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Oxidation of hydrogen sulphide in sour gas by Chlorobium limicola

Paper ID Volume ID Publish Year Pages File Format Full-Text
18076 42711 2007 4 PDF Available
Title
Oxidation of hydrogen sulphide in sour gas by Chlorobium limicola
Abstract

The aim of this work was to assess the potential for bacterial oxidation of hydrogen sulphide as a purification method of sour gas. Using a continuous culture of Chlorobium limicola, high efficiencies of oxidation of both soluble and gaseous sulphide were achieved, with efficiencies for the latter exceeding 95%. Sulphide added as aqueous sodium sulphide was converted to sulphur and sulphate with almost total removal of the initial 100 mg S l−1 within 24 h. Gaseous sulphide was oxidized at an efficiency of 95% (approximately 3 mmol S h−1 (unit biomass Abs)−1) over 1 h runs at a gas flow rate of 60 ml min−1. With a sulphur recovery system to prevent sulphur accumulation, an efficiency of 70% was maintained. Biological removal of sulphide represents a potentially important biotechnological process, with high potential for viable scale up.

Keywords
Chlorobium limicola; Sulphide oxidation; Sour gas; Continuous culture; Desulphurization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 41, Issues 6–7, 1 November 2007, Pages 702–705
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us