Membrane Science and Technology

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Analysis Correlative Factor with Proton leakage During the Process of Bipolar Membrane Electrodialysis

Authors： JIAO Yang1,2, YANG Peng-bo2, CONG Wei2*

Units： 1. The Department of Life Science and Engineering ,Hexi University, Zhangye 734000, Gansu; 2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

KeyWords： BPM; BMED; Current density; Proton leakage

ClassificationCode：TQ028

year,volume(issue):pagination： 2011, 31(6):64-68

Abstract：

Study on the H2SO4 and NaOH are regenerated from Na2SO4 liquor by constant current density during bipolar membrane electrodialysis of three cell （BMED）. The process of BMED is experiment by two types of bipolar membranes (BPM) and the same anion exchange membranes, and analysed interaction which are bipolar membrane quality and water flux of acid cell with proton leakage in the regeneration process of acid. The results showed that water flux of acid cell connect with proton leakadge, and resistance of bipolar membrane impact water flux of acid cell, while the extent of proton leakage is decreased with increase of water flux of acid cell, accordingly resistance of bipolar membrane should be less，all of investigation during the same current density. Farther ,it is indicated that the losing water quantity for proton leakage is the part of gross of water leakage of acid cell. Which can give some references for industrial application of BMED.

Funds：

863重点项目课题（2006AA020301）、中科院重要方向性项目（KSCX2-YW-G-020）

AuthorIntro：

焦扬：（1973- ），女（汉），甘肃景泰人，硕士，讲师，生物化工方向。E-mail: yangjiao2808@163. com 。 *为通讯联系人

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