Chloramines .5. Products and implications of the chlorination of lysine in municipal wastewaters

被引：43

作者：

Conyers, B ^{[1
]}

Scully, FE ^{[1
]}

机构：

[1] OLD DOMINION UNIV,DEPT CHEM & BIOCHEM,NORFOLK,VA 23529

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1997年 / 31卷 / 06期

关键词：

D O I：

10.1021/es960534t

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The chlorination reactions of lysine (Lys) in water and wastewater were studied. 5-Chloraminopentanal (VIII) and 5-dichloraminopentanal (IX) are the main products at Cl-2/Lys molar ratios of I and 2 after 30-min contact time. Formation of N,N-dichlorolysine (V) was suggested but not confirmed. 5-Dichloramino-N-chloropentanimine (XII) and 5-dichloraminopentanenitrile (XV) are the main producs at Cl-2/Lys molar ratios of 4 and 5. At a Cl-2/Lys molar ratio of 3, a compound believed to be 5-chloramino-N-chloropentanimine (XI) was observed, but its yield was small. Half-lives of lysine chlorination products in model solutions were found to be as follows: 0.8 (V), 1.5 (XI), 23 (XII), >45 (VIII and IX), and 210 h (XV). The concentrations of lysine and its chlorination products after 30-min contact time were determined in a primary municipal wastewater. All have the potential to interfere with the proper measurement of disinfection levels in chlorinated wastewaters.

引用

页码：1680 / 1685

页数：6

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