title: Evaluation of methanogenic activity of biogas plant slurry on ossein factory wastes.
abstract: The objective of the present work was to evaluate the ossein factory wastes, which include primary clarified bone waste (PCBW) and sinews for methane production, by monitoring methanogenic activity of predigested biogas plant slurry. A specific methanogenic activity of biogas plant slurry (anaerobic seed) was measured at 38 degrees C using different proportions of ossein factory wastes in an assay medium. The pH of slurry was intensively maintained until course of digestion. A moderate proportion of both substrates showed a maximum methane production at 20 days of incubation in batch mode. However, a maximum cumulative methane yield achieved by biogas plant slurry on PCBW was low as compared to sinews. The best organic matter degradation was achieved even at a high proportion of ossein factory wastes used in digesters. These substitutes would be useful, without seriously reducing total gas production, for methane production if they partially mixed with cattle dung. As a result of this preliminary study, we suggest that ossein factory wastes are potential alternative sources for biogas production in ossein factory.
authors.affiliation: Biogas Research Centre, Gujarat Vidyapith, Sadra-382 320, Gujarat, India. pchellapandi@gmail.com
authors.forename: P
authors.initials: P
authors.lastname: Chellapandi
authors.forename: L
authors.initials: L
authors.lastname: Uma
mesh_terms: D056804:Biofuels; D001842:Bone and Bones / Q000378:metabolism*; D007220:Industrial Waste; D008697:Methane / Q000378:metabolism*; D018505:Waste Management
chemical_list: D056804:Biofuels; D007220:Industrial Waste; D008697:Methane