Article (Scientific journals)
Production of sulfur from gypsum as an industrial byproduct
Hiligsmann, Serge; Deswaef, Sophie; Taillieu, Xavier et al.
1996In Applied Biochemistry and Biotechnology, 57-8, p. 959-969
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Keywords :
gypsum; biodegradation; sulfate-reducing bacteria; sulfide; lactic acid; acetic acid; whey
Abstract :
[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.
Research center :
Centre Wallon de Biologie Industrielle
Disciplines :
Biotechnology
Author, co-author :
Hiligsmann, Serge ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles
Deswaef, Sophie
Taillieu, Xavier
Crine, Michel ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires
Milande, Nicolas;  BERTIN S.A. Tarnos, France
Thonart, Philippe ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles
Language :
English
Title :
Production of sulfur from gypsum as an industrial byproduct
Publication date :
1996
Journal title :
Applied Biochemistry and Biotechnology
ISSN :
0273-2289
eISSN :
1559-0291
Publisher :
Humana Press, Totowa, United States - New Jersey
Volume :
57-8
Pages :
959-969
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
REWARD
Funders :
UE - Union Européenne [BE]
Available on ORBi :
since 24 September 2009

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