Potential assessment on biogas production by using livestock manure of large-scale farm in China

In order to determine the discharge of livestock poultry, the productive potentials of biogas and the distribution of scale farms in China, this paper used the statistical data of 2009 to establish the estimation of annually discharge of livestock poultry and parameters of estimation in China, and estimated main annually discharge of livestock poultry, the productive potentials of biogas and the reduction potentials of greenhouse gases. The result showed that the total manure emission of the large-scale farm was 837 million tons in 2009, annual biogas production potential is about 47.21 billion m3 and the reduction potential is 190 million tons CO2. Pigs, cows and beef cattle farming are the main manure sources in China, and manure emission mainly distribute in north-east area, north area and north-west area. The results can provide basis for decision making to control pollution of the large-scale farm.