henry van veldhuizen amersfoort, 2014. vallei en veluwe
TRANSCRIPT
Henry van Veldhuizen
Amersfoort, 2014
Vallei enVeluwe
244. 833 ha
1.082.000 inhabitants
16 wwtp’s
1.471.00 p.e.
Waterschap Vallei en Veluwe
WWTP Amersfoort (300.000 p.e.)
Presentation
• History– Vision Energy and Resources– Energy Measures WWTP Amersfoort– Research Omzet.Amersfoort– Project Omzet.Amersfoort
• 2013: Procurement Omzet.Amersfoort phase 1 en 2
• Future: Phase 3 Sludge drying
Ambition(2010)
(international) coöperation innovation! Knowledge exchange
Wastewater
sandnutrients
Paper fibers/ cellulose
Sludge
Fuel
energy
Clean water
Vision Energy and Resources
Raw Materials
Measures wwtp Amersfoort
• 2010
• 2012
• 2011
• 2012
-
2.000.000
4.000.000
6.000.000
8.000.000
10.000.000
2005 2006 2007 2008 2009 2010 2011 2012
kWh/y
totaal verbruik elektriciteit elektriciteit voor beluchting
elektriciteit door gasmotor inkoop van elektriciteit
Biogas filtration with activated carbon
Introduction bubble aeration
Introduction sand filter
DEMON
Research Omzet.Amersfoort (2010)
1 Omzet.
Amersfoort
2Central
Digestion
3PE dosing
4Sludge pre-treatment
5Sludge drying
6P-recovery
7 CHP study
8Sudge sale
Results:
• Central digestion + Thermal Pressure Hydrolysis
• No PE dosing (effluent quality)
• Bio-P en P-recovery
• Sludge drying: 75% feasible, but many risc’s
• CHP, no ORC
Project Omzet.Amersfoort (2010)
• Proposal: Three Phases:1. Central digestion + Thermal
Hydrolysis2. Bio-P en P-recovery3. Sludge drying with excess heat
• LIFE+ subsidy:• Realisation innovative aspects
(TPH, P, sludge drying)• Monitoring results• Knowledge sharing
Project Omzet.Amersfoort
• Expected results:
– Phase 1: Energy:• Amersfoort Energy Neutral• Region 65% self sufficient• Heat: dependent on process• Sludge: 30% d.w.• ROI: 6 years
– Phase 2: Phosphate: • 40% recovery of total phosphate region• Chemical usage: Reduction 50%
– Phase 3: Sludge drying• Sludge: 90% d.w. for 75% of the sludge• ROI 7 years
2013: Procurement
• Procurement of Phase 1 and 2 at once
• Selection: SH+E• TPH: Stulz – Lysotherm : • P recovery with Wasstrip and Pearl
Result Procurement
– Phase 1 and 2: Energy en Phosphate:• Amersfoort Energy neutral 130%• Surplus: 2 M kWh/jaar • Region 65% self sufficient 70%• Heat: dependent on process maximum• 40% recovery of total phosphate region 42%• Chemical usage: Reduction 50%• Sludge: 30% d.w. 31%• ROI: 6 years 6,7 jaar
BI 6%
Process according to procurement
GT
ATVBT NBT
Amersfoort
Woudenberg
GI
ontw
sec. slib
BI4,0%
wkk DEMON
strip
pearl
Nijkerk
sec. slib
Soest
prim. slib
sec. slib
prim. slib GT
TDH
Buffer
eindvwniet specifiek
Silo
wkk + div
extra wkk
GT
Future: Phase 3 – sludge drying
• Sludge drying with excess heat• Project not possible on WWTP Amersfoort with project period• Choice: pilot/demo with 10% on wwtp Ede: 200 kWth
• Period: 2014-2016• Interpretation of results for WWTP Amersfoort in 2015
Everything clear…
more information: www.omzetpuntamersfoort.nl/english