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Solid-Phase Biogas Production With Garbage or Water Hyacinth

Chanakya, HN and Borgaonkar, Sushama and Meena, G and Jagadish, KS (1993) Solid-Phase Biogas Production With Garbage or Water Hyacinth. In: Bioresource Technology, 46 (3). pp. 227-231.

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Abstract

Fermentations of market garbage and water hyacinth in laboratory-scale solid-phase fermenters operated in fed batch mode is reported. Solid-phase fermentation was effected by a daily sprinkling of a weekly-fed biomass bed with an aqueous suspension of biodegradative bacteria to initiate and sustain high levels of biogas production.Gas production rates greater than 0"5 fitres/fitre per day at specific gas yields of 250-300 fitres/kg total solids at residence times" between 150 and 250 days were obtained. Major methanogenic activity appeared to occur in the lower parts of the decomposing bed, therefore feeding couM be carried out on a once-weekly basis by opening the top of the fermenter and adding the untreated biomass feed, without deleterious effects on the overall gas yields or composition. The compaction of biomass feeds during decomposition permitted the use of high residence times without loss of space economy.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier science.
Keywords: Solid-state biogas digestor;urban garbage;water hyacinth; volatile fatty acids.
Department/Centre: Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited: 08 Jul 2008
Last Modified: 16 Feb 2012 06:57
URI: http://eprints.iisc.ernet.in/id/eprint/14835

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