粉末活性炭+超滤组合工艺(PAC-UF)对去除微污染水效果明显,实验结果表明此工艺对CODcr、NH3-N、UV254和浊度的去除率分别为80%~92%、40%~70%、71%~95%、95%~97%.在此基础上,进一步研究了不同材质和不同孔径超滤膜的膜污染行为,根据Hermia模型分析膜污染发现,三种材质超滤膜中,PVDF膜具有较好的抗污染性能;而不同孔径的超滤膜所对应的膜污染模型是不同的,分析膜污染模型发现,滤饼层阻力在膜过滤中占有重要地位.%The effect of powder activated carbon combined ultrafiltration( PAC-UF) on micro polluted water was obvious. The experimental results showed that the removal rates of CODcr , NH3 -N, UV254 and turbidity were 80% ~92%,40% ~70%, 71% ~95%,95% ~97%, respectively. On this basis, this paper analyzed the different materials and different aperture ultrafilter membrane fouling behavior, according to Hermia model analysis of membrane fouling found that PVDF membrane had better anti-pollution performance in the three kinds of membrane material. Different diameter of the ultrafiltration membrane corresponding to the membrane pollution model type was different. The analysis model of membrane pollution found that the cake layer resistance in membrane filtration occupied an important position.
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