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Foss Reservoir, located 12 miles northwest of Clinton, Oklahoma, was formed after a 3 milelong earth-fill dam was completed in 1961. One goal of this project was to providedrinking water to supplement local supplies for cities and towns in the area. The water inthe reservoir proved to be unsuitable for this purpose, as it contained 900 mg/l ofhardness and 1000 mg/l of sulfate with a total dissolved solids (TDS) of 1600 mg/l. Thetowns had to wait 10 years until desalting technology developed to the point wherebuilding a treatment plant was considered practical. Working with the Office of SalineWater, both Electrodialysis (ED) and Reverse Osmosis (RO) were pilot tested and bidsfor a 3-MGD plant were received. ED was selected, with one of the major factors in thedecision being a 7-year membrane warranty being included in the offer. The ED plantcompleted its startup performance test in October 1974 and has been in operation for thepast 28 years. At the time of startup, this plant was the largest capacity membranedesalting plant in the world. Construction on a plant renovation and capacity expansionproject that includes replacement of the desalination equipment started in October 2002.This paper discusses the plant history and the development of the renovation plan. Includes tables, figures.

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Edition: Vol. - No. Published: 03/05/2003 Number of Pages: 8File Size: 1 file , 310 KB