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Francis Meerburg - Aquafin

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Local Renewables Conference, 2018

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Francis Meerburg - Aquafin

  1. 1. Francis Meerburg, R&D 25 Oct 2018 Public wastewater utilities in European cities today: State-of-the-art and top challenges
  2. 2. Urban Waste Water Treatment Directive 91/271/EEC - Obligation to treat all domestic WW > 2000 IE by 2006 - Art. 12.1: “Treated waste water shall be reused whenever appropriate” Water Framework Directive 2000/60/EC - All EU water bodies must achieve good status by 2015 (only 41% succeeded)  2027 - Annex VI B: stimulate water efficiency and reuse measures European legislation © WWF
  3. 3. Revised EC fertilizer regulation proposed - JRC investigates inclusion of recovered materials – goal 30% - Component Material Categories (CMCs) and Product Function Categories (PFCs) - STRUvite, BIochar + ASh (STRUBIAS) with feedback of Eureau, ESPP, … - Struvite from domestic WW allowable (<3% organic C!) - Biochar from WW sludge not allowed - Uncertainty about sludge ash (P2O5 limit high!) - “Stuck” in trilogue due to political and technical issues Fertilizer regulation Current EG 2003/2003: Only inorganic fertilizers can receive CE label - struvite excluded for EU market © JRC
  4. 4. - Directive proposed on 28 May 2018 - Encourage reuse of WWTP effluent for agricultural irrigation, if relevant - Minimal quality requirements (depending on crop and irrigation system) Upcoming: Directive on water reuse © Wateralex
  5. 5. - Directive proposed on 28 May 2018 - Encourage reuse of WWTP effluent for agricultural irrigation, if relevant - Minimal quality requirements (depending on crop and irrigation system) Upcoming: Directive on water reuse © Wateralex Comments Eureau - Focus on production and distribution, no requirements on the actual reuse - Lack of information on responsibilities of users  all responsibility lies with plant operators - Member states should be required to raise awareness on water reuse opportunities across all stakeholders - Risk management of pollution from effluent: overall approach needed for different pollutant sources (effluent, agriculture, …) - European funds needed for investments in reclamation facilities
  6. 6. JRC report : Towards a better exploitation of the technical potential of waste-to-energy  New BAT techniques for incineration announced Revision of Waste Framework Directive  Better opportunities for obtaining end-of-waste status? Revision of Landfill Directive  Sludge can no longer be landfilled after 2030 Overall: What to do with WWTP sludge? Incineration / land spreading / fertilizer? More changes?
  7. 7. - The wastewater treatment utility of Flanders 5.946 km 301 1.625 Water treatment plants Pumping stations Piping 84% of all domestic waste water treated
  8. 8. Corporate social responsibility - Act green (immission – biodiversity – energy – mobility – circular thinking) - Create opportunities (job flexibility – “great place to work”) - Positive impact (invitingness – less hindrance – innovation – green and blue public spaces) Dialogue with the legislator When it concerns the “edge” of the law (Effluent reuse – (micro)pollutants – resource recovery – circular economy) Knowledge sharing and public participation E.g. Operatie perforatie, Kruitfabriek Beyond the core business of a wastewater utility © Water Technology Magazine © JGR Communications
  9. 9. Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value) R&D&I
  10. 10. R&D&I Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value)
  11. 11. Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value) R&D&I
  12. 12. Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value) R&D&I
  13. 13. Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value) R&D&I
  14. 14. Integral water management Custom rainwater management plan at the level of a specific municipality - Inventory of piping network, ditches and waterways, hydrography, bottlenecks - Consider separate vs. optimized combined sewer system - Identify and designate specific plots for green roofs, infiltration, buffering, drainage, … - Scenario analysis to test system reliability (rain events, river water levels) - Municipality takes over management of private ditches  Avoid water nuisance (flooding, drought)  Increase water visibility in the landscape (recreational value) R&D&I
  15. 15. R&D&I Decoupled local treatment in central areas - Upgrading of rain water for non-potable reuse  not always available! - Upgrading of grey water for non-potable reuse
  16. 16. Resource recovery – dealing with scarcity in short and long term Effluent upgrading and reuse - For groundwater recharge  not necessary in winter, other priorities in summer? - For irrigation / fertigation  short-term problem solving ≠ long-term solutions! - Should be part of a greater “water plan” (align ≠ water sources with ≠ uses, and prioritize during drought) R&D&I
  17. 17. Resource recovery – dealing with scarcity in short and long term Effluent upgrading and reuse - For groundwater recharge  not necessary in winter, other priorities in summer? - For irrigation / fertigation  short-term problem solving ≠ long-term solutions! - Should be part of a greater “water plan” (align ≠ water sources with ≠ uses, and prioritize during drought) Phosphorus recovery - Only a long-term problem, short-term incentives are few - Find a way to monetize “sustainability” R&D&I
  18. 18. Other examples R&D&I Effluent upgrading and reuse Pipelines to industry – a matter of cost minimization Citrique Belge Isvag IWVA
  19. 19. Other examples R&D&I Effluent upgrading and reuse Smart Farming Herbs and beer
  20. 20. R&D&I Many more research projects - Dealing with climate change - CFD - Modeling - Sludge treatment - Nutrient removal and recovery - Corrosion - Sewer real-time control - Overflow management - EU projects (Impakt! – I-QUA – Volatile – Quics – Treatrec) - …
  21. 21. R&D&I Link with incover Aquafin is building similar experience No experience, but directly relevant for us
  22. 22. Legal requirements for resource recovery - P recovery in Germany - Water reuse in Flanders Quality requirements & responsibilities - e.g. struvite may be “cleaner” than mined phosphate ore - No clear quality requirements for non-potable reuse - Quality at Point of delivery vs. Point of use Social acceptance LCA vs. Economics-based decision making Financing - E.g., who pays the expensive upgrading/distribution? Clearing out the “grey zones”
  23. 23. Aquafin NV Dijkstraat 8, B-2630 Aartselaar Tel. 03 450 45 11 • fax 03 458 30 20 e-mail: info@aquafin.be • www.aquafin.be R&D Francis Meerburg francis.meerburg@aquafin.be

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