title: Microbial reduction of sulfur dioxide with pretreated sewage sludge and elemental hydrogen as electron donors.
abstract: It has been demonstrated tht heat- and alkali-pretreated-sewage sludge may serve as an electron donor and carbon source for SO2 reduction by Desulfovibrio desulfuricans. A continuous D. 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 bacterium Desulfotomaculum 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.
authors.affiliation: Center for Environmental Research and Technology, University of Tulsa, OK 74104.
authors.forename: V
authors.initials: V
authors.lastname: Deshmane
authors.forename: C M
authors.initials: CM
authors.lastname: Lee
authors.forename: K L
authors.initials: KL
authors.lastname: Sublette
mesh_terms: D003901:Desulfovibrio / Q000378:metabolism*; D004579:Electron Transport; D006859:Hydrogen / Q000378:metabolism*; D010084:Oxidation-Reduction; D012722:Sewage; D013458:Sulfur Dioxide / Q000378:metabolism*; D016999:Sulfur-Reducing Bacteria / Q000378:metabolism
chemical_list: D012722:Sewage; D013458:Sulfur Dioxide; D006859:Hydrogen