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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Dasu, B.N., Sublette, K.L. Microbial removal of sulfur dioxide from a gas stream with net oxidation to sulfate. Appl Biochem Biotechnol 20, 207–220 (1989). https://doi.org/10.1007/BF02936483
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DOI: https://doi.org/10.1007/BF02936483