Biogas production results in two products - biogas and digestate. Anaerobic digestion involves biogas production via the microbial degradation of organic compounds in the absence of oxygen. It reduces the bulk of organic matter to be disposed, generates digestate rich in nutrients that can be of agricultural value, and produces biogas rich in methane which can be used as fuel directly or can be converted to Compressed Natural Gas (CNG) and Liquefied Gas (LNG).