Volume : III, Issue : V, May - 2014

Study of Hydrolytic Non Methanogenic Bacteria from Substrates and Biogas Digester Effluent

H. V. Deshmukh

Abstract :

Biogas Production from weed and agro industrial wastes is a promising source for energy.  It is a renewable and clean energy source. Biogas production takes place in three stages involving different types of microorganisms .The present work includes the study of different types of bacteria found on substrates and in digester effluent and their role in biogas production. The untreated weed biomass and distillery waste was used as sole substrate by step wise removal of dung. Experiments were carried out in 4–L digester and scale up was carried out in 25, 50 and 100–L digesters. Amount of biogas production was 467.30L/kg BOD/day with 62.32% methane in 100–L digester. SPC of bacteria was determined from substrates and 100–L digester effluent.  Weed biomass, distillery waste and dung slurry shows 24, 14 and17 bacterial isolates respectively. They were identified up to species level by using standard methods. In all 13 types of bacteria were  reported from substrates and out of them 10 types were  found in effluent showing that all the bacteria present in digester were came from the substrates. They play important role in biogas production. Three types of bacteria present on substrates were not found in effluent this may be due to environmental conditions prevailing in digester may not be suitable for the growth of these bacteria

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

H.V. Deshmukh Study of Hydrolytic Non Methanogenic Bacteria from Substrates and Biogas Digester Effluent International Journal of Scientific Research, Vol.III, Issue. V, May 2014

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