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Catalytic autoxidation of hydrogen sulfide in wastewater

Kotronarou, Anastassia and Hoffmann, Michael R. (1991) Catalytic autoxidation of hydrogen sulfide in wastewater. Environmental Science and Technology, 25 (6). pp. 1153-1160. ISSN 0013-936X. https://resolver.caltech.edu/CaltechAUTHORS:20150813-105952539

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Abstract

The catalytic effectiveness of cobalt (II)-4,4’,4”,4’’’-tetrasulfophthalocyanine (Con^(II)TSP) for the autoxidation of hydrogen sulfide, S(-II), in wastewater was investigated. At pH 7 and 25 ºC 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 µM the oxygen dependence can be described by simple Michaelis-Menten kinetics with K = 65 µM. 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/es00018a021DOIArticle
http://pubs.acs.org/doi/abs/10.1021/es00018a021PublisherArticle
ORCID:
AuthorORCID
Hoffmann, Michael R.0000-0002-0432-6564
Additional Information:© 1991 American Chemical Society. Received for review May 30, 1990. Accepted February 11,1991. Publication Date: June 1991. We gratefully acknowledge the financial support of the County Sanitation Districts of Los Angeles County (CDS Contract 2966). Many thanks to Dr. Jochen Kraft for the preparation of the catalyst and his valuable contribution in the initial stage of this work. We also thank the reviewers of this article for useful comments and suggestions
Funders:
Funding AgencyGrant Number
Los Angeles County Sanitation District2966
Issue or Number:6
Record Number:CaltechAUTHORS:20150813-105952539
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150813-105952539
Official Citation:Catalytic autoxidation of hydrogen sulfide in wastewater Anastassia Kotronarou and Michael R. Hoffmann Environmental Science & Technology 1991 25 (6), 1153-1160 DOI: 10.1021/es00018a021
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59482
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:14 Aug 2015 15:52
Last Modified:03 Oct 2019 08:47

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