Abstract

Biogas is the mixture of gases produced by methanogenic bacteria while acting upon biodegradable materials in an anaerobic condition. It was observed that addition of char coal improved the quantity of biogas generated and also fastened the acid and methane forming stage during biometharization. In this study a comparative study of biogas production from goat dung was conducted under the same operating condition. 10 g of catalyst (char coal), 100 g goat dung was mixed with 700L of water. Biogas production was measured for a period of 5 weeks with an average temperature of 33.4⁰C production started on the five days of first week and obtained maximum value on the fourth week. It shows that species of Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, Citrobacterpolyxa, Bacillus subtilis, Staphylococcus aureus and Bacillus brevis have the ability to degrade harmful organic waste and convert  it to useful product.