Microbial reduction of sulfur dioxide with pretreated sewage sludge and elemental hydrogen as electron donors |
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| Authors: | Deshmane Vinay Lee Cheng-Ming Sublette Kerry L. |
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| Affiliation: | 1.Center for Environmental Research and Technology, The University of Tulsa, 600 S. College Ave., 74104, Tulsa, OK
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| Abstract: | It has been demonstrated that heat- and alkali-pretreated sewage sludge may serve as an electron donor and carbon source for SO2 reduction byDesulfovibrio desulfuricans. A continuousD. desulfuricans culture was operated for 6 mo with complete reduction of SO2 to H2S. The culture required only minor amounts of mineral nutrients in addition to pretreated sewage sludge. It has also been shown that the sulfate-reducing bacteriumDesulfotomaculum orientis can be grown on H2 as an energy source, CO2 as a carbon source, and SO2 as a terminal electron acceptor. Complete reduction of SO2 to H2S was observed. |
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| Keywords: | KeywordHeading" >Index Entries Sulfur dioxide Desulfovibrio desulfuricans Desulfotomacululm orientis flue-gas desulfurization |
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