Two stage methanogenesis of glucose byAcetogenium kivui and acetoclastic methanogenic Sp. |
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Authors: | M. Ibba G. H. Fynn |
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Affiliation: | (1) Dept. Biochemistry and Applied Molecular Biology, UMIST, P.O. Box 88, M60 1QD Manchester, UK;(2) Present address: Dept. Biotechnology, K681.1.03, Ciba-Geigy A.G., 4002 Basel, Switzerland |
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Abstract: | Summary A continuous two stage anaerobic digestion process was established using a homoacetogen,Acetogenium kivui, as the acidogenic organism and an acetoclastic culture for the methanogenic stage. In continuous culture,A.kivui fermented 83% of a glucose carbon source to acetate at a critical dilution rate of 0.13/h. The effluent acetate from this culture was readily utilised by an acetoclastic methanogenic culture enriched from sewage sludge. The long term stability of this system was demonstrated under a range of conditions, and the potential process advantages discussed. |
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