摘要
原水氯消毒过程中,氯会与水中的天然有机物(NOM)反应,生成三卤甲烷、卤乙酸等消毒副产物(DBPs)。为了选择有效的饮用水净化工艺,控制消毒副产物的生成,研究天然有机物的化学特性及与消毒副产物的关系,是十分必要的。在总结NOM相似组分化学分离方法的基础上,概括了不同水源中NOM及各组分溶解性有机物(DOC)的含量、对消毒副产物的贡献、化学组成以及可能生成DBPs的化学结构。不同水源中NOM及各组分DOC含量不同,相同组分对消毒副产物的贡献也有很大的差别,且NOM各组分的化学组成有一定的重叠,对生成DBPs的化学结构需继续研究。
Disinfection by-products （DBP） such as trihalomethane and haloacetic acid are formed when natural organic matter （NOM） in water reacts with chlorine. In order to choose effective technics to control DBPs, it is necessary to investigate the chemical characteristic of NOM and its relationship with DBPs. Based on the summarizing of the chemical isolation methods of NOM, the content of dissolved organic carbon（DOC）, the contribution to DBPs, the chemical constitutes and the possible structure to form DBPs of NOM and its fractions in different water source were reviewed. The content of dissolved organic carbon（DOC） and its fractions were different and the contributions to DBPs of the same fractions were vary in various water some. There were some overlaps in the fractions and the structure of NOM need to be further studied.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第2期25-28,32,共5页
Technology of Water Treatment
基金
广西环境工程与保护评价重点实验室研究基金资助项目(桂科能0804k024)
关键词
天然有机物
消毒副产物
XAD树脂
化学结构
natural organic matter （NOM）
disinfection by-products （DBP）
XAD resin
chemical structure
