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1、 Papers Delivered at International Conference on Cleaner ProductionBeijing, China - September 2001 - Paper 12 of 30The Planning and Design of Eco-Industrial Parks in China Ding-jiang CHEN, You-run LI*, Jing-zhu SHEN and Shan-ying HUDepartment of Chemical Engineering, Tsinghua University, Beijing, 10
2、0084, P.R.China.Abstract: Projects of Eco-industrial Park (EIP) are initiated in China. In this paper three cases are introduced, which are carried out by the local authorities in corporation with the Industrial Ecology Center in Chemical Engineering Department of Tsinghua University. The projects a
3、re Zaozhuang EIP initiative in Shandong Province in North China, with key feature of transforming a traditional industrial zone to eco-industrial park; Quzhou EIP Initiative in Zhejiang Province in East China, with key feature of constructing web of material exchanges among dozens of chemical plants
4、 of various sizes; and Nanhai EIP initiative in Guangdong Province in South China, with key feature of developing environmental protection industry in a greenfield. The planning work focuses on identifying potential by-product exchanges, exploring possible water/energy cascading usage, modeling indu
5、strial symbiosis system, and developing EIP management information system.Keywords: Eco-Industrial Park, China1. Introduction Eco-Industrial Park (EIP) is an industrial system of planned materials and energy exchanges that seeks to minimize energy and raw materials use, minimize waste, and build sus
6、tainable economic, ecological and social relationships 1. A number of EIP initiatives are emerging in recent years and undergoing a fast development in many countries 2.China has experienced a rapid economic growth in the last twenty years. Now the country is facing a series of resource and environm
7、ent issues, which have blocked the economys healthy development. As an effective economy and environment win-win strategy, the EIP concept has begun to be serious in consideration by authorities and communities in some industrial regions in China. Several EIP projects are initiated by local authorit
8、ies, which are in cooperation with academic institutions.The Industrial Ecology Center in Chemical Engineering Department of Tsinghua University is active in the area of EIP research. The members of the center have taken part in three EIP initiatives in China since 1999. The projects are Zaozhuang E
9、IP initiative in Shandong Province in North China, with key feature of transforming a traditional industrial zone to eco-industrial park; Quzhou EIP Initiative in Zhejiang Province in East China, with key feature of constructing web of material exchanges among dozens of chemical plants of various si
10、zes; and Nanhai EIP initiative in Guangdong Province in South China, with key feature of developing environmental protection industry in a greenfield.2. Zaozhuang EIP Initiative Zaozhuang Industrial Park consists of 150 hectares of land, where more than ten enterprises are currently located in. Anch
11、or members include a coal based ammonia plant, a heat and power station and a cement mill. Other members are a carpet mill, a coke factory, a ceramic factory, a carbide factory, etc. A wastewater treatment plant and a residential area are located in the parks vicinity.Very few material linkages have
12、 existed among the members. Almost all the plants have their own boiler system which by-produce waste cinder and fly ash. They supply the solid wastes to the cement mill as raw material. The power station provides heat to the residential area in winter. The coke factory once tried supplying coke-ove
13、n gas to the ceramic factory as fuel for roasting ceramic products, but failed for technical reason.Potential linkages based on the existed linkages are needed for transforming the park from a traditional pattern to an eco-industrial one. After analyzing the input and output of the members and consu
14、lting references for technical feasibility, several potential linkages are identified as showed in Fig.1. The wastewater treatment plant can provide treated water to power station and ammonia plant to satisfy the large demand for cooling water, and at the same time, to save the scarce local water re
15、source. The power station can supply process steam to other members for shutting down the inefficiency small steam boilers, for which new investment is needed to rebuild the old steam supply system. The carbide factory can supply its slag to the power station to substitute part of the limestone for
16、desulphurization purpose. And gypsum, the product of desulphurization process, can be supplied to the cement mill as part of raw material.Figure 1 - Zaozhuang EIP InitiativeRecruitments are also considered. A new unit of CO2 gas fertilizer may helpful for utilizing the wasted CO2 gas release by the ammonia plant. The CO2 gas can also be supplied to a new unit in the carbide factory. With the gas and the carbide slag, the unit can produces light calcium carbonate as building mat
