What is BioGas?    Biogas is a product of an anaerobic process, a metabolic process that happens without the presence of oxygen by bacteria in which the organic waste dissembles.    Which gases it contains?   Methane  ( CH 4 )   Carbon dioxide  (CO 2 )  Hydrogen sulfide (H 2 S)  Ammonia (NH 3 )  Others          Can we use the BioGas as is?  Yes, we can use the BioGas as is, but  we might not  use it to produce electrical energy!    I don't understand...    What should we do?  We should try to extract other gases so the Methane  ( CH 4 ) gas will form a high percent ( +90% ) in the BioGas.    Why?   Matter of Safety.  Lower damage to the environment, less pollution.  Lower damage to the instruments which produce the energy production.  Higher productivity.