bio gas definition
bio gas means a fuel gas produced from biomass or from the bio degradable fraction of waste, that can be purified to natural gas quality, to be used as bio fuel or wood gas;
bio gas means a gas created when organic matter like crop residues, swage and manure breaks down in an oxygen free environment (ferments) (mainly containing about 60 to 65% of methane). Anaerobic Digestion (AD) is a natural biological process where organic material is broken down by bacteria. It is similar to composting but differs in that it takes place in the absence of oxygen. AD is a 4-stage process of hydrolysis, acidification, aceto-genesis and methano-genesis.