Reverse Osmosis Study on MUST Wastewater Treatment.
Final rept. 1 Apr-31 Dec 74,
UNIVERSAL OIL PRODUCTS CO SAN DIEGO CALIF FLUID SYSTEMS DIV
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Evaluation of reverse osmosis as a method to furnish the water purification equipment needed by an Army Field Hospital to improve the quality of brackish water, to clean up waste water to prevent pollution, and to furnish water for reuse is discussed. The major problem is the removal of organics from the final product water. The following methods were tried to remove organics 1 Evaluation of a non-cellulosic membrane with greater organic rejection and wider pH tolerance than commercially available cellulose acetate membranes under simulated field conditions for the MUST field hospital system. The non-cellulosic membrane being the NS-100 coated in tubular modules having 12 inch diameter tubes. 2 Reduced pressure air stripping to remove the volatile organics of low molecular weight which are the least rejected by the membranes. 3 Foaming of the waste which carries out some of the organics with the foam. 4 Adsorption or absorption or a method to tie up the organics such that they will be better rejected by the membrane. 5 Two stage versus single stage Reverse Osmosis operation.
- Industrial Chemistry and Chemical Processing
- Water Pollution and Control