CATALYTIC AUTOXIDATION OF HYDROGEN-SULFIDE IN WASTE-WATER

被引：64

作者：

KOTRONAROU, A ^{[1
]}

HOFFMANN, MR ^{[1
]}

机构：

[1] CALTECH,WM KECK LABS,PASADENA,CA 91125

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1991年 / 25卷 / 06期

关键词：

D O I：

10.1021/es00018a021

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The catalytic effectiveness of cobalt (II)-4,4',4",4'"-tetrasulfophthalocyanine (Co(II)TSP) for the autoxidation of hydrogen sulfide, S(-II), in wastewater was investigated. At pH 7 and 25-degrees-C the rate of S(-II) oxidation is first order with respect to [S(-II)]. A fractional order on the catalyst was observed. At oxygen concentrations of 15-200-mu-M the oxygen dependence can be described by simple Michael-is-Menten kinetics with K = 65-mu-M. The uncatalyzed oxidation of sulfide by molecular oxygen was found to be faster in wastewater than in clean water. This difference was attributed to microbial oxidation of S(-II) and to catalytic action of transition metals present in wastewater.

引用

页码：1153 / 1160

页数：8

共 26 条

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