电去离子技术及其应用进展

电去离子技术作为将电渗析及离子交换技术有效结合的新一代的水处理技术，因其绿色、环保、经济的优势，成为了现代主要的纯水制备技术，广泛应用于工商业领域。在研究分析电去离子技术的基本原理及工作机理的基础上，对现有淡室的填充材料及填充方式进行了总结分析，得出混合填充为最佳方式，且未来可加强对离子交换纤维膜材料的开发，减少电去离子技术工艺处理时间。最后，对电去离子技术的发展历程及近10 a的技术应用情况进行综述，未来可推进电去离子技术广泛应用于无机离子提取等领域。对新型无膜电去离子技术的机理研究有利于该项技术后期大规模的产业化应用。

Progress on electrodeionization technology and its application

As a new generation of water treatment technology that combines electrodialysis and ion exchange technology effectively，electrodeionization technology（EDI） has become the main modern pure water preparation technology due to its green environmental protection and economic advantages，and has been widely used in industrial and commercial fields.Based on study and analysis of the basic principle and working mechanism of electrodeionization technology，the filling materials and filling methods of the existing light chamber were summarized and analyzed，and it was concluded that mixed filling was the best way.In addition，the development of ion exchange fiber membrane materials could be strengthened in the future to reduce the processing time of EDI process.Finally，the development history of electrodeionization technology and its application in recent ten years were summarized.In the future，EDI technology could be widely used in inorganic ion extraction and other fields.The research on the mechanism of the new membrane-free electrodeionization technology（MFEDI） was beneficial to the large-scale industrial application of this technology in the later stage.