北京市饮用水中卤乙酸的形成与演变

Formation and evolution of haloacetic acids in drinking water of Beijing City.

作者信息

Li S, Zhang X, Liu W, Cao L, Wang Z

机构信息

Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.

出版信息

J Environ Sci Health A Tox Hazard Subst Environ Eng. 2001;36(4):475-81. doi: 10.1081/ese-100103477.

DOI:10.1081/ese-100103477

PMID:11413832

Abstract

The formation and evolution of haloacetic acids (HAAs) in drinking water were examined in five water treatment plants in Beijing City, China. It was found that HAAs in water increased due to prechlorination and postchlorination. The conventional treatment processes removed the HAAs in less than 20%. By comparison, activated carbon bed removed 49-86% of HAAs and was considered to be an effective treatment unit for HAAs removal. The HAAs concentration in distribution system was associated with water sources, especially the total organic carbon in raw water, while its fluctuation appeared small.

摘要

对中国北京市五家自来水厂饮用水中卤乙酸（HAAs）的生成与演变进行了研究。结果发现，预氯化和后氯化导致水中HAAs含量增加。常规处理工艺对HAAs的去除率不到20%。相比之下，活性炭床对HAAs的去除率为49% - 86%，被认为是去除HAAs的有效处理单元。配水系统中HAAs的浓度与水源相关，特别是原水中的总有机碳，但其波动较小。