Integrated Municipal Solid Waste Management And Life Cycle 3E Assessment Decision

With the fast development of economy, enhance of people'standard of living, increase of urban population and speed up of urbanization, the generation of municipal solid waste (MSW) has heavily risen. This not only brings a great harm on urban environment, but also hinders urban economic growth. Therefore, it is very crucial to build municipal solid waste management system in order to efficiently disposal MSW. Integrated Solid Waste Management (ISWM) condersiders the full range of waste streams to be managed and wiews the available waste management practices as Options from which waste managers can select the preferred option based on specific environment, economic and social considerations. But how to evaluate the waste management systems and manke decision from different strategies for treatment of MSW become very difficult for managers.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 and help MSW managers plan or design for the future development of more sustainable MSW management system.This paper discusses the LCA using on integrated solid waste management funded by Chunhui Project for national ministry of education which is feasibility study on solid waste management in Three Gorges areas and main towns. After fully reviewing the development and using of integrated solid waste management and the research of LCA using on solid waste management all over the world, the dissertation proposed that it is necessary to conduct the research on life cycle economic assessment. The integrated method of LCA and life cycle costing (LCC) was studied the integrated framework of LCA and LCC was proposed. Combining life cycle 3E (energy, environment and economy) assessment with multi attribute utility theory (MAUT), decision analysis methodology and model based on life cycle 3E assessment was developed. At last, MSW management system in Chongqing was studied as a case. The datails are sated below:The disseratation reviewed the status of the development and practice of integrated solid waste management and the research of LCA using in solid waste management all over the world and tracked the hot issues in LCA. After reviewed the application of LCA in the field of decision analysis and the achievement and shortage of LCA, the dissertation proposed it is necessary to conduct the research on life cycle economy assessment.To solve the problem of integrating LCA with economic assessment, the disseratation analyses the difference and the gap between LCA and life cycle cost analysis (LCCA), and the limitations reason of linking LCCA to LCA. The integrated framework of LCA and LCC was proposed which included time boundary, physical boundary, inventory data and impact assessment, and the life cycle 2E (energy and environment) assessment was extended to life cycle 3E (energy, environment and economy) assessment.Based on the research of LCA using on solid waste management and the methodology framenwork of LCA, the life cycle 3E assessment methodology used on MSW management was proposed in this dissertation whit the method of goal definition system boundary, inventory analysis and impact assessment etc. The indicators of life cycle energy, environment and ecomic were further researched and initial defined and the methods and steps of inventory data classification, characterization, valuation were discussed in detail.Reviewing the status of decision analysis based on life cycle assessment and referring to other research, the dissertation proposed that life cycle environment, energy, and economy performance were all required to study when decision analysis was conducted. The issue about the incommensurability, between the indicators of three aspects was resolved by the application of multi attribute utility theory. Finally, MSW management decision analysis model based on life cycle 3E assessment was developed, which could be used for selecting MSW management schemes and policy decisions as well as strategic decisions on MSW management system.Finally, MSW management system in urban Chongqing was studied as a case. In this part, firstly, life cycle 3E assessment was conducted on MSW management system in Chongqing, and then, decision analysis based on life cycle 3E assessment was completed. At last, the decision conclusions were made and suggestions were proposed based on decision analysis results.