化工进展 ›› 2020, Vol. 39 ›› Issue (S2): 319-328.DOI: 10.16085/j.issn.1000-6613.2020-1084

• 资源与环境化工 • 上一篇    下一篇

离子交换水软化技术研究与应用进展

徐勇(), 陈青柏, 王建友()   

  1. 南开大学环境科学与工程学院,天津市跨介质复合污染环境治理技术重点实验室,天津 300350
  • 收稿日期:2020-06-15 出版日期:2020-11-20 发布日期:2020-11-17
  • 通讯作者: 王建友
  • 作者简介:徐勇(1995—),男,硕士研究生,研究方向为水污染控制与资源化。E-mail: emailxuyong@163.com
  • 基金资助:
    国家重点研发计划(2017YFC0404003);中央高校科研业务费专项资金(20180017);天津市生态环境治理科技重大专项(18ZXSZSF00050);天津市科技支撑计划重点项目(19YFZCSF00760)

Research and application progress in the technology of water softening by ion exchange

Yong XU(), Qingbai CHEN, Jianyou WANG()   

  1. TianjinKey Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, NanKai University, Tianjin 300350, China
  • Received:2020-06-15 Online:2020-11-20 Published:2020-11-17
  • Contact: Jianyou WANG

摘要:

离子交换法是目前最常见的水软化技术之一,其基于可逆的离子交换反应将溶液中的硬度离子选择性去除,属于典型的特种分离过程。本文介绍并总结了离子交换水软化的基本原理、水软化用离子交换树脂的结构和分类、离子交换水软化技术研究和应用,并针对离子交换水软化存在的问题提出了相应的解决思路。

关键词: 离子交换, 树脂, 软化, 生活用水, 含盐废水, Ca2+/Mg2+去除

Abstract:

Ion exchange method is one of most common technology of water softening, which removes water hardness based on reversible ion exchange reaction and is a typical special separation process. Firstly, the basic principle behind water softening by ion exchange resin is explained. Secondly, research and application progress of the technology is introduced. Finally, for solving the problems exposed by practical applications of the technology , feasible methods and suggestions are proposed.

Key words: ion exchange, resin, softening, domestic water, salty wastewater, Ca2+/Mg2+ removal

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