磁性离子交换树脂合成与应用研究现状

Research Status on Synthesis and Application of Magnetic Ion Exchange Resin

磁性离子交换树脂是一类具有磁性特征的季铵型阴离子交换树脂。它具有吸附容量大、吸附速率快、易再生等特点,作为新型水处理吸附材料,具有良好的应用前景。合成过程的核心是将磁性成分均匀、稳定地分散到树脂骨架中,已有的合成方法包括原位法和共聚法,其中后者是目前较为常用的合成方法。磁性离子交换树脂主要应用于饮用水深度处理、生活污水处理和工业废水处理等。本文介绍了磁性离子交换树脂对饮用水中溶解性有机物、微污染物、无机阴离子等污染物的去除机理,分析了其在饮用水消毒方面的应用。

Magnetic ion exchange resin is a class of quaternary ammonium anion exchange resin with magnetic characteristics.It has the characteristics of large adsorption capacity,fast adsorption rate and easy regeneration,as a new type of adsorption material for water treatment,it has good application prospects.The core of the synthesis process is to uniformly and stably disperse the magnetic components into the resin skeleton,and the existing synthesis methods include in situ method and copolymerization method,among which the latter is the more commonly used synthesis method.Magnetic ion exchange resins are mainly used in advanced treatment of drinking water,domestic sewage treatment and industrial wastewater treatment.This paper introduces the removal mechanism of magnetic ion exchange resin for dissolved organic matter,micro-pollutants,inorganic anions and other pollutants in drinking water,and analyzes its application in drinking water disinfection.