title: Improvement of biogas production from vinasse via covalently immobilized methanogens.
abstract: Improvement of biogas production was realized by covalent immobilization of a methanogenic consortium onto a granulated polymeric support [poly(acrylonitrile-acrylamide)]. The growth kinetics of the immobilized consortium was investigated during a process of vinasse methanation, and a cell concentration increase from 12.3 mg g(-1) support to 52.1 mg g(-1) support was established. The methane yield reached 0.33 m3 kg(-1) CODr, the maximum yield on chemical oxygen demand (COD) removal being 92%. The inhibitory effect of oxygen was reduced by immobilizing the methanogenic consortium.
authors.affiliation: University of Chemical Technology and Metallurgy, Department of Biotechnology, Sofia, Bulgaria.
authors.forename: I G
authors.initials: IG
authors.lastname: Lalov
authors.forename: M A
authors.initials: MA
authors.lastname: Krysteva
authors.forename: J L
authors.initials: JL
authors.lastname: Phelouzat
mesh_terms: D001673:Biodegradation, Environmental; D019149:Bioreactors; D019605:Euryarchaeota; D007220:Industrial Waste; D014865:Waste Disposal, Fluid / Q000379:methods*; D014920:Wine
chemical_list: D007220:Industrial Waste