Carbon Emission Accounting and Emission Reduction Suggestions for Waste Incineration under the Classification Policy——An Example of an Incineration Plant in Shanghai
Based on the actual monitoring data of incoming waste from an incineration plant in Shanghai,carbon emissions from incineration and power generation are accounted under different classification levels,thus exploring the impact of waste classification policy on waste components,properties and carbon emissions.The results of the study show that the proportion of food waste in the incoming waste decreased,and the proportion of rubber and plastic waste and lower heating value increased after classification.As the classification level increased,the mineral carbon incineration emission per unit mass of waste rose,while the power generation substitution emission increased,with the total carbon emissions elevated.Only the low-level classification scenario resulted in lower net emission compared to the pre-classification scenario.Using mainstream accounting methods,it was found that the total carbon emissions,emission intensity per unit mass of waste,and emission intensity per unit mass of mineral carbon in this incineration plant all increased with the degree of classification.Based on the study results,recommendations were made based on the separation of food waste,such as improving incineration technologies,screening and selecting appropriate reuse methods for rubber and plastic,and pre-treating to remove moisture and organic matter prior to incineration,with the purpose of improving the efficiency of waste incineration and further realizing the carbon emission reduction.
waste classificationincineration and power generationcarbon emissionwaste component