The Research On Municipal Solid Waste Management Program Based On LCA

Today, while we are enjoying increasing comfortable lives produced by modernization, large numbers of natural resources have been consumed, and tons of kinds of wastes have been produced. Municipal Solid Waste (MSW) is emitted onto the earth. As the result, it not only occupies mass of lands, but also pollutes the environment seriously, and greatly threatens mankind's survival space and environment. In the background of environmental and resources protection in international scale, environmental pollution and resources waste made by MSW have got increasing concerns and become a major problem. Solid Waste is listed as an important environmental issue by the UNEP. Many countries have initiated to deal with MSW.As an environmental management tool with application values, Life Cycle Assessment (LCA) can evaluate environmental impacts from "cradle to grave"of the whole process of the system studied on, as well as analyze quantitatively on environmental conflict. LCA is a whole-process environmental management tool and the function of LCA for MSW is to minimize the environmental impact of MSW from production to treatment during the whole process, meanwhile, the balance in every stage for environmental impact is considered.Research methods combining quantitative and qualitative analysis are adopted, and LCA is used for a systematic study on MSW management. The thesis uses LCA to assess the environmental impact of MSW in our country, and further adopt AHP to calculate weights in the assessment. In the end of the thesis, based on the outcome of LCA, the author establishes environmental ideal model of MSWM. According to China's realities and different city scale, the thesis also put forward three models for MSW management, which provides decision support for MSW administration among cities at different-scale.