The Scientific World Journal / 2012 / Article / Tab 5

Research Article

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

Table 5

FE cost and GEin emissions of the conventional animal husbandry system.

MaterialsQuantityUnit (MJ/unit) (kg CO2-eq/unit)FE (MJ/yr)GEin (kg CO2-eq/yr)

PigstyCement kg/yr6.360.53
Lime kg/yr4.940.79
Hollow bricks kg/yr6.360.53
Steel kg/yr64.52.03
Feed kg/yr4.640.52
Drugs kg/yr1343.00
Disinfectant kg/yr46.91.68
Water ton/yr34.60.81
Electricity kWh/yr1352.82

FarmersCoal kg/yr29.563.2

FishpondLime kg/yr4.940.78
Bleach kg/yr46.91.68
Feed kg/yr4.640.52
Aerator $/yr32.42.24
Nitrogen kg/yr67.81.64
Phosphate kg/yr36.21.05


*Zhou [24].

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