UTILIZATION OF WASTE FOR ENHANCEMENT OF BIOGAS PRODUCTION
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 1
Abstract
Anaerobic digestion of cattle dung and other household, industrial and agricultural wastes leads to the production of biogas. It is one of the most effective and economic way for the production of bio-energy from biomass. In the present investigation, compost, paddy soil, landfill waste and kitchen waste were used to develop the microbial inoculum for the enhancement of biogas production from cattle dung under semi-continuous digestion system. Fourteen digesters were set up. The samples were analyzed for dehydrogenase activity, cellulase activity, N, P, K content, total solids, volatile solids, total volatile fatty acids, carbon to nitrogen ratio and biogas production. The maximum biogas production (144.2 litres) was observed on supplementation of cattle dung with kitchen waste @ 5%, compost @ 5%, landfill waste @ 5% and paddy soil @ 5% on dry weight basis in semi-continuous anaerobic digestion. The dehydrogenase activity (1993.0 μg TPF/g sample/24 h) and cellulase activity (259.4 μg glucose/g sample/24 h) was observed at 8th week in digester D14. Total volatile fatty acids, total solids and volatile solids were found to decrease after 8 weeks of digestion. N, P and K content was found to increase whereas C/N ratio was found to decrease.
Authors and Affiliations
SHIKHA MEHTA, R. C. ANAND, KAMLA MALIK, NAVEEN KUMAR, SUJEETA 5
Keywords
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