Anaerobic Digesters are devices that promote the decomposition of manure or digestion of the organics in manure to simple organics and gaseous biogas products. It is an industrial system that harnesses the natural process to treat waste & produce biogas that can be used to power electricity generators, provide heat and produce soil improving material. They are also fed with specially grown energy crops to boost biodegradable content and hence increase biogas production. The main products of anaeroic digesters are biogas and innocuous digested sludge solids. There are three primary types of anaerobic digesters like covered anaerobic lagoon, complete mix as well as plug flow type that are used for livestock farms. The purpose of this digester is to biologically destroy a significant portion of the volatile solids in sludge and to minimize the putrescibility of sludge.