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.
出处
《化工学报》
EI
CAS
CSCD
北大核心
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) .~~
关键词
测量策略
膜形态结构
膜污染
浓差极化
measurement tactics,membrane morphology,membrane fouling,concentration polarization
