SUMMARY DATA

Startup Year1991
ProcessNF/RO
Capacity (MGD)9.5; expandable to 12MGD
Recovery Rate (%)83
Pretreatmentpotassium permanganate, greensand pressure filters, sulfuric acid, antiscalant (polyacrylic acid), 5 micron polyprophylene cartridge filters
Post-Treatmentdegasification, chlorination, fluoridation, pH adjustment, sodium hydroxide
Feed Water Composition350/1600 mg/L
Product Water CompositionTDS = 268 mg/L; ph = 8.05
Concentrate Disposaldischarge to wastewater treatment plant to reclaim for irrigation

COSTS*

CAPITAL COST ($000)O & M COSTS ($000)
  
Building Electric Power 420
Plant Equipment Steam 
Wells or feed intake O&M Personnel 392
Product tanks  Parts, Chemicals 414
Brine Disposal  Replacement Membranes 175
Other costs  Annual Debt Service 583
TOTAL11,132TOTAL1984

*Source: Leitner & Associates, Survey of U. S. Costs and Water Rates for Desalination and Membrane Softening Plants, Water Treatment Technology Program Report No. 24, July 1997: U. S. Bureau of Reclamation Water Treatment Engineering & Research Group

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