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ͼţTU9924 ױ־룺A ±ţ1674—4764(2012)04—0099—06
Pilot Investigation of Water Production by Ultrafiltration Process
during High Algal Period
XU HangCHEN WeiYANG Jinhu6PAN Shaolin6ZHAO Lei6
(aKey Laboratory of Integrated Regulation and Resource Development on Shallow LakesMinistry of Education
bEnvironmental Science CollegeHohai UniversityNanjing 210098PRChina)
AbstractOn account of the characteristics of water in Taihu during high algal periodthe pilot investigation
was conducted with the combination of uhrafihration membrane with coagulationpre—oxidation technology
or adsorption technologyThe results show that the quality of influent water from the three combination
processes coagulation precipitation—ultrafiltration membranepotassium permanganate—coagulation
precipitation—ultrafiltration membranepotassium permanganate—coagulation precipitation—power activated
carbon—uhrafiltration membrane are preferredwith turbidity 10wer than 01 NTUalgae control in the
number of 25×104Iand other measured targets meet the drinking water standards(GB 5749--2006)
The organic matter of high algal water mainly includes hydrophobic organic compounds which are maj or
factors leading to membrane foulingThe effective pre—treatment before uhrafihration membrane can
prevent hydrophobic organic compounding into the membrane porewhich will effectively ease the
membrane fouling during the high algal period
Key wordsuhrafihration membranecombination processhigh algal watermembrane fouling
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