Characterization of disinfection byproduct formation potential in 13 source waters in China

• Published in: Journal of environmental sciences (China) Vol. 23; no. 2; pp. 183 - 188
• Main Authors: Zhang, Junzhi, Yu, Jianwei, An, Wei, Liu, Juan, Wang, Yongjing, Chen, Youjun, Tai, Jia, Yang, Min
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.01.2011; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences, Beijing 100085, China%Beijing Waterworks Group, Beijing 100065, China
• Subjects: absorbance; basins; bromine substitute factor; China; chlorination; chlorine; chloroform; dichloroacetic acid; Disinfectants - chemistry; disinfection; disinfection byproduct formation potential; dissolved organic carbon; haloacetic acids; Halogens - chemistry; risk; Spectrophotometry, Ultraviolet; THMFP; trichloroacetic acid; trihalomethanes; Water Pollutants, Chemical - chemistry; 三卤甲烷; 产物生成; 无刷直流电机; 有机氯化合物; 水消毒; China; China, People's Rep; bromine substitute factor; trihalomethanes; haloacetic acids; disinfection byproduct formation potential
• ISSN: 1001-0742; 1878-7320
• DOI: 10.1016/S1001-0742(10)60440-8

The formation potential of four trihalomethanes （THMFP） and seven haloacetic acids （HAA7FP） in 13 source waters taken from four major water basin areas in China was evaluated using the simulated distribution system （SDS） chlorination method. The specific ultraviolet absorbance （SUVA254： the ratio of UV254 to dissolved organic carbon （DOC））, which ranged between 0.9 and 5.0 L/（mg.m）, showed that the organic compounds in different source waters exhibited different reactivities with chlorine. The HAA7FP of source waters ranged from 20 to 448 μg/L and the THMFP ranged from 29 to 259 μg/L. The HAA7FP concentrations were higher than the THMFP concentrations in all but one of the samples. Therefore, the risks of haloacetic acids （HAAs） should be of concern in some source waters. TCM （chloroform） and BDCM （bromodichloromethane） were the major THM constituents, while TCAA （trichloroacetic acid） and DCAA （dichloroacetic acid） were the major HAA species. Br-THM （brominated THM species） were much higher than Br- HAA （brominated HAA species）, and the formation of Br-DBP （Br-THM and Br-HAA） should be of concern when the bromide concentration is over 100 μg/L.