- and biomass value chains, development of alternative protein sources, recycling of food industry residues, soil quality and increasing soil carbon, precision farming and closing the loop for nutrients.
“A Circular Economy in the Netherlands by 2050” Government-wide Programme for a Circular Economy, Netherlands Minister for Environment and Minister for Economic Affairs, 72 pages, launched 14th September 2016 https://www.government.nl/documents/policy-notes/2016/09/14/a-circular-economy-in-the-netherlands-by-2050

France, Spain face European Court actions for failure to treat sewage

France has been condemned by the European Court of Justice for failure to adequately treat sewage (absence of secondary treatment) for 11 small agglomerations with 2 000 to 15 000 person equivalents. These 11 towns are those for which sewage was still not being adequately treated at the date of the European Commission’s legal procedure (8 of these are since considered to be treated by the Commission), out of some 551 agglomerations initially cited by the European Commission’s action launched against France in 2009. The Commission has also engaged European Court of Justice (ECJ) proceedings against Spain for failure to implement adequate waste water treatment in 17 cities (1.4 million population in total), out of 37 for which Spain was already condemned by the ECJ in 2011. This concerns failure to ensure secondary treatment sufficient to avoid risks to health from pollution of water bodies. The Commission is requesting a 46.5 million € fine on Spain, plus 171 000 € daily fine until conformity is ensured.
Judgement of the European Court of Justice, 23rd November 2016, failure of France to implement the Urban Waste Water Directive 91/271/CEE Art. 4, paragraphs 1 & 3, secondary treatment or equivalent http://curia.europa.eu/juris/document/document.jsf?text=&docid=185543&pageIndex=0&doclang=FR&mode=req&dir=&occ=first&part=1&cid=2213788 European Commission “November infringements package: key decisions” 17th November 2016 “SPAIN faces fines for not complying with judgment from 2011 over poor waste water collection and treatment” http://europa.eu/rapid/press-release_MEMO-16-3644_en.htm

German proposed sludge ordinance in English

As indicated in ESPP eNews n°5, Germany has notified to Europe its proposed new sewage sludge ordinance (AbfKlärV), which will make phosphorus recovery obligatory for most of Germany’s sewage. The text has now been translated and is published by the EC in English. The proposal, which is expected to enter into force in 2018, will ban land use of sewage sludge from all sewage works > 50 000 p.e. (over 100 000 p.e. if the sludge has <2%P DM) and will update and harmonise contaminant limits, monitoring obligations and procedures (including quality assurance) where sludge is used in agriculture. For larger sewage works, phosphorus recovery will be obligatory (11 years after entry into force) wherever sludge contains >2% phosphorus (dry matter DM) and in this case at least 50% of the P must be recovered (and sludge P reduced to <2%)* if operating in the sewage works, or at least 80% of the P from incineration ash or other carbon residues (see p75). Implementation of the proposed ordinance is expected to cost 94-119 million €/year.
* ESPP note: if this wording is not modified this will effectively exclude struvite recovery as currently implemented. This could be resolved by changing “and” to “or” here.
European Commission Notification Detail Ordinance reorganising sewage sludge recovery (Sewage Sludge Ordinance)
Notification Number: 2016/514/D (Germany) http://ec.europa.eu/growth/tools-databases/tris/en/search/?trisaction=search.detail&year=2016&num=514

Germany ammonia emissions taken to court

Two environmental NGOs (ClientEarth and Deutsche Umwelthilfe) have engaged a court case against the state of Germany (at Cologne administrative court) for failure to respect Germany’s ammonia emissions limit under the revised National Emissions Ceilings Directive which entered into force on 31st December 2016. This requires Germany to reduce its ammonia emissions by 5% by 2020 and 29% by 2030 (vs. 2005 levels). The NGOs state that Germany has exceeded its 2010 target under the previous NECD Directive by 17-22% from 2010 – 2015 and that its national air pollution plans as defined at present will not ensure compliance with the new NECD. Ammonia air pollution generates fine particles in the atmosphere and particulate air pollution is estimated to cause nearly 50 000 premature deaths per year in Germany. Over 90% of ammonia emissions come from agriculture, in particular manure management, so that pressure to reduce emissions will incite to nitrogen recovery installation.
“Legal action against German government for ammonia breaches”, ClientEarth, 4th January 2017 http://www.clientearth.org/legal-action-german-government-ammonia-breaches/

Policy for the circular economy

Germany UBA proposes reduced VAT on resource efficient products

The German environment agency UBA has proposed that EU tax regulations should be modified to allow reduced-rate VAT (Value Added Tax) on resource efficient products, as well on services such as repairs. Modification to EU VAT rules requires unanimous decision of all Member States. UBA has also called for binding environmental and social standards throughout the value chain with mandatory certification. UBA also proposes specifying minimum recycled product contents in certain products.
“Resource-efficient products should be cheaper” http://www.umweltbundesamt.de/en/press/pressinformation/resource-efficient-products-should-be-cheaper Umwelbundesamt Germany 11th November 2016 and resources report www.umweltbundesamt.de/resourcesreport2016

Regulatory barriers to circular economy wealth creation

In a report for the European Commission (DG GROW), 10 case studies are presented where removing regulatory barriers could facilitate development of the circular economy, including two relevant to nutrients: nutrient recycling from manure and food waste in the hospitality sector. For food waste, VAT regulations tax food donations and strict Member State implementation of the 2004 EU Regulation on Food Hygiene result in throwing food away. Regulation and VAT changes could result in savings of 4 billion €/year for the hospitality sector. For manure nutrients, the report identifies five regulatory barriers to recycling:
  • EU Fertilisers Regulation does not at present cover organic fertilisers (NOTE: this is being addressed through the EU Fertiliser Regulation revision)
  • The Animal By-Products Regulation does not take into account the sanitisation ensured by various manure processing methods (NOTE: this should be addressed by the EU Fertilisers Regulation revision, but is not at present
  • Waste Framework Directive labels anaerobic digestion as “recovery” (energy production) instead of recycling (NOTE: so “forgetting” the nutrient value of digestate and the potential for nitrogen recovery by ammonia stripping)
  • Absence of End-of-Waste criteria for manure derived products (NOTE: as above, this should be addressed by the EU Fertiliser Regulation revision)
  • REACH (EU chemical regulation) application to manure derivatives (for which this Regulation may not be adapted)
Other non-regulatory barriers to manure nutrient recycling identified by the report are:
  • Benefits of organic fertilisers not recognised
  • Inconsistent quality of manure derived products
  • Manure processing is more expensive than field spreading or than mineral fertilisers
  • Legal uncertainty around manure processing discourages investments
The report estimates that if 20% of EU manure is currently wasted, rather than being reused in agriculture, then this represents a loss of over 1.1 billion €/year for phosphorus and nitrogen fertiliser value. The report also notes that manure processing is labour intensive, with a “reasonable” job creation potential of 200 000 full-time equivalents across the EU.
Technolopolis, Wuppertal Institute, Thinkstep and Fraunhofer ISI” Regulatory barriers for the Circular Economy. Lessons from ten case studies”13th July 2016 http://ec.europa.eu/DocsRoom/documents/19742 and European Commission DG GROW website http://ec.europa.eu/growth/tools-databases/newsroom/cf/itemdetail.cfm?item_id=8986&lang=en&tpa_id=1040

Report confirms potential of tax shift from labour to consumption

A new report for the Ex’tax project, by Cambridge Econometrics, Deloitte, EY, KPMG and Price Waterhouse shows that transferring tax burden from labour to consumption would increase GDP by +2% and employment by +3% in Europe, and deliver 5 – 9% reductions in energy use, water use and carbon emissions. At present, around 50% of Europe’s national tax revenues come from taxation of labour, compared to just 6% from taxes on resources and consumption. The Ex’tax proposal shifts taxation from the payroll (social contributions and income tax), to carbon, water and electricity (bulk users not households), and possibly also other green taxes on e.g. metals and minerals, travel and traffic, waste, building materials, air pollution emissions, toxic chemicals, plastics, biodiversity, as well as a small increase in VAT (but zero VAT for maintenance and repair) with tax credits for job creation and for circular economy innovation.
“New era. New plan. Europe. A fiscal strategy for an inclusive, circular economy”, published 15/12/2016, Ex’tax project 2016 http://www.neweranewplan.com/

Media

ICL Fertilisers: the world must consume less raw materials

In an interview published with Springer Professional, Kees Langeveld, vice president of business development of the international chemical company Israel Chemicals Ltd. (ICL) explains that phosphorus recycling is part of the company’s engagement for environmental and social change, and the circular economy, and also contributes to maintaining ICL’s production factories in The Netherlands and Germany. As well as ICL’s use of struvite in fertiliser production, Mr Langeveld cites ICL’s project, using the RecoPhos technology, to recover elemental P4 (white phosphorus, a key raw material for flame retardants, lubricants, and other applications) from sewage sludge ash, and production of phosphoric acid using ashes and hydrochloric acid.
Springer Professional “Less raw materials must be extracted”, 12th January 2017 https://www.springerprofessional.de/recycling/nachhaltigkeit/-weniger-neue-rohstoffe-muessen-gewonnen-werden-/11926228

Aqua Strategy: P recovery update

The water sector professional magazine Aqua Strategy published in its December issue a summary of current developments in phosphorus recycling technology installation worldwide, covering current installations and underway projects using technologies of Ostara (Pearl), NuReSys, Colsen (Anphos), Véolia (Struvia) and Mephrec (Nuremburg pilot). More detailed presentations of Outotec’s work to develop a recovered calcined phosphate product (improved AshDec process) adapted to farmers needs, and of the Budenheim ExtraPhos process (P extraction from sewage sludge at ambient temperature using CO2, Mainz-Mombach pilot).
“Aqua Strategy review: Process progress with sewage phosphate recovery” cover story, December 2016 https://www.aquastrategy.com/article/aqua-strategy-review-process-progress-sewage-phosphate-recovery and feature article “Budenheim pilots its process to meet German wastewater phosphate recovery requirements” https://www.aquastrategy.com/article/budenheim-pilots-its-process-meet-german-wastewater-phosphate-recovery-requirements

Toilet Board Coalition: Circular Economy could accelerate global sanitation

The Toilet Board Coalition, a platform of hygiene brand companies, NGOs and development organisations, has published a study concluding that the circular economy could speed up implementation of global sanitation. The study concludes that valorising resources derived from toilet wastewater can create a self-sustaining sanitation business, accelerating sanitation investment, reducing need for public funding and creating business opportunities for both multinationals and innovative SMEs – but not without risk. Resources recoverable from toilets are identified as (today) energy, agricultural products [compost, organic fertilisers and soil conditioners], water and (potentially) innovative products/raw materials and health data. Challenges to address are seen as contaminants and pathogens (safety), public perception (“yuk factor”), smell, security/ quality of supply, maintenance, development of new products, fit with existing instruments and operators and failure to monetarise externalities.
“Sanitation in the Circular Economy” Transformation to a commercially valuable, self-sustaining, biological system, November 2016 https://www.fastcoexist.com/3066577/applying-the-circular-economy-to-toilets-could-speed-up-global-sanitation

Science

Healthy diet, diet P and food sustainability

A systematic review (Nelson et al. 2016) identified 23 studies relating diet quality to environmental impact (for developed countries). Analysis of this data concludes that dietary patterns which are higher in plant-based foods and lower in animal-based (especially red meat) and lower in energy content, are both healthier and have a lower environmental impact. Meier & Christen 2013 is the only study cited as specifically addressing phosphorus, showing lower P use with healthier, more plant-based diets. Another study (Peltner & Thiele 2017) looks at nutrients in the Healthy Eating Index – 2010 concluding that densities (nutrient content/energy content) of nutrients (P, Ca, K, Mg, Fe and others) are higher in the high quality diet (67 mgP/100 kcal) than the low quality diet (53  mgP).
“Alignment of Healthy Dietary Patterns and Environmental Sustainability: A Systematic Review” M. Nelson et al., Adv Nutr 2016, 7 1005–25, http://dx.doi.org/10.3945/an.116.012567
“Association between the Healthy Eating Index-2010 and nutrient and energy densities of German households’ food purchases”, J. Peltner & S. Thiele, European J.  Public Health, 2017, http://dx.doi.org/10.1093/eurpub/ckw247

Phosphorus losses from mains water leakages

A new study suggests that phosphorus losses from mains (drinking) water leakages is nearly one quarter of P discharged from sewage works in the Thames river catchment, England. The study estimates phosphorus losses from mains water pipes at 90 tP/y, compared to 380 tP/y from sewage works and 560 tP/y from agriculture. Phosphates are dosed to drinking water in the UK to prevent lead and copper dissolving into water and posing health problems – this is not the case in most of the rest of Europe. A previous study (Ascott et al. 2016, summarised in SCOPE Newsletter n°119) estimated phosphorus leakage out of mains water supply pipes at 1 200 tP/y, total England and Wales, of which around 70% into surface waters.
“Mainswater leakage: Implications for phosphorus source apportionment and policy responses in catchments”, D. Gooddy, M. Ascott et al., Science of the Total Environment 2016 http://dx.doi.org/10.1016/j.scitotenv.2016.11.038

Phosphorus recovery potential, Sofia, Bulgaria

Phosphorus recycling potential of Sofia, Bulgaria, waste water treatment plant is assessed. This is Bulgaria’s biggest sewage works, serving a population of over 1.3 million (14% of Bulgaria’s sewage), p.e. not specified. Bulgaria’s 2014-2020 National Sludge Management Strategy anticipates an increase in sewage sludge production to nearly 125 000 tonnes DM per year, with upgrading of sewage works to respect EU water legislation. Currently around half of Bulgaria’s sludge goes to landfill or temporary storage, both of which must be stopped, and the remainder farmland or soil restoration. Phosphorus in the Sofia sewage works inflow is c. 2.9 mgPtotal/l and 0.9 mgPtotal/l in discharge. The authors estimate that around 70% of inflow phosphorus could thus potentially be recovered from either sludge or sludge incineration ash, that is 170-250 tP/year.
“Phosphorus recovery potential in Sofia WWTP in view of the national sludge management strategy, I. Ribarova et al., Resources, Conservation and Recycling 116 (2017) 152–159 http://dx.doi.org/10.1016/j.resconrec.2016.10.003

Risk assessment and fertiliser regulations

A first-approach risk assessment is presented of contaminants in mineral fertilisers and a number of possible recycled nutrient products (including sewage sludge, recovered struvite and sewage sludge ash derived products), covering risk to humans (food via crops, farmers), to soil organisms and to surface water. It is concluded that cadmium and zinc may be of concern for some endpoints: possible cadmium risk to surface waters on acidic soil, zinc risk to soil organisms from sewage sludges or sludge incineration ash products. Chromium and copper may also potentially be significant contaminants, comparative to atmospheric deposition, in some recycled fertiliser products. Struvite shows the lowest contaminant levels and no identified risks. For the persistent organic contaminants considered (dioxins, poly aromatic hydrocarbons) recycled nutrient product input is low compared to atmospheric deposition and does not contribute significantly to risk. Risk to humans are considered low for all fertiliser materials considered (levels higher than PNEC Predicted No Effect Concentration).
“Risk Assessment and Fertilizer regulation – A valuation with respect to recycled phosphorus materials from wastewater”, F. Kraus, C. Kabbe, W. Seis, Berlin 17 Nov. 2016, paper prepared within the EU-FP7 Project P-REX and updated in 2016. http://p-rex.eu/uploads/media/Kraus__Kabbe__Seis._Risk_Assessment_and_Fertilizer_regulation_-_A_valuation_with_respect_to_recycled_phosphorus_materials_from_wastewater..pdf An enhanced version with better consideration of these uncertainties and a quantitative sensitivity analysis is planned for mid-2018

Cost assessment of struvite recovery from digestate

COWI, at the Nordic Phosphorus Conference, October 2016, presented a preliminary study of costs of possible struvite recovery from a biogas plant treating sewage sludge and sorted household organic wastes (OFMSW). The Grodaland biogas plant, Norway, currently being built, will treat 89 000 t/y of municipal sewage sludge and 41 000 t/y OFMSW, that is a total of nearly 23 000 t/y dry solid content. Cost estimates, based on different struvite process supplier technologies, ranged from 13 to 18 €/kgP recovered. Cost differences were not considered pronounced, but costs for struvite recovery were around half of costs for evaporation processes (but these could also recover nitrogen and potassium). Possible operation cost savings resulting from phosphorus recovery were not considered.
Line Blytt, COWI, “Solutions and costs for public facilities, example from an evaluation of technologies for nutrient recovery at Grødaland biogas plant in Rogaland, Norway” https://dakofa.com/fileadmin/user_upload/1100_Line_Blytt_Danielsen_COWI.pdf


 
Events



Copyright © 2017 European Sustainable Phosphorus Platform, All rights reserved.

The previous European Commissioner for Science and Research and then for the Environment,

Janez Potočnik, has joined the Board of the European Sustainable Phosphorus Platform

(ESPP). Mr Potočnik has also previously been a Minister in Slovenia, and is currently Co-Chair of

UNEP International Resource Panel. He will act as an ambassador for sustainable phosphorus

resource management, particularly to national and regional governments, and to the food

industry.

 

ESPP’s General Assembly (1/12/2016, Brussels) elected the following Board:

• President: Ludwig Hermann (Outotec, a global leader in minerals and metals processing technology)

• Treasurer: Bengt Hansen (Kemira, a water treatment chemicals company)

• Secretary : Anders Nättorp (FHNW University of Applied Sciences Northwestern Switzerland)

Herman Walthaus (Netherlands Government)

Christian Kabbe (DPP German Phosphorus Platform)

Fertilizers Europe, the European fertiliser industry federation

Janez Potočnik (proposed by BSAG Baltic Sea Action Group)

 

The General Assembly fixed the following priority actions for the Platform for 2017

- The revision of the EU Fertilisers Regulation, to cover recycled nutrient products, in

particular adding struvite, biochars and ash-based products (currently not covered) and

enabling traceability to ensure safety and confidence in recycled products susceptible to

contain organic contaminants

- Refining justification for maintaining phosphorus / phosphate rock in the EU Critical Raw

Materials list

- Developing standards for secondary nutrient raw materials, to accompany recycling

- Sustainable manure management across Europe

 

Innovation in the chemicals industry

The 2016 General Assembly was followed by a thematic meeting looking at innovation and

sustainability in industrial uses of phosphorus. Sixty participants, mainly from industry, but also

from R&D and the European Commission, explored the wide range of industries in which

phosphorus chemicals are essential, including fire safety, energy storage, electronics, medical

applications, catalysts and lubricants. A number of companies, including Clariant, ICL, Magpie

Polymers, Italmatch, Prayon, ProPHOS and Remondis, presented their actions to make

phosphorus chemistry processes more sustainable.

 

Success stories presented include recycling of phosphorus (from sewage sludge, from spent

fire extinguishers), and the development of phosphorus chemicals with improved health, safety

and sustainability profiles.

 

Summary is online in SCOPE Newsletter n° 123 and slides at:
http://www.phosphorusplatform.eu/P-in-industry

The presentations of the ESPP conference on Phosphorus stewardship in industrial applications (01-12-2016) are now online under Downloads and below. The report of the conference is published as a SCOPE newsletter No. 123 article "Phosphorus in the chemicals industry".

The ESPP General Assembly 2016 was followed by a thematic meeting looking at innovation and sustainability in industrial uses of phosphorus. 60 participants, mainly from industry, but also from R&D and the European Commission, explored the wide range of industries in which phosphorus chemicals are essential, including fire safety, energy storage, electronics, medical applications, catalysts, lubricants. Several companies including Clariant, ICL, Magpie Polymers, Italmatch, Prayon, ProPHOS and Remondis, presented company actions to make phosphorus chemistry processes more sustainable. For example, their success stories cover the recycling of phosphorus from sewage sludge and from spent fire extinguishers, and to develop phosphorus chemicals with improved health, safety and sustainability profiles.

Opening: Janez Potocnik - Co-chair of the UNEP International Resource Panel and previous EU Environment Commissioner
Phosphorus: global resources perspective
Willem Schipper – Willem Schipper Consulting
Phosphorus in industry and society
Carl Szöcs – Prayon
Phosphorus recycling initiatives in a multi-sector P company
Chris Slootweg - SUSPHOS network
Circular phosphorus chemistry and knowledge transfer from one sector to another (chemistry, agriculture, industry)
Steve van Zutphen - Magpie Polymers
Metal Scavenging: using low-value phosphorus materials to make metal refining more sustainable
Alexander Maurer - ICL Fertilizers
The RECOPHOS-Process P4 from Sewage Sludge Ashes
Andreas Rak and Martin Lebek - Remondis
Clean technology for P-recycling to phosphoric acid: REMONDIS TetraPhos®
Marco Michelotti and William Grandi - ProPHOS Chemicals
Innovative solution for phosphate recovery from exhausted extinguishing powders (PhoSave Horizon2020 project)
Wolfgang Wanzke – sustainability manager Clariant
Sustainability in the Phosphorus Value Chain: P-based flame retardants and fire retarded plastics
Maria Cristina Pasi - Italmatch Chemicals, Coordinator of the TRIALKYL LIFE project
Reducing the impact of P chemistry
Tomas Turecki – European Commission DG RTD
Industry innovation and phosphorus sustainability in FP7 & H2020
Solon Mias - EU Executive Agency for Small and Medium-sized Enterprises (EASME)
LIFE Environment Water

Report and presentations are now online for the ESPP workshop Pharmaceuticals in sewage biosolids (27/10/2016). The main workshop conclusions are:

  • Incineration of sewage sludge can be an appropriate solution depending on local conditions (e.g. contaminated sludge, lack of agricultural space for spreading …) but is lower down the recycling hierarchy (energy “recovery” not recycling). Even if phosphorus is recovered from ash (to produce fertiliser or for industry applications), organic carbon, nitrogen, potassium, sulphur and micro-nutrients are lost.
  • Concerns about sludge contaminants must be taken seriously and addressed both by developing data and information to support risk assessments, and by taking upstream actions wherever possible to reduce contamination of sewage sludge. For industrial chemicals and consumer chemicals, this is possible by actions targeting users and households (reduce discharge to sewers), but for pharmaceuticals it is much more difficult.
  • Public exposure risk to organic contaminants via sewage sludge should be put into context of exposure from other routes (both the same and other organic contaminants via direct contact and in household dust, air, water). However, this does not absolve the need to address sewage sludge use in agriculture in order to inform farmers, the food industry, consumers and decision makers.
  • Veterinary pharmaceuticals and hormones are also present at significant levels in manures, and this should also be addressed, both by reductions at source where possible, and by monitoring and treatment where manure nutrients are recycled.
  • There still a need for more data regarding fate of organic contaminants, including pharmaceuticals in sewage sludge. There is more data on heavy metals, and more data on organic contaminants in water (sewage works discharge, rivers, drinking water) than in biosolids. The question is multi-faceted: contaminants in biosolids, fate in sewage treatment and in sludge treatment processes, in soils, in crops, both short and medium term presence and impacts.
  • Pharmaceuticals and other organic chemicals in sewage sludge are varied and complex, and cannot be considered as a single issue. Of the wide number of molecules, new pharmaceuticals and chemicals, breakdown products, which to monitor? Further data and understanding is needed to try to identify different families of substances which have similar behaviour, but without over-simplifying.
  • Pharmaceuticals and hormones are important challenges, because of the inherent obstacles to upstream reductions, both in sewage sludge and in animal manures.
  • More immediately however, industrial and household chemicals require monitoring and action, in particular:
    • PFOS (perfluorooctane sulfonate) and other perfluorinated chemicals, e.g. from Teflon
    • triclosan and triclocarban
    • brominated flame retardants and substitute chemicals
    • dioxins
    • PAH (poly aromatic hydrocarbons)
  • Composting is generally effective for removing many, but not all pharmaceuticals. Female hormones however are largely not degraded.
  • Removal of organic contaminants in sewage treatment systems is very variable and difficult to predict, depending on contaminant molecule chemistry, sludge properties, dewatering, treatment conditions.
  • Anaerobic digestion can break down some pharmaceuticals, but further work is needed to better understand how to improve this, including looking at sludge disintegration upstream of digesters (e.g. Cambi, Haarslev, Biothely). Further work is needed on degradation metabolites to verify if these pose issues.
  • There is potential to develop new sludge treatment process chains in order to improve pharmaceuticals removal, e.g. treatments upstream of anaerobic digestion, or modification of conditions in digesters and in the sewage works biological treatment cycles
  • Female hormones are often not degraded in sludge treatment, but this may be not of environmental or health significance. Manures either spread or going directly to soils from animals in the field often contains significant levels of such hormones.
  • Antibiotic resistance is a globally important health issue, and should be better studied for sewage biosolids application. Knowledge shows that soils can naturally adapt, because soil organisms naturally release antibiotics, so that antibiotic resistance appearing after sludge application seems to be only temporary.
  • Several studies confirm that movement of organic contaminants to groundwater is very low from sewage sludge land application. This is unsurprising, as the contaminants found in sludges are those which tend to partition to solids, and not to water.
  • Data is needed to develop robust risk assessments of agricultural use of sewage biosolids, and also of manures, taking into account fate of and possible impacts of pharmaceuticals in sewage treatment processes, sludge treatment, in soil and possibly in crops and for grazing livestock. This cannot be feasibly done for the large number of pharmaceutical molecules and other organic contaminants, so screening is needed to identify priority substances.

Newsletter about nutrient stewardship - European Sustainable Phosphorus Platform (ESPP).

Please subscribe www.phosphorusplatform.eu/Subscribe 
Link to www.phosphorusplatform.eu/eNews5
Download as PDF

Success stories
- NuReSys Appeldoorn struvite plant now operational
- Robobank selects nutrient recycling innovators

Policy and regulation
- EU Commission call for information on struvite – biochar – ashes
- German sludge P-recycling ordinance notified to Europe
- EESC Opinion on Fertilisers Regulation
- Manure management in livestock intensive regions
- Nordic Phosphorus Network announced by Nordic Council of Ministers
- European farmers’ federation position on Fertilisers Regulation
- France Nitrates Directive programme approved by Brussels

Funding opportunities
- Two new Horizon 2020 research calls on raw materials
Science & media
- Update of phosphorus Dietary Reference Intake not justified
- Calcium phosphate nano particles inhibit cancer cells
- Comparing manure management to reducing livestock numbers
- Improving digestate fertiliser performance by injection
- No risk bacterial expected from recovered struvite


Phosphorus stewardship in the chemicals industry
and new industrial applications
Thursday 1st December, Brussels

ESPP (European Sustainable Phosphorus Platform) General Assembly and thematic meeting within the First EU Raw Materials Week (EU Raw materials information & brokerage event 30th November)
Register:
Programme: www.phosphorusplatform.eu


Success stories


The NuReSys struvite recovery unit at Appeldoorn (Vallei en Veluwe water board), The Netherlands, is now operational. The NuReSys Stripper unit operates on anaerobic digester outflow liquor, upstream of sludge thickening by centrifuges. This optimises the beneficial impact objectives of improved sludge dewatering and reduced polymer consumption in dewatering, and to avoid nuisance deposit risks in sludge dewatering equipment. This is obtained by simply exhausting the magnesium present. After dewatering the effluent is lead to a NuReSys Crystalizer where MgCl2 is added to form struvite. When works engineering upstream of the unit is completed the plant in Apeldoorn will produce about 750 tonnes/year of struvite. NuReSys sell recovered struvite to the fertiliser industry, for example Timac Agro who use it after conditioning as a specialist starter fertiliser for maze, showing high performance results in field crop trials (see SCOPE Newsletter n°118).
See NuReSys success story in SCOPE Newsletter n°115.

The world’s leading food and agribusiness bank, Robobank, has nominated 10 innovative agri-food start-ups for FoodBytes! Boulder, of which three concern nutrient recycling or food loss minimisation. Biotech Services Senegal, will collect, sort, grind, sieve and process urban wastes to produce organic fertilisers, using a specific fermentation process (Biopost). FreshSurety addresses food waste for fresh produce (fruit, vegetables, but also cut flowers), with new technology based on sensors of chemical metabolites emitted to air (a high-tech equivalent of sniffing fruit to gauge its freshness) and algorithms enabling to real-time report on freshness and better manage shelf-life and consumer-delivered quality. Mad Agriculture will grow black soldier fly larvae on food waste, then convert the larvae into a protein-rich supplement for animal and fish feed, so recycling nutrients. Note: other companies already have full-scale scale black soldier fly larvae factories operational in Canada and South Africa, see SCOPE Newsletter n°118. Another of the ten selected start-ups is One Hop Kitchen producing insect-based Bolognese source, but the two projects are not linked.

Policy and regulation

In the context of the future European Fertilisers Regulation (STRUBIAS working group), the European Commission (JRC-IPTS) is calling for input of any information relevant to:
  • agronomic value; environmental and health safety; and potential market
  • recovered struvite, biochars or ashes (e.g. from sewage sludge incineration, biomass or manure combustion …)
  • use of these materials either as fertilisers or soil improvers, or as raw materials (ingredients) for production of these
The European Commission will use this information to prepare an Impact Assessment (to evaluate whether or not each of these three materials should be included into the future EU Fertiliser Regulation (as CMCs Component Material Categories) and if the impact assessment concludes positively, then draft criteria for this inclusion. All relevant information (publications, data, studies, market estimates, examples of products already placed on the market …) should be sent EU JRC as below.
Send all relevant information to by 15th November, or as soon as possible. If any information sent is company confidential (e.g. product analysis, company market data) then this should be indicated clearly on the sending email. Please send non-confidential information also in copy to because ESPP is represented in STRUBIAS.

The new German sewage sludge ordinance (AbfKlärV), which will make phosphorus recovery obligatory for most of Germany’s sewage, has been notified by Germany to the European Commission on September 26th 2016 and may enter into force in early 2018. The ordinance will make phosphorus recovery from sewage sludge obligatory for all German sewage works larger than 50,000 person equivalents (p.e.), that is, around 500 out of a total of c. 9 300 sewage works in Germany. These 500 larger sewage works represent around 2/3 of the total phosphorus removed from German wastewater and transferred into sludge. For these larger sewage works, phosphorus recovery will be obligatory if the sludge contains > 2% phosphorus (dry solids), either by P-recovery from the sludge or by mono-incineration and recovery from sewage sludge incineration ash. If P < 2%, then co-incineration will be authorized. Land application of sludge will only be allowed for sewage works < 50,000 p.e. and will have to respect the quality criteria of the new German fertilizing ordinance (DüV). Currently 29% of German sewage sludge is spread on farmland. The entry into force of these two new ordinances (AbfKlärV and DüV) is expected to be cut this by half.
See ESPP’s SCOPE Newsletter in press http://www.phosphorusplatform.eu/scope-in-print/scope-in-press/1327-german-sludge-p-recycling-ordinance-notified-to-europe and (in German) http://www.bmub.bund.de/themen/wasser-abfall-boden/abfallwirtschaft/wasser-abfallwirtschaft-download/artikel/abfklaerv-klaerschlammverordnung

The European Economic and Social Committee has adopted its ‘Opinion’ on the EU Fertilisers Regulation revision. EESC supports the objective of extending the existing regulation from only mineral fertilisers (at present) to cover organic and waste based fertilisers, subject to ensuring environmental protection, underlining that recycled fertilisers “may in the future constitute an important part of an integrated circular economy” (recalling the EESC Opinion on the Circular Economy jobs and SMEs, 2014). The need to clarify definitions of a “secondary raw material”, waste, by-products, end-of-waste are underlined, pointing to the contradictions in the current text between application to PFCs and CMCs [$4.2 of EESC Opinion]. EESC wants systems of control, labelling (present in the proposed text) and [$1.3] traceability (not present). EESC underlines [$1.9, $4.5] that municipal sewage sludge has potential and value as a raw material for organic fertiliser – whereas this is excluded in the current regulation proposal. EESC also notes [$4.8] the need to exempt from REACH recovered materials beyond compost (EESP comment: e.g. digestate see www.phosphorusplatform.eu/regulatory). EESC calls for incentives to support company investments in [$1.8, $4.10] in nutrient recycling, in particular for recycling nutrients from livestock manure.
Opinion of the EESC on the EU Fertilisers Regulation Revision, adopted 13-14 July 2016, refs. NAT/691 – EESC-2016-03054-00-01-AC-TRA (EN) 1/8, rapporteur Cillian Lohan http://www.eesc.europa.eu/?i=portal.en.nat-opinions.39587

Stakeholders and experts from six European regions with high livestock intensity (Brittany, Flanders, Netherlands, Lombardy, Catalonia and North-West Germany) met at the pig production forum organised by COOPERL (France’s biggest pig production cooperative), Rennes, Brittany, 13th September. Although production systems and environmental contexts may be very different between these regions, a number of regulatory and market trends were identified , in particular: opportunities to develop markets towards consumers who are prepared to pay higher prices for pork produced respecting animal rights and environmental criteria, phosphorus spreading limits (beyond the ‘literal’ implementation of the Nitrates Directive which limits only nitrogen), processing manure to enable production of recycled fertiliser products with involvement of new actors (contractors, farmers’ cooperatives, organic fertiliser companies) in manure processing and marketing, value of traceability to ensure user (farmer, food industry) confidence in recycled fertiliser products, reducing ammonia emissions, because of both greenhouse gas impacts and local air quality (including PM10 particles).
Summary in ESPP’s SCOPE Newsletter in press www.phosphorusplatform.eu

At the Nordic Phosphorus Conference, organised by Danish, Swedish and Norwegian waste associations (DAKOFA, Avfall Norge, Afvall Sverige), Malmö, 27-28 October, a Nordic Phosphorus Network was announced by the Nordic Council of Ministers. Michael Höysti, Secretariat of the Nordic Council of Ministers, underlined that the Nordic countries can and should take the lead in phosphorus sustainability in Europe. He indicated that the new network will provide a platform for phosphorus recycling and reuse, information exchange, and will identify challenges and define a Nordic phosphorus strategy.
A summary of the Nordic Phosphorus Conference and of the ESPP international workshop on organic contaminants in sewage biosolids organised prior to the Conference will be published shortly on the ESPP website “SCOPE Newsletter in press” www.phosphorusplatform.eu Speakers slides are available on the Nordic Phosphorus Conference website https://dakofa.com/conference/conference/programme

The EU farmers’ and agri-cooperatives’ federation COPA COGECA has published (ref. FER(16)3924) a position paper expressing concern that the revision of the EU Fertilisers Regulation, by enabling EU marked recycled products to displace existing nationally authorised fertilisers, will increase fertiliser costs and reduce the quality of products sold to farmers. The economic logic is not clear as to how opening the market to new recycled fertilisers products would lead to an increase in price of fertilisers already on the market. The federation also suggests that competition with recycled fertiliser products will make it more difficult for farmers to dispose of their own manure (under Nitrates Directive manure N application limits). COPA COGECA proposes to limit organic carbon to 1% in “inorganic fertilisers”, to not reduce cadmium limits below 60 mgCd/kgP2O5 (again because of possible cost implications); to oblige declaration of different nitrogen forms and of phosphorus solubility tests, and to impose stricter constraints on organic and organo-mineral fertilisers - composts and digestates (in order to not undermine currently existing stricter regulations in some Member States). COPA COGECA wants processed manure to be a recognised EU fertiliser ingredient (CMC11) and wants digestate to be exempt from REACH – but only for digestates produced from agricultural by-products.

France has updated its Nitrates Directive Action Programme, intended to prevent agricultural nitrate pollution of surface and ground waters in Nitrate Vulnerable Zones. France was condemned by the European Court of Justice in 2013 and 2014 (SCOPE Newsletter n°107). The updated Programme corrects points raised in the condemnation, five years after initiation of the proceedings by the European Commission in 2011: forbidden manure spreading periods, manure storage prescriptions, forbidding of spreading on frozen soils, accounting of nitrogen from livestock other than pigs and cows. However, the Government’s own Environmental Authority opinion considers that the changes are “a minima” to respond to the condemnation, include other non justified changes (e.g. use of simplified nutrient balance on pig farms) and do not appear to correspond to an “ambition to restore ecosystems perturbed by nitrates”. The Authority requests an evaluation of the impacts of the Action Programme on eutrophication, water quality, Water Framework Objectives and Natura 2000 areas.
Journal de l’Environnement 30/9/2016Arrêté soumis à consultation 2016 – Opinion of the Autorité Environnementale adopted 16/3/2015

Funding opportunities

The European Commission (EC) published on 14th October two new research funding calls within the Horizon 2020 research program Societal Challenge 5 “Climate action, Environment, Resource Efficiency and Raw Materials“. The EC concludes that the EU is highly dependent on raw materials that are crucial for a strong European industrial economy. Securing the sustainable access to raw materials, including metals, industrial minerals and construction raw materials, and particularly Critical Raw Materials (CRM), for the EU economy is of high importance. Call SC5-14-2016-2017 about “Raw materials Innovation actions” focusses on “sustainable metallurgical processes”, and “processing of lower grade and/or complex primary and/or secondary raw materials in the most sustainable ways”. The EC wants to stimulate industry to scale-up promising raw materials production technologies and to demonstrate that raw materials can be produced in an innovative and sustainable way. The objective is to make sure that (1) research and innovation end-up on the market, (2) to strengthen the competitiveness of the European raw materials industries, (3) to meet ambitious energy and climate 2030 targets and (4) to gain the trust of the EU citizens to raw materials sector. The other call SC5-15-2016-2017 about “Raw materials policy support actions” focusses on optimising collection of raw materials data in Member States. According to the EC, one of the major challenges regarding the EU knowledge base on primary and secondary mineral raw materials is the quality, harmonisation of the collected data and information sharing at the different levels within the EU. There is a need to optimise collection of data in Member States in support of the EU Knowledge Base on Raw Materials (EC Raw Materials Information System – RMIS). For both calls the first-stage deadline is 7 March 2017.
EC Horizon 2020 call SC5-14-2016-2017
http://ec.europa.eu/research/participants/portal/desktop/en/opportunities/h2020/topics/sc5-14-2016-2017.html
EC Horizon 2020 call SC5-15-2016-2017
http://ec.europa.eu/research/participants/portal/desktop/en/opportunities/h2020/topics/sc5-15-2016-2017.html

Science & media

A methodical scanning of studies concerning diet phosphorus and health concludes that there is not sufficient evidence to justify updating the US Dietary Reference Intake (DRI) which dates from 1977. The DRI takes into account both recommended minimum intakes (EAR Estimated Average Requirement and RDA Recommended Dietary Allowance) and safe maxima (TUIL Tolerable Upper Intake Level). Here, relevant publications since 1996 were assessed: 127 potential publications were identified, of which 29 were fully reviewed. Papers were rejected because either non-systematic review papers only, addressed mechanisms not outcomes, not relevant to phosphorus – health response or not concerning healthy populations. Only 15 papers were finally identified as relevant, and these do not provide indications that diet phosphorus is linked to health issues such as cardio-vascular disease, bone mineral density. The authors note that the phosphorus DRI was planned for update in 1997, which has not happened, and that this evidence scan concludes that there is insufficient new evidence to prioritise a review of the phosphorus DRI.
“Scanning for new evidence to prioritize updates to the Dietary Reference Intakes: case studies for thiamin and phosphorus”, P. Brannon et al., Am J Clin Nutr (AJCN) 2016 http://dx.doi.org/10.3945/ajcn.115.128256

High temperatures are known to transform amorphous calcium phosphates into crystalline forms with lower water solubility. Here tri calcium phosphate (= hydroxyapatite = TCP) was sintered at 700 - 1000°C then tested for inhibition in vitro of MCF-7 strain breast cancer cells. 900°C sintering of TCP produced approximately spherical nanospheres, with less agglomeration and so smaller particle size than at 700 or 1000°C. These nano calcium phosphate particles achieved 80% inhibition of breast cancer cells at 50 mg/l. A differential effect to non cancer cells may be related to higher negative charges on the cancer cells. This study confirms previous work suggesting that hydroxyapatite nano particles can inhibit cancer cell proliferation (Choi 2015, Han 2014, Meena 2012, Morgan 2001).
“Inhibitory Effect of Tricalcium Phosphate Sintered at Different Temperatures on Human Breast Cancer Cell Line MCF-7”, M. Rahmanian et al., Tehran, Iran, Multidisciplinary Cancer Investigation, January 2017, Volume 1, Issue 1 http://dx.doi.org/10.21859/mci-010112

The EU-funded (Horizon2020) TRANSrisk project is comparing two possible transition pathways to reduce the environmental impacts of livestock production in the Netherlands: reduction of livestock numbers or integrated manure management (IMM). The project indicates that livestock production represents 3% of Netherlands GDP, so that reducing livestock numbers would have considerable economic impacts. At the same time, significant action is needed to reduce agricultural environmental impacts are recognised to be needed, including greenhouse emissions, ammonia emissions and phosphates. Mature management is expected to have cost impacts for farmers, to offer the benefit of increasing renewable energy production (anaerobic digestion of manure to produce biogas), and may have some negative side-effects (e.g. reduced animal grazing time, as farmers optimise in-stable manure production to input to biogas). Livestock reduction may not have anticipated positive results if production is simply transferred to other regions of the world. Farmers, manure managers, bioenergy actors and other stakeholders are invited to contact the project to participate.
“Cows and pigs for sale!? Assessing the side-effects of low carbon transition pathways in livestock farming in the Netherlands”, Addendum JIQ Magazine vol. 22, no. 3, Oct 2016 Joint Implementation Network (JIN http://cdn.jin.ngo/) Climate & Sustainability

Short-term (2 year) field tests of digestate in Brescia, Lombardy, Italy, show that it is as effective or more effective as a nitrogen fertiliser than urea, on condition that it is soil injected not surface applied. The digestate was from a biogas plant using as inputs cattle slurry and energy crops and it was applied (surface application and soil injection, whole digestate or liquid fraction) in field trials for two growing seasons on silage maize, with comparison to no fertiliser, urea and animal slurry (both surface applied). Injected digestate gave better crop production than urea, whereas surface application gave slightly lower results. Ammonia emissions were generally slightly lower for injected digestate than for surface urea application, but were higher for surface applied digestate. This study shows that, as for animal manures, application method of digestates is very important, with soil injection offering better N fertiliser effectiveness and lower ammonia emissions.
“Short-term experiments in using digestate products as substitutes for mineral (N) fertilizer: Agronomic performance, odours, and ammonia emission impacts”, C. Riva, V. Orzi, M. Carozzi, M. Acutis, G. Boccasile, S. Lonati, F. Tambone, G. D'Imporzano, F. Adani, Science of the Total Environment 547 (2016) 206–214 http://dx.doi.org/10.1016/j.scitotenv.2015.12.156

An article by Shiba et al. indicates that two strains of Bactillus subtilus bacteria were found in struvite (magnesium ammonium phosphate) recovered from raw sewage sludge at East Rand sewage works, South Africa. The process involved extraction of P from the sludge using 1M sulphuric acid at 5%, ion exchange to separate P from ion, then struvite precipitation (at pH 9) and drying for 12 hours at 100°C. The recovered struvite was then tested for bacteria growth (petri dish culture). Bacillus subtilis strains were shown to be present, but the authors note that these bacteria exist in the general environment, as well as in human and animal gastrointestinal tracts, so that their presence may have come from laboratory working conditions not from the sewage. The authors also underline that these bacteria are in any case naturally found in humans and soil, so are not a pathogen issue, with no possibility of harm to users of the recovered struvite.
“Extraction and precipitation of phosphorus from sewage sludge”, N. Shiba, F. Ntuli, Waste Management 2016 http://dx.doi.org/10.1016/j.wasman.2016.07.031

Copyright © 2016 European Sustainable Phosphorus Platform, All rights reserved.

European Sustainable Phosphorus Platform (ESPP) General Assembly focussing on Phosphorus stewardship in industrial applications will be held on Thursday 1st December, Brussels within the First EU Raw Materials Week. Success stories and innovation in P stewardship in industry will be presented and areas for possible research or value-chain collaboration will be identified.

The general programme of the day is as follows, more details in the programme:
8h30 – 10h30    ESPP General Assembly (open to non-members): accounts, election of Board, actions underway and action plan priorities for 2017
10h30   Coffee break
11h00 -17h30    Phosphorus stewardship in industrial applications

Participants: ESPP members and network - waste, water, chemicals, fertiliser industries, policy makers, knowledge centres.
To participate: registration obligatory

After more than 10 years of revision, the new draft of the German sewage sludge ordinance (AbfKlärV), which will make phosphorus recovery obligatory for most of Germany’s sewage, has been sent by the Federal Ministry of Environment (BMUB) to the European Commission for notification at September 26th 2016. This notification is the standard procedure for new member state regulations (directive 2015/1535/EU). Once approved by EC, the content cannot be changed afterwards except for minor adaptions. During notification, there is a three months stand-still agreement.

The next steps after notification will be cabinet resolution within the German Federal government in January 2017 and presentation for enactment to the Federal Council of Germany and the Parliament in spring 2017. The new ordinance may thus enter into force with a date 1st January 2018.

The ordinance will make phosphorus recovery from sewage sludge obligatory for all German sewage works larger than 50,000 person equivalents (p.e.), that is, around 500 out of a total of c. 9 300 sewage works in Germany. These 500 larger sewage works represent around 2/3 of the total phosphorus removed from German wastewater and transferred into sludge.

For these larger sewage works, phosphorus recovery will be obligatory if the sludge contains more than 2% phosphorus (dry solids), either by P-recovery from the sludge or by mono-incineration and recovery from sewage sludge incineration ash. If P < 2%, then co-incineration will be authorized. Land application of sludge will only be allowed for sewage works < 50,000 p.e. Currently 29% of German sewage sludge is spread on farmland, and will have to respect the quality criteria of the new German fertilizing ordinance (DüV). The entry into force of these two new ordinances (AbfKlärV and DüV). Is expected to be cut by half the amount of sewage sludge going to farmland.

The new fertilizing ordinance is the German implementation of the EU Nitrates Directive and will already dramatically impact sewage sludge use in Germany in 2017.

Article by Christian Kabbe (former P-REX).
See also: http://www.bmub.bund.de/themen/wasser-abfall-boden/abfallwirtschaft/wasser-abfallwirtschaft-download/artikel/abfklaerv-klaerschlammverordnung

After compost, PVC and non-ferrous metals from bottom ash, struvite will be the fourth secondary resource to be addressed within the International Green Deal North Sea Resources Roundabout (NSRR). Struvite is a specific mineral form of magnesium ammonium phosphate recovered from waste water. A working group of French and Dutch public and private sector experts has its first meeting in the Dutch embassy in Paris on October 7. The case, initiated by Suez, Veolia, Reststoffenunie and Waternet, will focused on the perceived barriers relating to the use of struvite in crystal form. It will specifically explore ways to facilitate the export of struvite recovered from municipal wastewater plants as a raw material for the purpose of producing fertiliser. The initiators hope that this case will be a first step towards creating a European market for struvite.

Full press release here.
More details and a video about the Green Deal North Sea Resources Roundabout.
Parlimament Magezine article about the Green Deal.

Newsletter about nutrient stewardship - European Sustainable Phosphorus Platform (ESPP).

Please subscribe www.phosphorusplatform.eu/Subscribe 
Link to www.phosphorusplatform.eu/eNews4
Download as PDF

Summary:
Success stories
NuReSys struvite recovery technology chosen at Braunschweig, Germany.
NuReSys Appeldoorn struvite plant now operational
Phosphorus recycling from expired fire extinguishers
Outotec and Thermo-Systems partner for nutrient recycling

Opportunities
€ 400 million for raw materials in Horizon 2020
Policy
EU Fertilisers Regulation enters Parliament – Member State discussion
Standard for land use of sewage sludge out for consultation
UN Environment Assembly recognises global nutrient challenges
Restriction on ammonium salts in insulation materials
ECHA consultation on toxicity testing of monosodium phosphate
EU Organic farming committee positive opinion on recovered struvite and calcined phosphates
CEN considers standardisation needs for secondary raw materials

Science and media
Phosphate fertiliser prices falling
Evaluation of manure management in Europe
Technology reviews: nutrient recovery from digestate
EFSA considers data on urea user risks
Agriculture and air pollution
Dietary choices key to reducing phosphorus footprint
Innovative solutions to food waste

Events

 

ESPP workshop “Pharmaceuticals and organic chemicals in sewage biosolids: questions for recycling”: Malmö (near Copenhagen) 27th October 8h00 – 12h00, with the Nordic Phosphorus Conference, 27 - 28 October. Programme www.phosphorusplatform.eu

ESPP General Assembly: phosphorus innovation and stewardship in the chemicals industry: Brussels, 1st December www.phosphorusplatform.eu
For full list of events, see below the news section of this email and on www.phosphorusplatform.eu

 

Success stories

The Municipality of Braunschweig, assisted by PFI Planungsgemeinschaft GbR, has awarded its future phosphorus recovery plant to the combination Bremer-Pro-Aqua - who is the main contractor and will build the struvite recovery unit - and NuReSys - who provides design, support, start-up and commissioning of the unit. The P-recovery unit will treat 100% of the sewage sludge dewatering liquor from the Steinhof sewage works (275 to 350 000 e.h. biological phosphorus removal EBPR). The requirements of the tender required a versatile and flexible solution: flow to the struvite reactor can vary from 8 to 25 m³/h and soluble phosphate (P- PO4) levels between 300 and 800 ppm. The combination offered a tailor-made solution which offers phosphate recovery taking into account the possible effects on post and preceding treatment processes.
Press release: http://www.nuresys-p.be/files/160924-Press-Release-Braunschweig.pdf - http://www.abwasserverband-bs.de/ - http://www.bremerproaqua.de/

The PHOSave project (Horizon 2020 SME Instrument), led by PROPHOS Chemicals will construct a pilot plant near Cromona, Lombardy, to recover and recycle phosphate from exhausted fire extinguishing powders. Over recent years, problematic chemicals in fire extinguishers have been largely replaced by phosphate based dry powders, considered as not posing environmental or health issues and effective in combating fire. Phosphates are also widely used as additives to water sprayed on forest and wildland fires, again because they are considered (see e.g. review Kalabokidis 2000) to have minimal health impacts and to generally not harm ecosystems. Prophos Chemicals is Italy’s only producer of dry fire extinguisher chemicals of all classes. Fire extinguishers have to be periodically emptied, overhauled, refilled and re-pressurised, to guarantee reliable performance in case of fire. The recovered phosphate will be recycled into the chemical industry or as fertilisers.

Outotec, a global leader in minerals and metals processing technologies, has agreed partnership with Thermo-Systems, German-based leader in low-energy drying solutions. These technologies will enable pre-drying of municipal sewage sludge and other bio-materials (e.g. manures) before thermal treatment, where Outotec can deliver a range of technologies for energy recovery and nutrient recycling. Options include mixing of dried bio-materials with biomass ashes to develop slow-release, organo-mineral fertiliser products. A pilot is under construction, in cooperation with the Finland organic fertiliser producer Ecolan Oy, near Nokia, Finland.

Opportunities

The European Commission has published an update of the 2016-2017 Horizon 2020 Work Programme for climate, environment and raw materials, allocating €400 million to raw materials. This will target mainly the EU Critical Raw Materials list, which includes phosphate rock, and will include raw material data systems, international cooperation, the objective of a World Forum on Raw Materials, international networks of raw materials training centres and raw materials ‘innovation actions’ (pilot projects or scale-up and roll-out of new technologies to produce raw materials).
Horizon 2020 Work Programme 2016 – 2017 - 12. Climate action, environment, resource efficiency and raw materials C(2016)4614 of 25 July 2016

Policy

The revision of the EU Fertilisers Regulation will define European criteria for placing on the market of recycled nutrient products (as fertilisers, as soil improvers or as artificial soils), including composts, digestates, plant and crop by-products, food industry wastes, animal by-products and in the future recovered fertiliser products such as struvite or ammonia salts. The draft text published in May 2016 has now entered the European Parliament – Council (Member States) discussion and amendment process. A first proposal for amendments has been published, as a starting point, by Slovakia, the Council Presidency. This includes tighter contaminant levels for both organic and inorganic fertilisers. ESPP is inputting to the discussion process of this text, addressing in particular: the need to include traceability as an option (important to ensure farmer and food industry confidence for nutrients recycled from organic wastes), animal by-products and manures (currently an “empty box” in the Regulation proposal CMC11), workability and definitions of CMCs and PFCs, interactions with REACH …
Summary of Commission proposal: SCOPE Newsletter n° 120 and www.phosphorusplatform.eu/regulatory

A working draft for an international ISO standard for land application of wastewater biosolids has been circulated for comment (not published online). The guidelines cover sewage sludge and composted sludge application to farmland (for food crops, biofuels), to forestry and for soil remediation. The document considers that land application of biosolids brings advantages of improved soil quality (soil carbon, biological activity, density, stability and porosity, cation exchange enabling reduced fertiliser use and pH), nutrient supply and greenhouse emissions benefits (long-term sequestration of c. 50% of biosolids carbon in soil, offset of c. 200 kgCO2 /dry tonne biosolids for nitrogen and phosphorus mineral fertiliser equivalent. The draft ISO Guidelines provides definitions, general information about biosolids nutrients and quality criteria, and then guidelines for application for food and non-food crops and for land reclamation, including principles of risk management, application programme definition and management, information of farmers and others, and sampling. As proposed, the document provides general outlines within which existing national or local biosolids quality and management schemes can be implemented.
ISO 275/WG4 - ISO 19698 WD “Land application of biosolids: guidelines for the land applications of biosolids and biosolids derived products”, dated 5/9/2016. Document not available online: contact your national standards organisation or

UNEA-2, second meeting of the United Nations Environment Assembly brought together 174 nations and 120 Ministers in Nairobi, May 2016. The final resolutions on Sustainable Consumption and Production (UNEP/EA2/L.9) and on Oceans and Seas (UNEP/EA2/L.11/Rev.1) recognise the need for further action to reduce nutrient inputs to the marine environment. The in 2012 Manilla Declaration is confirmed, mandating action on this by UNEP and GPA (Global Programme of Action for the Protection of the Marine Environment from Land Based Activities). A resolution also recognises the need to address food waste (UNEP/EA2/L.10/Rev.1).

The EU has published a Restriction of the use of “inorganic ammonium salts” in cellulose insulation materials, unless ammonia emissions are shown to be low (specified concentrations and CEN/S 16516 adapted conditions). This concerns ammonium phosphates and polyphosphates used for fire safety in a range of cellulose-based building insulating materials, including recycled materials such as textiles, straw or paper. The restriction follows incidents of ammonia emissions occurring during storage or installation of such materials (not during building use) related to temperature and humidity. Ammonia salts and ammonia gas are not considered to show chronic toxicity but in enclosed spaces can be irritating to throat, lungs and eyes and so pose risks for workers. The restriction as published enables continuing use of ammonia phosphates for fire safety, subject to processing or application which prevents ammonia emissions.
Commission Regulation 2016/2017 of 23 June 2016, amending REACH http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv:OJ.L_.2016.166.01.0001.01.ENG&toc=OJ:L:2016:166:TOC

ECHA (European Chemical Agency) has opened to 17th October 2016 a public consultation on animal toxicity testing of sodium dihydrogenorthophosphate (EC 231-449-2, monosodium phosphate), for reproductive toxicity (extended one-generation reproductive toxicity study). The testing proposal has been submitted under REACH by the producers of this substance, who propose to carry out this testing at their expense. The submission notes that there are no studies available to generate necessary information for REACH chemical dossier endpoints, but that there is no data suggesting toxicity. This phosphate is approved for use in human foods (E339 sodium or potassium orthophosphates) and has been widely used, and indeed will simply dissociate to sodium ions Na+ and phosphate ions PO4- in solution and in the body. The public is invited to submit any comments on the proposed animal testing, or any additional relevant data. The full list of all studies relevant to inorganic phosphates is published by industry at http://www.inorganic-phosphates.org/files/ip-consortium/IP%20Website/Documents/Studies/IP_All_studies_list.pdf
ECHA testing proposal consultation: reproductive toxicity (extended one-generation reproductive toxicity study) on Sodium dihydrogenorthophosphate, EC Number 231-449-2, CAS Number 7558-80-7 https://echa.europa.eu/information-on-chemicals/testing-proposals/current/-/substance-rev/14512/term

The EU’s “Expert Group for Technical Advice on Organic Production” (EGTOP) has published its response to two dossiers proposing authorisation of recycled phosphate products as fertilisers in organic agriculture (under EU Organic Farming Regulation 889/2008). The dossier for struvite was submitted by the UK in 2014 and concerns struvite (magnesium ammonium phosphate) recovered in sewage works or from animal waste processing. The dossier for calcined phosphates was submitted by Austria in 2011 and concerns recovery from ashes of sewage sludge, meat and bone meal (MBM), or other biomass ash. The committee concludes that for Ostara Pearl struvite (the submitted dossier) there is no hygiene risk (organic pollutants or pathogens), but that this is not proven for other struvite production methods. Struvite recovery is noted to be conform to environmental objectives (reduces N and P losses to surface waters, recycles nutrients, reduces consumption of non-renewable P resources) and concludes that struvite should be authorised for organic farming “provided that the method of production ensures hygienic and pollutant safety”. For calcined phosphates, the committee also concludes that recovery from ashes is conform to environmental objectives (but with some concerns about energy consumption) and that calcined phosphates should be authorised for organic farming subject to being recovered from sewage sludge incineration ash and that heavy metal content should be limited (proposal: chromium(VI) non detectable, other heavy metals “minimised”). However, EGTOP also concludes that these two products cannot be authorised under the Organic Farming Regulation until they are authorised under the EU Fertilisers Regulation, so confirming the importance of the ‘STRUBIAS’ process underway to integrate such products into the current revision of this Regulation.
Expert Group for Technical Advice on Organic Production (EGTOP) “Final Report on Organic Fertilizers And Soil Conditioners (II)”, final version 2 February 2016 http://ec.europa.eu/agriculture/organic/eu-policy/expert-advice/documents/final-reports_en

A meeting was organised by CEN (the European Standardisation Committee) and CENELEC (electrical equipment) on 'Standards for circular economy: waste management and secondary raw materials' in Brussels 8th September. Of around 100 participants, ESPP and the paper industry were maybe the only representatives of the bio-nutrient and bio-materials sector. Yet, the need for standards development to support nutrient recycling and valorisation of bio-waste streams was made clear. Some of the day’s conclusions are strongly applicable to the nutrient circular economy: need to standardise terminology and definitions, including how to measure the recycling rate, importance of public information (e.g. traceability) to develop trust; potential of EN standards to open markets for export; quality standards for input materials, processes and recycled (nutrient) products; benchmarking to indicate for what uses a recycled product is appropriate. The meeting registered that a number of initiatives are underway or expected: EC mandates to CEN for standards development to support the Fertilisers Regulation revision and the EU Circular Economy Package, interface work to identify gaps and incoherence between fertiliser regulations, REACH, waste regulation; BS 8001 proposed standard “Framework for circular economy principles”. This meeting aims to launch a CEN informal process for dialogue on on standards for the circular economy, waste and secondary materials, in which ESPP will actively participate.

Science and media

Integer market research consultants suggest that world phosphate fertiliser prices, which have fallen very low, may stop dropping. The current low price level of DAP and MAP (di- and mono ammonium phosphate) has led to a 30 – 50% reduction in China’s exports and is pressuring even integrated producers’ margins, despite low sulphur and ammonia prices. The consultants suggest that the PotashCorp – Agrium merger announced in North America may push prices upwards. On the other hand, important capacity investments in MENA (Middle East North Africa) soon to come into production will lead to further overcapacity and downwards pressure on prices. ESPP notes that producers of recycled fertilisers in Europe are also facing difficulties, as current low mineral fertiliser prices push down the sale prices of their products.
“What is driving Phosphate markets and have prices stopped falling?” Integer Research 5/9/2016

The EU-funded LIFE+ 5-year MANEV project, bringing together 8 knowledge institutes in Denmark, Spain, Italy and Poland, has published its final report assessing the sustainability of manure management systems in Europe. Livestock in Europe generates 1 400 million tonnes of manure per year, containing 7 million tonnes of nitrogen (N) – compared to some 11 million tonnes N applied in mineral fertilisers. The environmental impact cost of ammonia emissions, greenhouse gases and nitrogen losses to rivers alone is estimated at 12 300 million €/year. Treatment systems assessed are: acidification, solid-liquid separation, anaerobic digestion, aerobic biological treatment, composting, evaporation, thermal drying, ammonia stripping and recovery, filtration / osmosis, phytoepuration and land spreading. The report concludes that the appropriate treatment depends on the local situation. Land spreading is the first option where possible (not local manure surplus), that nutrient removal should not be implemented without recovery and recycling, and that aerobic digestion can support nutrient recovery. Also, it is noted that manure acidification will develop if legislation requires limiting of ammonia emissions, solid-liquid separation is important to facilitate nutrient recovery, further work is needed on the quality of recovered products from ammonia stripping, quality standards are needed to develop a market for composted manure, filtration and osmosis are likely to remain limited because of high cost.
MANEV “Evaluation of manure management and treatment technology for environmental protection and sustainable livestock farming in Europe” (LIFE09 ENV/ES/000453), final report, December 2015, 180 pages www.lifemanev.eu

Vaneeckhaute et al. 2016 summarise the characteristics of digestate are summarised, noting the wide variability, and processing technologies discussed. Most processing starts with solid/liquid separation. A number of nutrient recovery technologies as applicable to digestate are reviewed, looking at technical and economic aspects, and marketability of the end-products as fertilisers: ammonia stripping and adsorption, acidic air scrubbing, membrane filtration, ammonia and phosphorus sorption onto different materials (e.g. natural zeolites), biomass production and harvest, struvite precipitation, calcium phosphate precipitation, phosphorus recovery from ashes/biochar. Ammonia stripping then recovery using acidic air scrubbing and struvite precipitation were identified as the best available technologies. However, ammonia sulphate from the former does not necessarily find a market in liquid form as it is generally produced. Biomass production can be cost effective, but requires a large land footprint. Membrane filtration systems have often suffered technical problems and are not today economically viable for digestate treatment.
Drosg et al. 2015 provide a practical presentation of nutrient recovery from digestates for biogas plant operators and developers, as well as policy makers. The report covers both solid-liquid separation (decanter centrifuge, screw press, belt filters, decantation, flotation and others), processing of the digestate solid and liquid fractions (composting, drying, ammonia stripping, ion exchange, struvite precipitation, membranes, evaporation). A detailed cost analysis for six digestate processing scenarios is provided, concluding that direct land application is most cost effective if locally possible, and optimal processing system is highly site and case specific.
“Nutrient Recovery from Digestate: Systematic Technology Review and Product Classification”, 20 pages, C. Vaneeckhaute et al., Waste and Biomass Valorisation, 2016 http://dx.doi.org/10.1007/s12649-016-9642-x
“Nutrient Recovery by Biogas Digestate Processing”, B. Drosg, IEA Bioenergy ISBN 978-1-910154-15-1, 2015, 40 pages http://www.iea-biogas.net/files/daten-redaktion/download/Technical%20Brochures/NUTRIENT_RECOVERY_RZ_web1.pdf

EFSA (European Food Safety Agency) has published an assessment of urea – safety for users – regarding use under the Plant Protection Products Directive 91/414/EEC. EFSA cite the US EPA conclusions that chromosome aberrations have been noted in some tests and that data does not enable to exclude genotoxicity or carcinogenicity. EFSA notes that data submitted is inadequate to derive acceptable exposure levels for operators (AOEL). Previous EFSA Opinions have concluded that urea is safe for appropriate uses in cosmetics and in ruminant animal feeds.
“Outcome of the consultation with Member States, the applicant and EFSA on the pesticide risk assessment for urea in light of confirmatory data”, EFSA 12 July 2016. “Scientific Opinion on the safety and efficacy of Urea for ruminants”, EFSA-Q-2004-030 2012.

The UK’s Financial Times reports that agriculture is Europe’s biggest contributor to air-pollution related mortality. Based on a Netherlands government funded study (not yet published), the article states that air around “farming hotspots” can be as damaging to health as in a city with traffic. A key problem is indicated to be ammonia, released from manures in livestock production, manure storage and spreading. Ammonia can combine with other atmospheric pollutants to form particles which can damage the lung and the heart. 94% of Europe’s ammonia emissions come from agriculture. A study of 2 500 persons in the Netherlands indicated that people living within “Farming ‘hotspots’ carry air pollution risk, Dutch study finds”, P. Clark, Financial Times, 2 September 2016. Study by Lidwien Smit, Utrecht University, Netherlands.

The average Australian diet includes c. 0.67 kgP/day (1.8g phosphorus per day) but with a phosphorus footprint of 4.9 kgP/year to produce this food. The authors calculate that changing to a vegetarian diet with the same protein content would reduce this P-footprint by -72% whilst the diet P intake (and so P in human excreta entering sewage) would increase by +8%. This assumes the same protein intake in the vegetarian diet, which is probably unrealistic as this would mean replacing a 150g of braised steak by nearly 600g of cooked lentils or beans. Even though some authors recommend a 25% higher protein intake with a vegetarian diet, the Australia average protein intake is around 80% higher than needed for health (world average is one third higher).
“Potential impact of Dietary choices on Phosphorus recycling and Global Phosphorus Footprints: the case of the Average Australian city”, G. Metson1, D. Cordell & B. Ridoutt, Frontiers in Nutrition, Aug. 2016, vol. 3, art. 35 http://dx.doi.org/10.3389/fnut.2016.00035

The Sierra Club USA magazine highlights ten innovative solutions for food waste. The US is estimated to waste half the food grown, generating 70 million tonnes of food waste per year, containing significant contents of nutrients. Action is however starting in the US, with an official objective announced a year ago to cut food waste by 50% by 2030 and legislation to loosen restrictions and increase tax benefits for restaurants, stores and institutions which donate food. The ten solutions presented by Serra Club support businesses to make food waste minimisation a revenue centre and local government to enable food waste management, provide geolocalisation to bring past-date food to needy charities, ensure marketing of imperfect produce, online exchange of surplus garden fruit and veg, composting of non-edible food waste.
“10 Innovative Solutions to Food Waste” K. O’Reilly, Sierra Magazine, July-August 2016

 
Events
 
 
Copyright © 2016 European Sustainable Phosphorus Platform, All rights reserved.

The European Economic and Social Committee has adopted its ‘Opinion’ on the EU Fertilisers Regulation revision. EESC supports the objective of extending the existing regulation from only mineral fertilisers (at present) to cover organic and waste based fertilisers, subject to ensuring environmental protection, underlining that recycled fertilisers “may in the future constitute an important part of an integrated circular economy” (recalling the EESC Opinion on the Circular Economy jobs and SMEs, 2014). The need to clarify definitions of a “secondary raw material”, waste, by-products, end-of-waste are underlined, pointing to the contradictions in the current text between application to PFCs and CMCs [$4.2 of EESC Opinion]. EESC wants systems of control, labelling (present in the proposed text) and [$1.3] traceability (not present). EESC underlines [$1.9, $4.5] that municipal waste water has potential and value as a raw material for organic fertiliser – whereas this is excluded in the current regulation proposal. EESC also notes [$4.8] the need to exempt from REACH recovered materials beyond compost (EESP comment: e.g. digestate see www.phosphorusplatform.eu/regulatory) .

Opinion of the EESC on the EU Fertilisers Regulation Revision, adopted 13-14 July 2016, refs. NAT/691 – EESC-2016-03054-00-01-AC-TRA (EN) 1/8, rapporteur Cillian Lohan www.eesc.europa.eu/?i=portal.en.nat-opinions.39587

The programme  is now online for the ESPP workshop on “Pharmaceuticals and organic chemicals in sewage biosolids: questions for recycling”, Malmö (near Copenhagen) 27th October 8h00 – 12h00, in cooperation with the Nordic Phosphorus Conference, 27th October (12h00) – 28th 13h30 (same venue).
See for more details and registration here.

ESPP’s 2016 General Assembly will take place Brussels, 1st December 2016 (9h – 17h), looking at phosphorus in industry: sustainability, recycling, new applications and processes, P4 and phosphorus chemicals. Tis is within the EU’s First Raw Materials Week parallel to ESPP’s general Assembly, the thematic meeting will enable industry and stakeholder dialogue on developments such as: new uses and applications for phosphorus in industry and energy, P-recovery from waste streams to industrial chemicals and P4, recycling of phosphorus in industry through other routes (e.g. fire safety chemicals, plastics), reducing environmental impact of P chemistry, challenges and opportunities around medical and industry applications nano forms of phosphates.

The EU’s “Expert Group for Technical Advice on Organic Production” (EGTOP) has published its response to two dossiers proposing authorisation of recycled phosphate products as fertilisers in organic agriculture (under EU Organic Farming Regulation 889/2008). The dossier for struvite was submitted by the UK in 2014 and concerns struvite (magnesium ammonium phosphate) recovered in sewage works or from animal waste processing. The dossier for calcined phosphates was submitted by Austria in 2011 and concerns recovery from ashes of sewage sludge, meat and bone meal (MBM), or other biomass ash. The committee concludes that for Ostara Pearl struvite (the submitted dossier) there is no hygiene risk (organic pollutants or pathogens), but that this is not proven for other struvite production methods. Struvite recovery is noted to be conform to environmental objectives (reduces N and P losses to surface waters, recycles nutrients, reduces consumption of non-renewable P resources) and concludes that struvite should be authorised for organic farming “provided that the method of production ensures hygienic and pollutant safety”. For calcined phosphates, the committee also concludes that recovery from ashes is conform to environmental objectives (but with some concerns about energy consumption) and that calcined phosphates should be authorised for organic farming subject to being recovered from sewage sludge incineration ash and that heavy metal content should be limited (proposal: chromium(VI) non detectable, other heavy metals “minimised”). However, EGTOP also concludes that these two products cannot be authorised under the Organic Farming Regulation until they are authorised under the EU Fertilisers Regulation, so confirming the importance of the ‘STRUBIAS’ process underway to integrate such products into the current revision of this Regulation.

Expert Group for Technical Advice on Organic Production (EGTOP) “Final Report on Organic Fertilizers And Soil Conditioners (II)”, final version 2 February 2016

A meeting was organised by CEN (the European Standardisation Committee) and CENELEC (electrical equipment) on 'Standards for circular economy: waste management and secondary raw materials' in Brussels 8th September. Of around 100 participants, ESPP and the paper industry were maybe the only representatives of the bio-nutrient and bio-materials sector. Yet, the need for standards development to support nutrient recycling and valorisation of bio-waste streams was made clear. Some of the day’s conclusions are strongly applicable to the nutrient circular economy: need to standardise terminology and definitions, including how to measure the recycling rate, importance of public information (e.g. traceability) to develop trust; potential of EN standards to open markets for export; quality standards for input materials, processes and recycled (nutrient) products; benchmarking to indicate for what uses a recycled product is appropriate. The meeting registered that a number of initiatives are underway or expected: EC mandates to CEN for standards development to support the Fertilisers Regulation revision and the EU Circular Economy Package, interface work to identify gaps and incoherence between fertiliser regulations, REACH, waste regulation; BS 8001 proposed standard “Framework for circular economy principles”. This meeting aims to launch a CEN informal process for dialogue on on standards for the circular economy, waste and secondary materials, in which ESPP will actively participate.

Historical SCOPE newsletters about phosphorus and nutrient management are now online on the ESPP website and can be downloaded here.

With the opening of its « Technophos » Centre of Excellence and Technology in Varna, Bulgaria, the Belgian group EcoPhos consolidates its pioneering role in the area of phosphates and phosphorus recycling. For more details see this information, the website and the live stream of the opening.

Do you have an innovative idea related to manure processing? Join the competition and win the Ivan Tolpe Award. More details and the website.

Phosphates 2017 530 115

13 - 15 March, Tampa, Florida, USA.

The only global event for the fertilizer, industrial and feed phosphate markets. 

http://www.crugroup.com/events/phosphates

Best practice models from the Nordic countries and Europe, challenges of P recovery and recycling, quality standards and developing secondary markets with the Nordic Council of Ministers, the EU Commission, EPAs of the Nordic Countries, companies and local authorities. Oganized by Swedish Waste Management, Norwegian Waste Management and Recycling Association, and DAKOFA Waste and Resource Network Denmark and is supported by the Nordic Council of Ministers in cooperation with the Nordic country national water industry federations.

Programme and registration https://dakofa.com/conference/conference

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