Size and resin fractionations of dissolved organic matter and trihalomethane precursors from four typical source waters in China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Size and resin fractionations of dissolved organic matter and trihalomethane precursors from four typical source waters in China
	Wei, Qunshan; Wang, Dongsheng; Wei, Qia; Qiao, Chunguang; Shi, Baoyou; Tang, Hongxiao
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2008-06
卷号	141 期号:2015-01-03 页码:347-357
关键词	dissolved organic matter disinfection by-products fractionation trihalomethane formation potential ultrafiltration UV absorbance XAD resin
英文摘要	Dissolved organic matter (DOM) and its potential to form disinfection by-products (DBPs) during drinking water treatment raise challenges to water quality control. Understanding both chemical and physical characteristics of DOM in source waters is key to better water treatment. In this study, the DOM from four typical source waters in China was fractionated by XAD resin adsorption (RA) and ultrafiltration (UF) techniques. The trihalomethane formation potential (THMFP) of all fractions in the DOM were investigated to reveal the major THM precursors. The fraction distributions of DOM could be related to their geographical origins in a certain extent. The dominant chemical fraction as THM precursors in the DOM from south waters (East-Lake reservoir in Shenzhen and Peal rivers in Guangzhou) was hydrophobic acid (HoA). The size fraction with molecular weight (MW) < 1 kDa in both south waters had the highest THMFP. The results of cluster analysis showed that the parameters of fractions including DOC percentage (DOC%), UV(254)%, SUVA(254) (specific UV(254) absorbance) and THMFP were better for representing the differences of DOM from the studied waters than specific THMFP (STHMFP). The weak correlation between SUVA(254) and STHMFP for either size or XAD fractions suggests that whether SUVA(254) can be used as an indicator for the reactivity of THM formation is highly dependent on the nature of organic matter.
WOS记录号	WOS:000255627200030
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22286]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Wei, Qunshan,Wang, Dongsheng,Wei, Qia,et al. Size and resin fractionations of dissolved organic matter and trihalomethane precursors from four typical source waters in China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2008,141(2015-01-03):347-357.
APA	Wei, Qunshan,Wang, Dongsheng,Wei, Qia,Qiao, Chunguang,Shi, Baoyou,&Tang, Hongxiao.(2008).Size and resin fractionations of dissolved organic matter and trihalomethane precursors from four typical source waters in China.ENVIRONMENTAL MONITORING AND ASSESSMENT,141(2015-01-03),347-357.
MLA	Wei, Qunshan,et al."Size and resin fractionations of dissolved organic matter and trihalomethane precursors from four typical source waters in China".ENVIRONMENTAL MONITORING AND ASSESSMENT 141.2015-01-03(2008):347-357.