Potential of Aquifer Storage and Recovery  (ASR) for a climate-proof irrigation water  supply
Potential of Aquifer Storage and Recovery  (ASR) for a climate-proof irrigation water  supply <ul><li>Koen Zuurbier , Marc...
I. Knowledge for Climate… <ul><li>Development of knowledge and services that make the Netherlands climate proof  </li></ul...
II. Aquifer Storage and Recovery (ASR) <ul><li>Short-term storage (replacing normal basins / storage tanks); </li></ul><ul...
III. No guarantee for freshwater recovery <ul><li>Early salinization of wells caused by </li></ul><ul><li>Mixing </li></ul...
<ul><li>Controlling factors: </li></ul><ul><li>Geological  (aquifer thickness, hydr. conductivity, anisotropy) </li></ul><...
IV. Methods Thickness Hydr. conductivity Chloride (mg/l) REGIS II.1 Oude Essink et al. (2010) Greenhouses, groundwater pre...
V. Results <ul><li>Large spatial variations in analyzed areas </li></ul><ul><li>Always some freshwater recoverable, most i...
V. Results Comparing both methods and 8 existing ASR systems Still large uncertainties in Ward et al (2009), results Bakke...
VI. Discussion, conclusions <ul><li>A first regional ASR performance estimation shows large variations </li></ul><ul><li>A...
End of presentation Pilot site Nootdorp
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Bodem Breed 2011 - Potential of Aquifer Storage and Recovery (ASR) for a climate-proof irrigation water supply

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Bodem Breed 2011 - Potential of Aquifer Storage and Recovery (ASR) for a climate-proof irrigation water supply

  1. 1. Potential of Aquifer Storage and Recovery (ASR) for a climate-proof irrigation water supply
  2. 2. Potential of Aquifer Storage and Recovery (ASR) for a climate-proof irrigation water supply <ul><li>Koen Zuurbier , Marcel Paalman </li></ul><ul><li>KWR Watercycle Research Institute </li></ul><ul><li>Bodem Breed, 29 november 2011 </li></ul><ul><li>Session 5.3: Hydrology of the soil and physical aspects of groundwater </li></ul>
  3. 3. I. Knowledge for Climate… <ul><li>Development of knowledge and services that make the Netherlands climate proof </li></ul><ul><li>Fresh water supply: </li></ul><ul><li>Develop robust, flexible and long-term solutions to bridge mismatch between fresh water demand and supply (quantity and salinity) </li></ul>-2000 -1500 -1000 -500 0 500 1000 1500 2000 2500 1 2 3 4 5 6 7 8 9 10 11 12 Westland horticulture, 5% dry year Water demand (1000 m3) Precipitation (1000 m3) Water shortage (1000 m3) Basins Shortage
  4. 4. II. Aquifer Storage and Recovery (ASR) <ul><li>Short-term storage (replacing normal basins / storage tanks); </li></ul><ul><li>Seasonal storage: potential freshwater supply during summer droughts; </li></ul><ul><li>Applied since 1983, ~ 100 systems installed. </li></ul><ul><li>Successful in Bleiswijk region (Z-H) (‘Oostland’) </li></ul>
  5. 5. III. No guarantee for freshwater recovery <ul><li>Early salinization of wells caused by </li></ul><ul><li>Mixing </li></ul><ul><li>Lateral groundwater flow </li></ul><ul><li>Buoyancy / density-driven flow in brackish – saline groundwater </li></ul><ul><li>What is controlling Recovery Efficiency (RE)? </li></ul>
  6. 6. <ul><li>Controlling factors: </li></ul><ul><li>Geological (aquifer thickness, hydr. conductivity, anisotropy) </li></ul><ul><li>Hydrological/hydrochemical (hydr. gradient, salinity) </li></ul><ul><li>Operational scheme (pumping rate and duration injection, storage and recovery) </li></ul>Ÿ Ÿ Salinity (mg/l Cl) Aquifer Thickness (m) Aquifer Hydraulic Conductivity (m/d) Hydraulic gradient (m/m) Anisotropy (-) Ÿ Ÿ Ÿ Ÿ Pumping rate (m/d) Operational scheme 3 Ÿ III. No guarantee for freshwater recovery What is the potential of this technique in Hotspot Haaglanden?
  7. 7. IV. Methods Thickness Hydr. conductivity Chloride (mg/l) REGIS II.1 Oude Essink et al. (2010) Greenhouses, groundwater pressure heads and 8 existing ASR systems in the hotspot Haaglanden A: Performance estimation tools B: Input (aquifer 1, GIS) R ASR <0.1: good performance 0.1<R ASR <10: uncertain R ASR >10: no recovery Maximal RE Sum factor R asr (-), indicative Buoyancy without lateral flow, isotropy no mixing Buoyancy and lateral flow, no mixing Bakker (2010): BAK Ward et al. (2009): WEA
  8. 8. V. Results <ul><li>Large spatial variations in analyzed areas </li></ul><ul><li>Always some freshwater recoverable, most in central Eastland (R ASR <0.5, RE: 40 – 90 %) </li></ul><ul><li>Less suitable ASR condition in the Westland area (R ASR >0.5, RE: 5 – 70%) </li></ul>Ward et al. (2009): indicative performance under lateral flow and buoyancy Bakker (2010): exact RE under buoyancy only Lower aquitard absent Plume distortion (Ceric and Haitjema, 2005) Q=500 m 3 /d, t in =t rec =120 d, t stor = 0 d
  9. 9. V. Results Comparing both methods and 8 existing ASR systems Still large uncertainties in Ward et al (2009), results Bakker (2010) reasonably match the existing systems
  10. 10. VI. Discussion, conclusions <ul><li>A first regional ASR performance estimation shows large variations </li></ul><ul><li>ASR may only be successful in designated areas </li></ul><ul><li>Further knowledge on bounding aquitards required (hydr. resistance) </li></ul><ul><li>Effect of engineering solutions like skimmer wells, freshkeeper… </li></ul>What is the potential of this technique in Hotspot Haaglanden?
  11. 11. End of presentation Pilot site Nootdorp

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