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Adc presentation 6 3-07

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  • 1. The Affordable Desalination Collaboration © 2004 Government Municipal Commercial West Basin municipal water district
  • 2.
    • Demonstrate affordable seawater desalination using proven advancements and designs.
    • Provide a platform by which cutting edge technologies can be tested and measured for their ability to reduce the overall cost of the SWRO treatment process
    • Educate that seawater desalination is an affordable and viable source of fresh water.
    Objectives of the ADC
  • 3. SWRO Historical Energy Consumption kWh/acre-ft kWh/m3 15.3 19.2 23.0 26.8 30.7 kWh/kgal Note: 1. Numbers for energy consumption represent the RO process only. They do not include any allowance for supply or distribution. 2. Numbers are a general average for standard ASTM seawater locations. 1850-2470 kWh/acre-ft 5.6-7.5 kWh/kgal 1.5-2.0 kWh/m3 3.8 7.7 11.5 4.0 5.1 6.1 7.1 8.1 1.0 2.0 3.0
  • 4. US Navy Seawater Desalination Test Site
    • U.S. Navy Seawater Desalination Test Facility at Port Hueneme and the ADC Demonstration Plant
  • 5. ADC-NFESC Test Facility Overview Port Hueneme Boat Channel 1 2 3 4 5 6 7 8 ADC Water Treatment Process 1. Intake pier 2. Intake pump station 3. Central seawater tank 4. Advanced pre-filtration skid 5. ADC SWRO system 6. Backwash/percolation basin 7. Central discharge collection 8. Outfall Parking Test Facility Offices Main Test Building Storage Cargo Road US Navy Seawater Desalination Test Facility Affordable Desalination Collaboration Overview N
  • 6. Design Concept and Basic Flow Diagram Seawater Boat Channel Containerized 200-350 m3/day Seawater Reverse Osmosis Pilot A B C D E F G H Typical ADC Operating Conditions Seawater Tank Product Reject ADC SWRO Process i . Intake pier ii . Intake pump iii . Central seawater tank iv . Advanced pre-filtration v . Supply pump vi . Cartridge filter 5 micron vii . Main high pressure pump viii . High pressure booster pump ix . Isobaric energy recovery x . 3 x 7 element 8” RO vessels i ii iii iv v vi vii viii ix x 1.8 kWh/m3 6.8 kWh/kgal 65k 66k 103 35k 35k 34k 34k 34k TDS 10 747 5 763 737 20 20 35 PSI 51 51 42 93 51 43 51 93 GPM H G F E D C B A Stream Reverse Osmosis Process
  • 7. Energy Requirements for Various Water Supplies and the ADC kWh/m3 kWh/acre-ft 1.5 3.1 4.5 kWh/kgal
    • CRA and SWP figures are for West Basin Municipal Water District (WBMWD) and according to Water Sources Powering Southern California, by Robert C. Wilkinson Ph.D., January 2004.
    • Seawater Reverse Osmosis (SWRO) Process power is from the ADC’s demonstration facility at the “most affordable point” and for the SWRO process only. This includes the power of the main HP pump and PX booster pump only with no allowance for intake, pre-filtration, conveyance or distribution.
    • WBMWD Total Power includes intake, pre-filtration, SWRO Process, conveyance and distribution power for their proposed 20 MGD ocean desalination facility.
    7.7 9.2 10.7 6.1 WBMWD Total Power (3) Seawater Reverse Osmosis Process (ADC) California State Water Project (SWP) Colorado River Aqueduct (CRA) Ground Water Recharge SWP Ground Water Recharge CRA 0.40 0.82 1.19 2.03 2.43 2.83 1.61 Approximately 50% of Southern California's Water Supply 12.3 3.24
  • 8. Average So. Cal Home Water Consumption ~ 400 Gallons of Water Per Day At 7.15 kWh/kgal seawater desalination requires only 120 watts of power to produce 400 gallons per day. 120 Watts 2.8 kWh/day 2.4 kWh/day 140 Watts 3.4 kWh/day 75 Watts 1.8 kWh/day 100 Watts 2.4 kWh/day 100 Watts avg.
  • 9. ADC II Proposition 50 Grant
    • $1M - 50% Non-State share funding
    • Test and demonstrate latest technologies in optimal configurations
      • New membranes (Toray, Hydranautics and Koch)
      • FilmTec hybrid membrane “Next Generation”
      • “ Full scale” Zenon Ultra filtration in natural seawater
      • Hybrid PX flow schemes to push recoveries beyond 50%
    • January 2007 - August 2008
    • Seeking new members to participate in and support ADC II and demonstrate new technologies
  • 10.
    • 2419 E. Harbor Blvd
    • Ventura, CA 93001
    • Tel: 650-283-7976
    • John P. MacHarg
    • E-mail: jmacharg@affordabledesalination.com
    Affordable Desalination Collaboration Contact Information ADC Affordable Desalination Collaboration

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