Conversion of hydrogen sulphide by acidophilic bacteria |
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| Authors: | Hector M Lizama Bruce M Sankey |
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| Institution: | (1) Imperial Oil Resources Ltd., Research Centre, 3535 Research Rd. N.W., T2L 2K8 Calgary, Alberta, Canada;(2) Present address: Exxon Research and Engineering Co., Rt. 22 East, 08801 Annandale, N.J., USA |
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| Abstract: | Conversion of hydrogen sulphide (H2S) by the bacterium Thiobacillus thiooxidans to sulphur or sulphate was demonstrated in a continuous column contacter using a countercurrent flow of gas and liquid medium. The initial conversion to sulphur was much faster than subsequent oxidation to sulphate, allowing for removal of elemental sulphur. The rate of H2S removal increased with available surface area in the column bed and with time. The number of bacteria in the column increased very slowly with time, placing great importance on the initial concentration of bacteria in the column.
Correspondence to: H. M. Lizama |
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