The technology combining electrodialysis with electrolysis is called ion-exchange membrane electrolysis. Its application in wastewater treatment has commenced recently.
离子膜电解是电渗析和电解结合的具有综合功能特性的技术，近年来在废水处理方面的应用逐渐兴起。
The ion exchange membrane electrolysis has good development because of iron permselectivity of membrane in separating abio-iron and concentrating acid and alkali.
离子交换膜电解技术，由于膜的离子选择透过性，在分离无机离子和浓缩酸碱方面具有良好的发展前景。
There were many methods for preparing cobalt metal of 99.999% purity, such as extraction, membrane separation, ion exchange, electrolysis, zone melting etc.
目前制备99.999%以上金属高纯钴的制备方法很多，主要制备工艺有萃取法，膜分离法，离子交换法，电解法，区域熔炼法等方法。
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