|Class 12 Biology Microbes In Human Welfare||Microbes in the production of biogas|
Biogas is a mixture of gases (containing predominantly methane) produced by the microbial activity.
Certain bacteria grow anaerobically on cellulosic material and produce large amount of methane along with CO2 and H2 which are collectively called as methanogens.
One common methanogen is Methanobacterium
These bacteria are commonly found in the anaerobic sludge during sewage treatment and in the rumen of cattle to digest cellulose in the food of the cattle , thus the excreta of cattle, commonly called gobar can be used for generation of biogas, commonly called gobar gas.
Fig. biogas plant