A carbon emission model for domestic waste landfill mining and reuse and its applications
A carbon emission model for the full life cycle of domestic waste landfills was constructed by using the carbon emission factor method.The carbon emissions of unit mass waste were calculated under three scenarios:'keep do-nothing'scenario,'waste to material'scenario and'waste to energy'scenario.This model explored the primary factors driving carbon emission reduction and the influence of carbon emission reduction in mining and reuse scenarios,and investigated the potential for carbon emission reduction through landfill mining and reuse as compared to the preservation of the landfill in'keep do-nothing'scenario.The above results show that the carbon emission of the'waste to material'scenario is less than the'waste to energy'scenario;the carbon emission reduction in the'waste to material'scenario increases with the increase of the plastic recovery rate,and the carbon emission reduction in the'waste to energy'scenario increases with the increase of the heat treatment amount of refuse derived fuel;the carbon emission reduction potential in the'waste to material'scenario of the simple landfill is the best,up to-495 kgCO2eq/t.These conclusions can provide certain reference for the assessment of carbon emission reduction potential of landfill mining and reuse in China.
municipal solid wasteper unit mass of landfill wastelandfill mining and reusematerial and energy recoverycarbon emission modelcarbon emission reduction
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