含氮消毒副产物HNMs的形成与控制研究进展  

PROGRESS ON THE FORMATION MECHANISM AND CONTROL STRATEGIES OF NITROGENOUS DISINFECTION BY-PRODUCTS HALONITROMETHANES IN DRINKING WATER

作　　者：鲁金凤[1] 张勇 刘艳芳[1] 付丽霞[1] 郭晓燕[1] 王启山[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071 [2]山东省工程咨询院,山东济南250013

出　　处：《水处理技术》2010年第10期5-9,22,共6页Technology of Water Treatment

基　　金：青年教师及海外留学归国人员资助项目(65010371)

摘　　要：高毒性含氮消毒副产物卤代硝基甲烷(HNMs)近年来在饮用水中频繁检出,引起了全世界的广泛关注。本文阐述了关于HNMs生成势、形成机理及控制方法的研究进展。氨基酸、氨基糖等亲水性有机氮类化合物是HNMs的主要前驱物,臭氧预氧化能降低三卤甲烷、卤乙酸等消毒副产物的生成势,却会导致HNMs生成势的成倍增加。目前对HNMs形成机理的研究只局限于对三氯硝基甲烷形成路径的探讨。对HNMs控制方法的研究也较少。强化混凝、生物活性炭过滤等去除HNMs前驱物的研究只是笼统的考察了DON的去除效能;而Fe0、铁氧化物还原及·OH氧化这些能快速降解已生成HNMs的方法,还都处于研究的初始阶段。针对HNMs的研究现状,提出了今后对HNMs研究的主要方向和亟需解决的问题。Halonitromethanes（HNMs）, the highly cyto- and genotoxic nitrogenous disinfection by-products, have been frequently detected in drinking water recently, which has attracted worldwide attention. The related research on HNMs are reviewed, including the formation potential of HNMs, formation mechanism and the control strategies. Amino acids, amino sugars and some otherhydrophilic organic nitrogen compounds are likely the main precursors of HNMs. Ozone preoxidation can reduce the formation potential of trihalomethanes, haloacetic acids and other disinfection byproducts, but it will lead to the formation potential of HNMs multiplied. To date, forHNMs formation mechanism, there are only a few studies that deduced the formation pathway of chlorpicrin. Few studies on control strategies of HNMs have been reported. The HNMs precursors removal methods, such as enhanced coagulation, biological activated carbon filtration, and so on, only investigate the removal efficiency of DON. The degradation of HNMs with Fe0, iron minerals and hydroxyl radical was rapid, however, these degradation researches are in the initial stage. In view of the research status of HNMs, the issues and the problems that need to be resolved for HNMs in the future are proposed.

关 键 词：卤代硝基甲烷 生成势 前驱物 形成机理 控制方法 

分 类 号：X703.1[环境科学与工程—环境工程]