氯化消毒对溶解性有机质光化学活性影响研究进展  

Research progress in the effect of chlorination disinfection on the photochemical activity of dissolved organic matter

作　　者：蒋何静 刘慧[1] 张玉婷 朱爽 宫福强 孙冰[1] 朱小梅[1] JIANG He-jing;LIU Hui;ZHANG Yu-ting;ZHU Shuang;GONG Fu-qiang;SUN Bing;ZHU Xiao-mei(College of Environmental Science and Engineering,Dalian Maritime University,Dalian 116026,China;School of Life Sciences,Sun Yat-Sen University,Guangzhou 510275,China;Dalian Ecological and Environmental Affairs Service Center,Dalian 116023,China)

机构地区：[1]大连海事大学环境科学与工程学院,辽宁大连116026 [2]中山大学生命科学学院,广东广州510275 [3]大连市生态环境事务服务中心,辽宁大连116023

出　　处：《中国环境科学》2023年第5期2310-2318,共9页China Environmental Science

基　　金：国家自然科学基金资助项目(41576111,11975063)。

摘　　要：氯化消毒工艺在水处理中应用广泛,改变了水中溶解性有机质(DOM)的结构组成和光化学活性,进而在排入地表水后显著影响受纳水体中共存有机污染物的光化学降解.本文聚焦DOM消毒后的环境光化学行为,系统地综述了氯化消毒工艺对不同水体DOM分子量、物质组成、官能团结构等特征的影响,分析了光生活性物质的量子产率和稳态浓度的改变趋势,阐述了消毒后DOM对共存有机污染物光化学降解的影响机制,以期为全面了解和评估消毒工艺的生态影响提供科学参考.Chlorination disinfection process is widely used for water treatment,which changes the structure composition and photochemical activity of dissolved organic matter(DOM)in water,thus significantly affecting the photochemical degradation of coexisting organic pollutants in receiving water after being discharged into surface water.This paper focused on the environmental photochemical behavior of DOM after disinfection,systematically summarized the effects of chlorination disinfection process on the molecular weight,material composition,functional groups and other structural characteristics of DOM in different water bodies.The change trend of quantum yield and steady-state concentration of photoactive substances was also analyzed,and the mechanism of DOM's influence on photochemical degradation of coexisting organic pollutants after disinfection was expounded.The results can provide scientific reference for comprehensively understanding and evaluating the ecological impact of disinfection process.

关 键 词：溶解性有机质 二级出水有机物 光化学行为 氯化消毒 

分 类 号：X13[环境科学与工程—环境科学]