Energy and Resource Factory Amersfoort

Transcription

1 Energy and Resource Factory Amersfoort Amersfoort, 2017 Henry van Veldhuizen, Strategic Advisor Water Cycle

2 Vallei en Veluwe

3 Waterschap is the regional Water Authority Board: Daily: Dijkgraaf, heemraden General Board Elections General Board 30 members Daily board dijkgraaf en 3 heemraden Organisation

4 Waterschap Vallei en Veluwe ha inhabitants 16 wwtp s p.e.

5 WWTP Amersfoort ( p.e.)

6 Global DevelopmentsonEnergy and Resources Why focus on energy and resources? 2010: Climate agreement (State Water authority's): 2020: 30% CO2 reduction 2020: 30% improvement energy efficiency 2020: 40% self sufficient 2050: energy neutral Research on recycle of raw materials Global Developments on resources

7 Phosphorus reserves are running out!

8 Dutch Approach Programme Energy and Resource Factory Cooperation between 21 Dutch water authorities Shared vision and ambition: route map 2030 Waste water as a resource of raw materials, energy and clean water

9 Creating value through connecting! source:

10 WWTP Amersfoort ( p.e.)

11 Ambition Energy and Resources (international) coöperation innovation! Knowledge exchange energy Waste water Ambition Clean water Sludge sand nutrients Paper fibers/ cellulose Raw Fuel Materials

12 Project history Measures WWTP Amersfoort 2010: Biogas Filtration 2011: Bubble Aeration 2012: De-ammonification reactor for centrate (DEMON) 2012: Sand Filtration installation Increase of Energy Production / Consumption rate from 30% (2006) to 60% (2012)

13 Introduction sand filter kwh/y Introduction bubble aeration Biogas filtration with activated carbon DEMON total consumption electricity elektricity production CHP electricity aeration electricity purchase

14 Project Omzet.Amersfoort(2010) Three Phases: 1.Central digestion + Thermal Hydrolysis + new CHP s 2. Bio-P and P-recovery 3.Sludge drying with excess heat

15 Project Omzet.Amersfoort Expected results: Phase 1: Energy: Amersfoort Energy Positive Sludge: 30% d.w. Phase 2: Phosphate: 40% recovery of total phosphate region struvite 900 ton/yr Chemicals consumption: Reduction 50% Pay back time: 6-7 yrs Phase 3: Sludge drying Sludge: 90% d.w. for 75% of the sludge

16 Process scheme: sludge Amersfoort CHP PST AT SST Gas storage DEMON GT pearl Woudenberg BT Was strip BT 12% Dig. Buffer centrifuge sec. sludge Nijkerk CHP TPH Buffer prim. sludge Digestion sec. sludge Soest prim. sludge sec. sludge CHP Digestion eindvw niet specifiek

17 Sludge and Wasstrip Application of Wasstrip Increase of P-recovery Soest Prevent uncontrolled struvite precipitation Woudenberg

18 Process scheme: biogas Amersfoort CHP PST AT SST Gas storage DEMON GT pearl Woudenberg BT Was strip BT 12% Dig. Buffer centrifuge sec. sludge Nijkerk CHP TPH Buffer prim. sludge Digestion sec. sludge Soest prim. sludge sec. sludge CHP Digestion eindvw niet specifiek

19 Digestion and Thermal Pressure Hydrolysis New gas storage LysoTherm for sludge hydrolysis New CHP: 3 * 500 kw

20 total electricity consumption kwh/year electricity production CHP's kwh/year electricity production CHP's % of consumption ,00 90, , ,00 60, ,00 40, , ,00 10,

21 Process scheme: Pearl Amersfoort CHP PST AT SST Gas storage DEMON GT pearl Woudenberg BT Was strip BT 12% Dig. Buffer centrifuge sec. sludge Nijkerk CHP TPH Buffer prim. sludge Digestion sec. sludge Soest prim. sludge sec. sludge CHP Digestion eindvw niet specifiek

22 Pearl Crystalliser TREATED EFFLUENT RECYCLE LINE CHEMICAL ADDITION INFLUENT CRYSTAL GREEN FERTLIZER

23 Pearl Produces a Finished Fertiliser Product PEARL CHEMICAL ADDITION DEWATERING CLASSIFYING FEED DRYING BAGGING

24 Pearl Produces a Finished Fertiliser Product

25 Crystal Green Phosphate fertilizer Root-Activated (Citrate Soluble) 99.6% Purity 0.9, 1.5, 3.0, 4.5 mm prill size High uniformity index

26 Project Omzet.Amersfoort Gas storage Digestion Lysotherm Pearl Wasstrip Crystal Green CHP

27 Project Omzet.Amersfoort First Project Results (2016): Production of 93% of electricity consumption Biological P removal in Soest completed, in Amersfoort still to be optimised Sludge dry matter content increased from 25% to 27,5% Decrease in consumption of chemicals

28 The movie... ZenKk

29 Future: Phase 3 sludge drying Sludge drying with excess heat Pilot/demo with 10% on wwtp Ede: 1000 ton/yr Period: Interpretation of results for WWTP Amersfoort in 2018

30 Future: policy and plans Waterschap Valleien Veluwe Waterschap Vallei en Veluwe will be energy neutral in 2020 Further focus on development of Resource Factory Resources from wastewater: Clean Water, P/N, alginate, Biogas, CO2 Removal of micro pollutants, pharmaceuticals Concentration of wastewater

31 Everything clear more information: