Microbial removal of sulfur dioxide from a gas stream with net oxidation to sulfate |
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| Authors: | Dasu Badri N. Sublette Kerry L. |
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| Affiliation: | 1.Dept. of Chemical Engineering, University of Tulsa, 600 South College Ave., 74104, Tulsa, OK
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| Abstract: | A study has been conducted of the feasibility of utilizing the sulfate reducing bacteriumDesulfovibrio desulfuricans and the chemoautotrophThiobacillus denitrificans as a basis of a microbial process for the removal of sulfur dioxide from a gas with net oxidation to sulfate. In reactors-in-series, SO2 was reduced to H2S in the first stage by D.desulfuricans. The H2S was then stripped with nitrogen and sent to a second stage where it was oxidized to sulfate by T.denitrificans. A sulfur balance demonstrated complete reduction of SO2 to H2S in the first stage and complete oxidation of H2S to sulfate in the second stage. |
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| Keywords: | KeywordHeading" >Index Entries Sulfur dioxide NOx Thiobacillus denitrificans sulfate reducing bacteria flue gas desulfurization |
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