Elc Curve Based On Water-saving And Emission Reduction And Eco-industrial Classification Study

Water resource of China is short,and the level of average water per person is only 29%of the world.Its time and space distribution is non-uniform.As a result of the unreasonable use for several years,our country is facing "much water,little water,dirty water,muddy water".Therefore,our country proposes that we should build resource-efficient and environment friendly society according to the sustainable development idea.Our gogal is that water consumption of the unit industry increasing value reduces 30%,and the main water environment pollution(COD) reduces 10%in 2010.In order to achieve the goal,we must change the economic growth way and optimize the industrial construction,which is the essential measure and inevitable selection to build the environment friendly industry.Industrial structure adjustment not only includes the first,the second, and the third industry,but also includes the second industry internal structure.This paper selects the industry to analysis,because the industry is the sector that consumes the most resources,causes the most serious environmental pollution,and haves the biggest saving resource potential.The paper receives support of National Natural Science Foundation(40271052) and builids "environmental learning curve"(ELC) of our country's provincial water consumpution and COD emission by technology of numerical model,according to collecting the data of water consumption and COD emission of every provinces and industry. In the one hand,the paper calculates the potential of saving water and reducing emission and analyzes it's time and space distribution.In the other hand,the paper determines the green gap and degree of ecological realization of our country's water consumption and COD emission based on the China's ecological province(ecological city) construction standards.At last,the paper reclassifies the industrial sectors,which provides foundation for adjusting industrial sectors.The main contents and conclusions are as followings:The first one,the paper particularly introduces the "learning curve"(LC) and "environmental learning curve", including their's meanings and forms.The ELC curves of every province's water consumption are established, using the chopping board data in 1998-2005 of theirs.Then the paper analyzes the relation between GDP per person and the water consumption of every person and 10~4 value of output,which reveals the relation of economic development and water consumption.At last,the paper calculates the saving water potentials in different periods and analyses their time and space distribution according to the model of ELC.The second one,based on the chopping board data in 1998-2005,the paper analyses the COD emission per 10~4 RMB and per person and builds the ELC of every province.Then the paper reveals their regional difference and analyzes COD environmental load and reducing potentials of different periods,which provides scientific basis for realizing the reducing emission goal of the "11 th five-year plan".The third one,the paper introduces the meanings and models of the green gap and degree of ecological realization The peper determines the green gap and degree of ecological realization of our country's water consumption and COD emission based on the data of every province in 2005.Last,the paper analyses the special distribution.The fourth one,based on the data of different industrial professions in 2005 year,the paper classifies the forty industrial departments,embarking on the water consumption and COD discharge double regulation.The results show that they can be divided into three types based on the water consumption and COD mission per 10~4 RMB Yuan.One is low water consumption and low pollution,the other is high water consumption and low pollution, and the third is high water consumption and high pollution.The new industrial classification provides basis for adjusting industrial sectors and reducing water pollution.The innovations of this paper are as followings.The fast oriels that the paper establishes the ELC of water consumption and COD emission,analyses the time and space change of saving water and reducing pollution potentials,which are calculated by the models.The second one is that the paper determines the green gap and degree of ecological realization of our country's water consumption and COD emission.The last one is that classifies the forty industrial departments,embarking on the resource and environment double regulation.