孔道电位封闭及“空穴”传递理论初探  

ELEMENTARY STUDY OF THE NEW THEORY OF POTENTIAL CLOSE IN THE PORE AND THE "CAVITY"TRANSFER

作　　者：张国俊[1] 孟洪[2] 王三反[3] 刘忠洲[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]北京科技大学土木与环境工程学院 [3]兰州铁道学院环境工程系

出　　处：《环境化学》2002年第5期417-422,共6页Environmental Chemistry

摘　　要：通过对离子交换膜表面 ζ电位和间歇通电时 ,电渗析隔室中离子变化的测定 ,建立了离子交换膜选择透过性的新理论 ,即孔道电位封闭及“空穴”传递理论 .The Donnan equilibrium and the two electric layers theory have always been the classical theories to explain the selective property of ion exchange membrane for many years.But there are some problems for these two theories to explain the practical operation of electrodialysis especially in the DC electric field and continuous updating of solution.The ζ potential of membrane surface and the ion changes of electrodialytic compartments under batch operation were investigated in this paper.A new theory of potential close in the membrane pore and the'cavity'transfer was provided.

关 键 词：孔道电位封闭 传递理论 离子交换膜 Ζ电位 “空穴”迁移 电渗析 

分 类 号：O646[理学—物理化学]