Abstract:
Urbanization, population growth
industrialization and the development of consumption
patterns produced accumulation of enormous quantities
of waste with very high environment risk because, in the
process of fermentation releases in atmosphere an
impressive quantity of biogas (mean 500 m3
N methane
resulting from a tone of organic waste
fermentation).Anaerobic digestion (AD) of organic waste
provides the possibility of obtaining renewable energy,
biogas, mainly composed of 65-70% CH4 (a gas up to 8
times more pollutant than CO2), 25 -30% CO2, and
small amounts of N2, H2, H2S, water vapor and other
gases. This gas stalled in waste, captured and used, can
become a tremendous source of energy, being almost
inexhaustible
