净水技术2011，Vol.30Issue(1)：33-38,66,7.
中空纤维膜生物反应器膜污染影响因素
Membrane Fouling Factors of Hollow Fiber Membrane in Municipal Wastewater Treatment Process
摘要
Abstract
Paper investigated the external factors effected on membrane fouling of two different membrane aperture PVDF hollow fiber membranes bioreactor in municipal wastewater treatment process. Results indicated that membrane fouling was affected by activated sludge properties extracellular polymeric substances (EPS) and membrane aperture but not totally the concentration of sludge. With the effect of activated sludge, the decline of membrane filtration ability was mainly ascribed to the variation of sludge properties but not the concentration of activated sludge. The sludge viscosity increased under the condition of activated sludge concentration increment, and then the membrane filtration resistance increased as well as membrane fouling severed. It was also found that more EPS quantity, the smaller membrane fluxes. With the accumulation of EPS, the void ratio and structure of deposit on the surface of membrane were changed. Big membrane aperture could make quick membrane fouling and flux decline. Though the flux decline had the relationship with membrane aperture in the filtration primary stage, the final stable flux was not affected by membrane aperture.关键词
膜生物反应器/膜污染/活性污泥/EPS/膜孔径分类
建筑与水利引用本文复制引用
陈学民,唐玉霖,伏小勇..中空纤维膜生物反应器膜污染影响因素[J].净水技术,2011,30(1):33-38,66,7.基金项目
国家水体污染控制与治理科技重大专项(2008ZX07317-008). （2008ZX07317-008）
