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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - PHYSICAL REMOVAL OF MICROBIOLOGICAL AND PARTICULATE CONTAMINANTS IN DRINKING WATER, HYDRANAUTICS HYDRACAP ULTRAFILTRATION MEMBRANE SYSTEM AT THE AQUA2000 RESEARCH CENTER - NSF 00/04/EPADW395
Citation:
NSF International. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - PHYSICAL REMOVAL OF MICROBIOLOGICAL AND PARTICULATE CONTAMINANTS IN DRINKING WATER, HYDRANAUTICS HYDRACAP ULTRAFILTRATION MEMBRANE SYSTEM AT THE AQUA2000 RESEARCH CENTER - NSF 00/04/EPADW395. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-03/016, 2000.
Description:
Verification testing of the Hydranautics HYDRA Cap(TM) Ultrafiltration Membrane System (Hydranautics UF unit) was conducted over two test periods at the Aqua 2000 Research Center in San Diego, CA. The first test period, from 8/3/99-9/13/99, represented summer/fall conditions. The second test period, from 2/16/00-3/21/00, represented winter/spring conditions. The source water was a blend of Colorado River and State Project Water. Verification testing was conducted at manufacturer specified operating conditions. The membrane unit was operated in dead-end mode at a constant flux of 69 gfd (115 L/hr-m(2)) with feed water recoveries ranging from 85-87%. During Test Period 1, membrane fouling due to algae bloom was observed near the beginning of the operating period. The system completed all of Test Period 2 without appreciable loss of specific flux. The manufacturer recommended cleaning procedure was effective in recovering membrane productivity. The membrane system achieved significant removal of particulate contaminants and bacteria and seeded MS2 bacteriophage.