基于AHP和TOPSIS的污染场地修复技术筛选方法研究  

SELECTION OF REMEDIATION TECHNIQUES FOR CONTAMINATED SITES USING AHP AND TOPSIS

作　　者：张倩[1] 蒋栋[1,2] 谷庆宝[1] 李发生[1] 周友亚[1] 侯红[1] 

机构地区：[1]环境基准与风险评估国家重点实验室(中国环境科学研究院),北京100012 [2]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《土壤学报》2012年第6期1088-1094,共7页Acta Pedologica Sinica

基　　金：环保公益性行业科研专项经费项目(200809095;201009032);中央级公益性科研院所基本科研业务专项(2008GGQD01)资助

摘　　要：污染场地作为潜在的污染源,多位于城市人口密集区,具有较大环境风险,且随我国城市产业结构的调整有逐年增加的趋势,引起国家的日益重视。目前国内外应用于污染场地修复的技术类型较多,采用科学的方法选择技术适用、经济可行和环境友好的修复技术具有重要意义。在分析已有的污染场地修复技术筛选方法和解决多参数决策问题的方法及工具的基础上,提出了基于层次分析法(AHP)和逼近理想解的排序法(TOPSIS)的污染场地修复技术筛选决策流程,构建了污染场地修复技术筛选的指标体系,通过领域专家调查和AHP法获得修复技术筛选不同指标的权重,然后采用TOPSIS法对污染场地修复技术进行排序。利用该方法筛选与某案例污染场地的实际筛选结果接近一致。AHP和TOPSIS结合运用于解决复杂的多因素决策问题,既能克服AHP在不易定量化指标上的主观性,又能避免TOPSIS对指标权重的忽视,能够为土地拥有者或环境工作者解决实际修复技术筛选问题提供有益的工具。As a potential pollution source, contaminated sites are located mostly in densely populated areas like cities, posing high environmental risks to the public and, what is more, tend to increase in number and area in recent years with the on-going industrial restructuring in cities of the country, thus arousing more and more concerns from the nation. Nowadays, in China and other countries of the world, a huge variety of technologies or techniques are available for remedying polluted sites technologies, so it＇s of great significance to scientifically screen out technologies, technically applicable, economically feasible and environmentally friendly. Based on analysis of currently available approaches to screening the technologies for remedying polluted sites, and methods and tools to solve the multi-parameter problem in decision-making, an AHP-and-TOPSIS based remediation decision making process was worked and put forth and an index system established for the screening. Weights of the indices for the screening were worked out through investigation by experts in this field using AHP, and then the remediation technologies were collated with TOPSIS. This remediation decision making process was verified with the actual screening for a case of polluted site in China. AHP and TOPSIS were used in combination to solve the complicated multi-factor problem in decision making, thus not only overcoming the issue of subjectiveness of AHP in handling hard-to-quantify indices, but also avoiding the shortcoming of TOPSIS neglecting index weights. It is, therefore, a good tool for landowners and environmental researchers to screen remediation techniques for polluted sites.

关 键 词：污染场地 修复技术筛选 层次分析法 逼近理想解的排序法 

分 类 号：X323[环境科学与工程—环境工程]