Evaluation of Four Measurement Operation Modes of Streaming Potential for Microfiltration and Ultrafiltration Membranes  

微滤和超滤膜流动电位的四种测量操作方式

作　　者：王志 赵媛媛 叶楠 王纪孝 赵之平 王世昌 

机构地区：[1]School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China

出　　处：《Chinese Journal of Chemical Engineering》2006年第4期456-463,共8页中国化学工程学报（英文版）

基　　金：the National Natural Science Foundation of China （No.29976031）, the Collaboration Project Foundation of Tianjin University and Nankal University, and the Key Project Foundation of Tianjin （No.0331810112）.

摘　　要：Surface charge characteristics of a membrane can be determined by the streaming potential. In order to obtain more accurate streaming potential value during the measurement, four measurement operation modes were investigated in this study, and among the four modes, the steady mode with pressure stepped downward was considered the best one. Experimental results showed that the effects of compaction on the streaming potential measurement for a microfiltration membrane was more obvious than that for a ultrafiltration membrane. Both feed pH and presoaking could affect the measurement of streaming potential.

关 键 词：charge characteristics streaming potential MICROFILTRATION ULTRAFILTRATION adsorption kinetics 

分 类 号：TQ021.1[化学工程] TQ028.8