摘要
立足资源和环境约束,对干旱区工业共生过程中链条的设计、水资源的优化利用进行了定性探讨,提出两个观点:干旱区需在确定支柱产业和重点行业的基础上再进行纵向主导产业链与横向耦合共生链的设计;通过促进农业节水用于工业、工业共生反哺农业、提高工业重复用水率来解决工业用水不足的矛盾。继而运用模糊数学建立了多目标模糊优化模型,对共生网络的优化进行了定量研究。所建模型以共生网络经济效益、社会效益、资源效益和环境效益的综合最优作为目标函数,以非线性的相对优属度作为权重系数,将资源瓶颈、环境污染排放总量控制目标等作为约束条件,来求解多目标问题,既科学表达了共生系统的复杂性,又充分体现了工业共生追求经济-环境双赢的内涵。实例应用则表明以上思路、模型与方法具有理论价值和实践意义。
Based on the restrictions of resources and environment, qualitative researches are carried on industrialsymbiosis-chains design and water-use optimization in arid areas. Two points are suggested： firstly, pillar industry and key industries should be clear before the longitudinal principal-chains and transverse coupling-chains of industry are prepared to design ; secondly, in order to solve the contradiction short of water in industry development effectively, agricultural water should be saved for industry, industrial symbiosis should be feed back to the agriculture and repetition rate of industrial water should be improved. The multi-objective fuzzy optimization model is estab- lished by fuzzy mathematics for the quantitative researches on industrial symbiosis networks. Maximum of synthetical benefits in economy, society, resources and environment is the subject of industrial symbiosis networks. Nonlinear relative membership degrees are taken as weighted coefficients. Resources limits, total emission controls of pollutants and so on are restriction conditions. This model expressed the complexity of symbiosis system scientifically, and incarnated the connotations well that industrial symbiosis pursued win-win between economy and environment. Shihezi City is located in the Manes River watershed, which belongs to the north-slope of the Tianshan Economy Belt, and it is the first national circular economy experimental city of Xingjiang. In this city, chemistry, cottonweaving, food, construction-material, agricultural equipment and energy sources are taken as six pillar industries. The longitudinal principal-chains and transverse coupling-chains of industry are designed based on the local prepon-derant resources, while the possibility and rationality of matter-energy reuse in time-space are considered adequately. Taking the industry park as a carrier, nine circular economy chains are formed. The optimization ideas of industrial-symbiosis-chains design in arid area are practiced well here. The opposite well-rounded chemistry chain（ including calcium carbide plant, power plant, chemical plant, plastic plant and cement plant） is chosen as an idiographic object to study the optimization outputs in 2009 with the multi-objective fuzzy optimization model above. The results indicate as follows ： （ 1 ） The optimization output of each plant is close or equal to the maximal throughput, which implies that with the current water-resource and pollution-control-objects restrictions, only when all plants carried out the cleaner production and reuse measures written in the environmental impact assessment reports, the expectant effects of industrial symbiosis could be reached; （2） The optimization output of calcium carbide plant is a little lower than its throughput, that is to say, there are some spaces to save water, energy and reduce discharge still. The exquisite managements should be introduced to the cleaner production in this plant ; （3） The relative parameters in model will shift if some conditions such as industry-chains, resources, throughput or pol- lution-control-objects changed, thus the optimization outputs will also change. If the difference between the optimization output and the maximal throughput of one plant is very large, the industry-chains must be amended besides improving the plant itself to enhance the whole efficiency.
出处
《干旱区地理》
CSCD
北大核心
2009年第6期971-977,共7页
Arid Land Geography
基金
国家科技部重大科技支撑项目(BA007)
国家973项目(2007CB411308)资助
关键词
干旱区
工业共生
模糊数学
优化模型
石河子市
arid area
industrial symbiosis
fuzzy mathematics
optimization model
Shihezi City
