水中氯离子去除技术与机理研究进展

Research Progress of Mechanism and Technology for Chloride Ion Removal in Water

含氯离子废水是印染、石油、化工等生产中最常见的废水,若处理不彻底而排放到自然环境中,会造成土壤盐碱化,破坏生态平衡;沿海及盐碱地区的地表水、地下水中氯离子含量很高,若直接使用将会对生产成不良影响;同时水中过高的氯离子也影响着科学试验的准确性。因此,如何高效、快速、低成本地进行水中氯离子的去除至关重要。目前报道的去除氯离子方法主要有化学沉淀法、吸附法、分离法、氧化法等,文章简要介绍了水中除氯的几种方法及其机理,分析了各方法的优缺点,提出了常见含氯离子水体适合的除氯方法与组合技术,为水中氯离子去除方法的深入研究及工业化应用提供参考。

Chloridion-containing wastewater is the most common wastewater in printing and dyeing,petroleum and chemical industries.If it is not thoroughly treated and discharged into the natural environment,it can cause soil salinization and destroy ecological balance.The chloride ion content in surface water and groundwater in coastal saline-alkali areas is very high,which can have adverse effects on production if directly used.At the same time,too high chloride ion in water also affects the accuracy of scientific experiments.Therefore,how to remove chloride ions from water efficiently,quickly and at low cost is very important.At present,the reported methods of chlorine ion removal mainly include such as chemical precipitation,adsorption,separation and oxidation.This paper briefly introduces several methods and their mechanisms of chlorine ion removal in water,analyzes the advantages and disadvantages of each method.It also puts forward suitable chlorine ion removal methods and combined technologies for common chlorine ion-containing water bodies,providing reference for in-depth research and industrial application of chlorine ion removal methods in water.