The Scientific World Journal / 2012 / Article / Tab 3

Research Article

Nonrenewable Energy Cost and Greenhouse Gas Emissions of a “Pig-Biogas-Fish” System in China

Table 3

Direct GHG emissions of the “pig-biogas-fish” system.

Direct GHGCO2 (kg/yr)CH4 (kg/yr)N2O (kg/yr)

Pigsty12.00*
Biogas830.50**1.14***
Fishpond****646.8845.36

*IPCC [26].
**Biogas composition is considered as 70% CH4 and 30% CO2.
***Ma  and Nan [27].
****Xing et al. [28].

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