| The petrochemical industry plays an important role in the economy.As one of the key industries of national economy,the value added of petrochemical industry is keeping increased to reach nearly 6%in national GDP.However,petrochemical industry is a high energy consuming and polluting industry.The waste water,waste gas and solid waste produced by chemical account for 22%,8%and 12%of the total industrial waste per year.It is a big challenge that how to evaluate the development of petrochemical industry in such a sustainable background for both research and practice.This dissertation takes petrochemical industry as case study to discuss the industrial eco-efficiency evaluation theory and method.First establish a petrochemical industry eco-efficiency indicator system by literature reviews,specialists,surveys and comparation of existing researches.Second,establish carrying capacity model to evaluate individual petrochemical industry.The model is testified by a typical case study in Dalian.Finally, establish comparative eco-efficiency evaluation system of petrochemical industry which is based on Data Envelopment Analysis.The main contribution of this research can be concluded in three aspects:(1) Establish an indicator system based on Chinese petrochemical industry's development as the first research in this area.Different with current researches of industrial eco-efficiency indicators,this research bases on summarizing all existing eco-efficiency and tries to establish an eco-efficiency evaluation system.The petrochemical industry eco-efficiency indicator system composes two levels indicators which are stating indicators and variable indicators.The stating indicators are mainly based on researches from famous organizations such as WBCSD which can ensure this research a leading position.The variable indicators are based on suggestion from experts from the industries and international advanced researches on eco-efficiency indicator systems and sustainable indicators which make the indicators are suitable for Chinese petrochemical industries.The research can be the first academic attempt in this area so that it has relatively high academic value.(2) Establish petrochemical industry eco-efficiency evaluation model based on carrying capacity analysis which. Different with existing industry eco-efficiency researches which are focus on motivation and strategy,this research tries to apply carrying capacity for industry eco-efficiency evaluation model.The industry carrying capacity model uses a three-dimensioned space describe the resource aspect,economic aspect and environmental aspect of the industry.It has a better understanding of the eco-efficiency concept proposed by WBCSD which can be a useful tool for industry to evaluate eco-efficiency from sustainability aspect and developed new application field of carrying capacity theory.(3) Establish relative eco-efficiency evaluation model which is based on Data Envelopment Analysis.Different with existing industry eco-efficiency evaluation methods,the method in this research is based on Data Envelopment Analysis which can describe the multiple inputs and multiple outputs character.The model used in the research can not only evaluate the relative eco-efficiency of different petrochemical industries but also can compare the difference between economical efficiency and eco-efficiency and suggest improvements.It developed new application field of DEA model and contributes on industry eco-efficiency evaluation method.Also it is a more effective method for industries to self evaluates their sustainability so that it has a good academic value to improve sustainability.
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