四川大学学报：工程科学版2011，Vol.43Issue(4)：184-188,5.
有机物极性对超滤膜过滤性能的影响
Effect of Organic Polarity on Ultrafiltration Membrane Filtration Performance
摘要
Abstract
Deionized water was applied to prepare five kinds of water samples,in which the organics were equivalent in contents,but different in polar components.Ultrafiltration membrane was used to filter the samples.Based on the filter cake and intermediate blocking filtration models,the effect of organic polarity on the membrane filtration performance was analyzed.The results showed that the removal rate of organic matters with different polarities was VHASHANEUCHA.At the end of filtration,compared with initial fluxes,the fluxes of sample 1,sample 2,sample 3,sample 4 and sample 5 were 91%,80%,69%,56% and 45%,respectively.The cake layer filtration resistance coefficient denoted by kp and membrane pore adsorption coefficient denoted by kc were increased with the elevation of hydrophobic organic contents,indicating that both the deposition of hydrophobic organics on membrane surface and the membrane pore adsorption performance were stronger than hydrophilic organics.Hydrophobic organic matters were the major factors causing the organic pollution of ultrafiltration membrane.关键词
超滤膜/有机物极性/膜污染/滤饼堵塞过滤模型/中间堵塞过滤模型Key words
ultrafiltration membrane/organic polarity/membrane fouling/filter cake blocking filtration model/intermediate blocking filtration model分类
土木建筑引用本文复制引用
许航,陈卫,孙敏,王维红,许旻..有机物极性对超滤膜过滤性能的影响[J].四川大学学报：工程科学版,2011,43(4):184-188,5.基金项目
国家博士后基金资助项目 （）
