不同离子交换膜电渗析浓缩的性能对比  

Performance of Different Ion Exchange Membranes on Electrodialysis Concentration

作　　者：李丽[1] 金艳[1] 孙淑英[1] 于建国[1] 吴福平 Li Li;Jin Yan;Sun Shuying;Yu Jianguo;Wu Fuping(National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai, 200237, China;China Petroleum Engineering & Construction Corp. Southwest Company, Chengdu, Sichuan, 610041, China)

机构地区：[1]华东理工大学国家盐湖资源综合利用工程技术研究中心,上海200237 [2]中国石油工程建设有限公司西南分公司,四川成都610041

出　　处：《天然气与石油》2018年第6期99-105,共7页Natural Gas and Oil

基　　金：上海市青年科技英才扬帆计划(17 YF 1403200)

摘　　要：电渗析技术已广泛应用于高盐废水浓缩处理,离子交换膜则是电渗析技术的核心部分。研究对比了国内外五种纯浓缩离子交换膜的基本性能,考察了不同操作条件对浓缩效果的影响,研究结果表明:Na+在不同离子交换膜中的迁移速率大小顺序为AGC≈FUMATECH>ASTOM>FUJIFILM> YICHEN;不同离子交换膜的能耗顺序为AGC≈ASTOM <FUMATECH <FUJIFILM <YICHEN;综合各项性能指标,五种离子交换膜中,AGC的传质性能好,能耗低,应用于纯浓缩工艺更占有优势。考察不同离子交换膜的电化学性能,传质性能及能耗情况,对电渗析技术的工程化应用具有指导意义。Electrodialysis technology has been widely used in the concentration of high-salt wastewater,and the ion exchange membrane is the core of electrodialysis.In this paper,the basic properties of five concentrated ion exchange membranes was investigated.Intermittent electrodialysis experiments were carried out to investigate the effect of different operating conditions on concentration.The order of Na+migration rate of different ion exchange membranes was AGC≈FUMATECH>ASTOM>FUJIFILM>YICHEN,obtained by continuous electrodialysis experiments.While the order of energy consumption is AGC≈ASTOM<FUMATECH<FUJIFILM<YICHEN.It is indicated that the AGC membrane has better mass transfer performance and lower energy consumption,which is more advantageous for the pure concentration process.The study on electrochemical properties,mass transfer performance and energy consumption of different ion exchange membranes provides guidance for the engineering application of electrodialysis.

关 键 词：电渗析 离子交换膜 浓缩倍数 传质性能 能耗 

分 类 号：TQ425.236[化学工程]