常规工艺中消毒副产物季节变化研究  

Study on seasonal changes of disinfection by-products in conventional water purification

作　　者：陈超[1] 张晓健[1] 何文杰[2] 朱玲侠[1] 韩宏大[2] 王恩福[2] 李文华[2] 刘静[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]天津市自来水集团有限公司,天津300040

出　　处：《给水排水》2006年第7期15-19,共5页Water & Wastewater Engineering

基　　金：国家高技术研究发展计划(863)项目(2002AA601140);国家自然科学基金重点项目(50238020)。

摘　　要：对某给水厂进行了一个水文年的月度监测,重点分析了各工艺段出水的三卤甲烷和卤乙酸浓度变化。结果表明,对消毒副产物控制起关键作用的工艺是预氯化(混凝)、过滤和消毒。预氯化工艺是一个很大的健康隐患,必须严格控制。在过滤工艺中同时存在消毒副产物的生成和去除两种作用,对三卤甲烷的去除率明显较高,而卤乙酸在过滤前后变化不大。在清水池消毒过程中游离氯会与消毒副产物前体物继续反应生成消毒副产物。Monthly monitoring was carried out in a waterworks in order to investigate the changes of trihalomethane and haloacetic acid in the conventional water treatment processes. The results shown that pre-chlorination, filtration and disinfection were the key processes in controlling disinfection by-products （DBPs）formation. Pre-chlorination should be strictly restricted for its severe health threatening. Filtration process had the opposite effects of formation and removal on DBPs simultaneously. It had higher removal of trihalomethane than haloacetic acid. The disinfection in the clear water tank could lead to continuous increasing of DBPs.

关 键 词：给水厂 消毒副产物 三卤甲烷 卤乙酸 

分 类 号：TU991.25[建筑科学—市政工程] TU991.2