Use of Improved Membranes in Tertiary Treatment by Reverse Osmosis: Prepared for the Water Quality Office, Environmental Protection AgencyWater Quality Office, Environmental Protection Agency, 1970 - 67 páginas |
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30 minutes activated carbon Adjusted to 77°F available cellulose acetate carbon treated secondary CARBON-TREATED SECONDARY EFFLUENT cellulose acetate membrane chemical oxygen demand Chloride COD Removal commercially available cellulose concentrated primary effluent concentrated primary feed CONSTITUENTS DURING OPERATION enzyme-active laundry presoak feed tank filter Flushed for 30 gfd(a in-situ regenerable membrane initial levels laundry presoak solution McDonnell Douglas Corporation membrane cleaning MEMBRANE COEFFICIENT membrane reverse osmosis MEMBRANE SET 2a membrane surface membranes on carbon-treated MEMBRANES OPERATED modified cellulose acetate OPERATED ON CARBON-TREATED Operated on Primary Percent COD PERFORMANCE OF MEMBRANE Performance of Tubular prepared from transesterified Primary and Concentrated primary effluent feed product water flux pump regenerable membrane reverse REGENERABLE UNIT REMOVAL OF WASTEWATER reverse osmosis unit salt removal SET 2a OPERATED sponge ball sulfuric acid Table test results test unit treated secondary effluent Tubular Membrane Set tubular membranes prepared tubular units urea Wastewater Constituents water flux decline