Biogas is a mixture of different gases like methane (63%) with CO2 and hydrogen. The agricultural wastes, manure, municipal wastes, plant materials, sewage sludge, food waste, etc., form the raw materials for the production of biogas. In biogas production, the organics is converted into gas and organic fertilizer by microbes under anaerobic conditions.
Methanogens are methane-producing bacteria, responsible for biogas production. Methanobacterium is the common bacteria used for the production of biogas, which bums with a blue flame. The bacteria are present in the anaerobic sludge and rumen of the cattle.
The excreta of cattle is called ‘Gobar’, which forms the inoculum of the anaerobic process in the biogas unit. The biogas/ gobar gas is also generated by the anaerobic decomposition of cattle dung, by the methanogenic bacteria.
