Research Article

A Quantitative Study on the Benefit of Various Waste Classifications

Table 5

Life cycle inventories in the operation stage of each scenario (per tonne of dry waste).

Waste treatment methodCategoryPollutantsEmissions

LandfillMaterial consumptionDiesel2.388 L
Electricity consumption0.42 kWh
Energy recovery−111.92 kWh
Water0.047 m3
Sand0.41 m3
Direct gas emissionsCH4233 kg
CO294.8 kg
SO20.8 × 10−2 kg
NOx4.44 × 10−2 kg
H2S0.29 × 10−2 kg
NH31.09 × 10−2 kg

IncinerationMaterial consumptionDiesel6.87 L
Electricity consumption152.73 kWh
Energy recovery−696.84 kWh
Water0.23 m3
Direct gas emissionsSO21.69 kg
NOx3.39 × 10−1 kg
NH31.84 kg

CompostEnergy consumptionDiesel1.75 L
Electricity19 kWh
CO20.678 kg
SO20.07 kg
Direct gas emissionsNOx4.29 × 10−2 kg
H2S0.04 × 10−2 kg
NH30.99 × 10−3 kg
HCl1.36 × 10−2 kg