膜形态、膜污染和浓差极化对流动电位的影响  

EFFECTS OF MEMBRANE MORPHOLOGY,MEMBRANE FOULING AND CONCENTRATION POLARIZATION ON STREAMING POTENTIAL

作　　者：叶楠[1] 王志[1] 赵之平[1] 王世昌[1] 

机构地区：[1]天津大学化工学院化学工程研究所,天津300072

出　　处：《化工学报》2002年第5期447-449,共3页CIESC Journal

基　　金：国家自然科学基金资助项目 (No .2 99760 3 1) .~~

摘　　要：Using five measurement tactics protocoled,the effects of membrane morphology,membrane fouling and concentration polarization on streaming potential were studied.Experimental results show that the compaction of microfiltration membrane can result in some morphological changes,hence in streaming potential variation.But this kind of change of ultrafiltration membrane is not obvious.Among the five measurement tactics used,reducing pressure step by step after compaction at higher pressure is the best.The research work also verified that charged ultrafiltration membrane could partially reject the salt in solution and the presence of concentration polarization and fouling influenced streaming potential.Using five measurement tactics protocoled,the effects of membrane morphology,membrane fouling and concentration polarization on streaming potential were studied.Experimental results show that the compaction of microfiltration membrane can result in some morphological changes,hence in streaming potential variation.But this kind of change of ultrafiltration membrane is not obvious.Among the five measurement tactics used,reducing pressure step by step after compaction at higher pressure is the best.The research work also verified that charged ultrafiltration membrane could partially reject the salt in solution and the presence of concentration polarization and fouling influenced streaming potential.

关 键 词：测量策略 膜形态结构 膜污染 浓差极化 

分 类 号：TQ028.8[化学工程]