Reference : Production of sulfur from gypsum as an industrial byproduct
Scientific journals : Article
Life sciences : Biotechnology
Production of sulfur from gypsum as an industrial byproduct
Hiligsmann, Serge mailto [Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Deswaef, Sophie [> > > >]
Taillieu, Xavier [> > > >]
Crine, Michel mailto [Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
Milande, Nicolas [BERTIN S.A. Tarnos, France > > > > > >]
Thonart, Philippe mailto [Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles >]
Applied Biochemistry and Biotechnology
Humana Press
Yes (verified by ORBi)
[en] gypsum ; biodegradation ; sulfate-reducing bacteria ; sulfide ; lactic acid ; acetic acid ; whey
[en] Biological sulfate reduction was investigated at the bench and pilot scales in order to determine optimum culture conditions. Efficient strains of sulfate-reducing bacteria (SRB) were selected by classical microbiological methods and by mutagenesis. Improvement factors, including stripping, scale-up, sulfate,and organic substrate concentrations, have been studied in batch bioreactors. Two types of pilot-scale bioreactors have been adopted, the first being completely mixed with free cells and the second having two stages with immobilized cells on a fixed bed. An overall bioconversion capacity of 11 kg/m(3) . d of gypsum and 1.2 kg/m(3) . d of dissolved organic carbon has been achieved in the two-stage bioreactor.
Centre Wallon de Biologie Industrielle
Union Européenne = European Union - UE = EU
Researchers ; Professionals ; Students ; General public

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