Reference : Investigation of anaerobic digestion in a two-stage bioprocess producing hydrogen and me...
Scientific congresses and symposiums : Unpublished conference
Engineering, computing & technology : Energy
Life sciences : Biotechnology
Life sciences : Microbiology
http://hdl.handle.net/2268/78753
Investigation of anaerobic digestion in a two-stage bioprocess producing hydrogen and methane
English
Hiligsmann, Serge mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Hamilton, Christopher [Université de Liège - ULg > > Centre Wallon de biologie industrielle >]
Beckers, Laurent mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Masset, Julien mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Thonart, Philippe mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles - Bio-industries >]
17-Nov-2010
12
No
No
International
15th European Biosolids and Organic Resources Conference
15-17 novembre 2010
Aqua Enviro Technology Transfer
Leeds
United Kingdom
[en] biological production ; hydrogen ; anaerobic digestion ; methane ; carbohydrates
[en] Hydrogen has received wide attention in the last decades as a clean energy vector. The major
advantage of energy generation from hydrogen is the near-zero carbon emissions, since the
utilization of hydrogen, either via combustion or via fuel cells, results in pure water. Recently,
there has been increasing interest on the biological production of hydrogen gas from renewable
biomass such as carbohydrates from agriculture or agro-food industries. This specific anaerobic
digestion is called dark fermentation and is involved in the classic anaerobic digestion producing
methane. Indeed, in a two-step process, i.e. when acido- and aceto-genesis are carried out in a
different bioreactor than methanogenesis, it is feasible to generate separated biogas flows
containing either H2 or CH4 depending on specific operating parameters.
This paper deals with the comparison of the first stage performances whether operated in
optimum conditions for H2 production with a mixed culture or a pure Clostridium butyricum
strain. Hydrogen yields of about 1.75 and 2.3 mol H2/mol glucose were achieved respectively.
The metabolites, mainly acetate and butyrate, contained in the spent medium were efficiently
converted to methane in a second anaerobic digester with a methane yield of about 170 ml/g
COD initially fed in the first stage.
Centre Wallon de Biologie Industrielle
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Action de Recherches concertées ARC 07/12 04- ULg- Communauté française ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE ; Université de Liège - subsides "Missions scientifiques" ; Région wallonne : Direction générale des Relations extérieures - DGRE
Etude de la production d'hydrogène par les bactéries anaérobies chimiotrophes (dark-fermentation)
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/2268/78753
http://www.microh2.ulg.ac.be
http://cwbi.fsagx.ac.be/

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