Formation potential of halogenated C-, N-disinfection by-products from chlorination of four selected amino acids in drinking water

被引：0

作者：

Lu, Jinfeng ^{[1
,2
]}

Liu, Xuanchen ^{[1
]}

Feng, Ying ^{[1
]}

An, Yiran ^{[1
]}

Guo, Hao ^{[1
]}

Zhao, Hongchen ^{[1
]}

Zhou, Xinyi ^{[1
]}

机构：

[1] College of Environmental Science and Engineering, Nankai University, Tianjin

[2] Key Laboratory of Pollution Processes and Environmental Criteria of Ministry of Education, Nankai University, Tianjin

来源：

Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2015年 / 48卷 / 07期

关键词：

Amino acids; Disinfection by-products; Haloacetic acids (HAAs); Trichloronitromethane (TCNM); Trihalomethane (THM);

D O I：

10.11784/tdxbz201403024

中图分类号：

学科分类号：

摘要：

The aim of this work was to investigate the formation potential of halogenated carbonaceous disinfection by-products (C-DBPs) and nitrogenous disinfection by-products (N-DBPs) of natural amino acids with different characteristics. Four typical natural amino acids with different structures were selected to investigate the formation potential of trihalomethane (THM), haloacetic acids (HAAs) and trichloronitromethane (TCNM) during chlorination. Results showed that these four amino acids are not the precursors of the THMs as their low formation potential, while they are the main precursors of the HAAs with much higher formation potential. Tryptophan, with the side chains of indole ring, is the most important precursors of trichloroacetic acid and TCNM. Glycine, with side chains of aliphatic structure, generated chloroacetic acid more easily concentration and the highest formation potential of HAAs. However, threonine with the side chains of the hydroxyl groups structure had the least formation potential of HAAs, and the alkaline amino acids-lysine couldn't be the precursor of TCNM because of its weaker formation potential of TCNM. ©, 2015, Tianjin University. All right reserved.

引用

页码：632 / 636

页数：4

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