Reductive dehalogenation of chloroanilines in anaerobic estuarine sediment

被引：16

作者：

Susarla, S ^{[1
]}

Yonezawa, Y ^{[1
]}

Masunaga, S ^{[1
]}

机构：

[1] YOKOHAMA NATL UNIV,INST ENVIRONM SCI & TECHNOL,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

ENVIRONMENTAL TECHNOLOGY | 1997年 / 18卷 / 01期

关键词：

chloroanilines; transformations; dechlorination; first-order rate constant and metabolites;

D O I：

10.1080/09593331808616514

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The reductive dehalogenation of chloroanilines (CAs) was investigated in anaerobic sediment/water systems. The sulfate content of the interstitial and overlaying waters was approximately 20 mmoles 1(-1) and the sediment was apparently sulfidogenic. The CAs exhibited first-order disappearance kinetics with the rate constants ranging from 0.012-0.005 day(-1) or half-lives between 40 and 672 days. Pentachloroaniline TPeCA), 2,3,4,5-tetrachloroaniline (2,3,4,5-TeCA) and 3,4,5-trichloroaniline (3,4,5-TCA) were transformed by the sequential removal of halogen from the para and ortho positions. The disappearance of the parent compound and accumulation of metabolites were simulated using a first-order branched kinetic model.

引用

页码：75 / 83

页数：9

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