电渗析浓缩高盐溶液:阴阳离子交换膜匹配性关系

doi:10.52396/JUST-2021-0044

中国科学技术大学学报 ›› 2021, Vol. 51 ›› Issue (2): 103-110.DOI: 10.52396/JUST-2021-0044

电渗析浓缩高盐溶液:阴阳离子交换膜匹配性关系

颜海洋¹, 李为¹, 汪耀明^1*, 吴亮¹, NIKONENKO Victor², PISMENSKAYA Natalia², 徐铜文^1*

1.中国科学技术大学化学与材料科学学院应用化学系,安徽省功能膜材料与技术工程实验室,安徽合肥 230026;
2.俄罗斯库班国立大学,俄罗斯克拉斯诺达尔市 350040

收稿日期:2021-02-05 修回日期:2021-02-25 出版日期:2021-02-28 发布日期:2021-11-16
通讯作者: * E-mail:ymwong@ustc.edu.cn; twxu@ustc.edu.cn

Electrodialysis to concentrate high-salinity solutions: The matching relation between cation- and anion-exchange membranes

YAN Haiyang¹, LI Wei¹, WANG Yaoming^1*, WU Liang¹, NIKONENKO Victor², PISMENSKAYA Natalia², XU Tongwen^1*

1. Department of Applied Chemistry, Anhui Provincial Engineering Laboratory of Functional Membrane Science and Technology, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China;
2. Kuban State University, Krasnodar 350040, Russia

Received:2021-02-05 Revised:2021-02-25 Online:2021-02-28 Published:2021-11-16
Contact: * E-mail: ymwong@ustc.edu.cn; twxu@ustc.edu.cn

摘要/Abstract

摘要： 研究了阳离子交换膜和阴离子交换膜的匹配性对电渗析浓缩性能的影响,主要考察了电渗析过程中的盐通量、水通量、水盐通量比和电渗析浓缩液的浓度.实验结果表明,当阳离子交换膜具有合适的离子交换容量时,阳离子交换膜的水含量对电渗析的浓度性能有着重要的影响;相比于离子交换容量和水含量,阴离子交换膜的离子渗透性对电渗析浓缩性能有着更加重要的影响.此外,当阳离子交换膜和阴离子交换膜均具有较高离子渗透性时,阳离子交换膜对电渗析浓缩的影响更为重要.

关键词: 电渗析, 阳离子交换膜, 阴离子交换膜, 匹配性关系, 浓缩性能

Abstract: The effect of the matching relation between the cation and anion exchange membranes on the electrodialysis (ED) concentration performance was investigated through evaluating the salt flux, water flux, the flux ratio of salt to water and the salt content of the ED concentrate. Results indicate that the water uptake of the cation exchange membrane (CEM) is a key factor for the ED concentration performance when the ion exchange capacity of CEM has a feasible value; while for the anion exchange membrane (AEM), the ion permeability maybe is more important compared with the ion exchange capacity and the water uptake for the ED concentration performance. Besides, CEM has a greater significance for the ED concentration performance compared with AEM when both membranes have a relatively high ion permeability.

Key words: electrodialysis, cation exchange membrane, anion exchange membrane, matching relation, concentration performance

中图分类号:

O658.6+8

颜海洋, 李为, 汪耀明, 吴亮, NIKONENKO Victor, PISMENSKAYA Natalia, 徐铜文. 电渗析浓缩高盐溶液:阴阳离子交换膜匹配性关系[J]. 中国科学技术大学学报, 2021, 51(2): 103-110.

YAN Haiyang, LI Wei, WANG Yaoming, WU Liang, NIKONENKO Victor, PISMENSKAYA Natalia, XU Tongwen. Electrodialysis to concentrate high-salinity solutions: The matching relation between cation- and anion-exchange membranes[J]. Journal of University of Science and Technology of China, 2021, 51(2): 103-110.

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电渗析浓缩高盐溶液:阴阳离子交换膜匹配性关系

Electrodialysis to concentrate high-salinity solutions: The matching relation between cation- and anion-exchange membranes

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