Biogas/ Gobargas is of more important in this days energy
resources. Production of biogas depend on using of waste and
organic feedstock matter that provides an excellent solution for
organic waste management. There are different parameters those
disturb the yield of biogas by anaerobic digestion. .Biogas is a mixing
of different gases that is an outcome of anaerobic (absence of air)
digestion. It consists mainlymethane (CH4) and carbon dioxide
(CO2) which are the main greenhouse-gases and other different
impurities. The substrate for anaerobic digester is a different kindof
organic waste means it reduces a load of disposal of organic load of
wastes due to the uncontrolled open dumping of organic discarded
waste. There are different diseases and very bad odors during the
degradation of waste. This review paper analyses different factors
those affect the biogas output rate including the usage of feedstock
temperature, hydraulic retention time, C/N ratio, pH value, mixing,
feedstock loading rate, agitation