摘要
农村生活污水处理设施示范推广中,对技术方案进行定量优选评价有助于提高决策的科学性.为此,本文建立了一个考虑了技术经济性、有效性和适宜性的农村生活污水处理技术评价指标体系,评价指标包括有机物去除率、氨氮去除率、总磷去除率、基建成本、运行成本、占地面积、经济收益、技术稳定度、管理方便度和生态协调度等.同时,建立了基于模糊优劣系数法的农村生活污水处理技术优选评价方法,即在备选方案初步筛选的基础上,采用本文建立的指标体系对备选方案的技术性能和研究地区的技术需求进行模糊赋值,构建优劣关系评判矩阵,计算各方案的模糊优劣系数并进行排序,从而获得最佳方案.最后以常州市友谊村为例进行了应用分析.结果发现,评价结果符合当地的实际情况.该方法不仅考虑了农村生活污水处理技术的性能和应用地区对农村生活污水处理的技术需求,更强调了两者之间的匹配性,可为农村生活污水处理技术示范推广提供决策分析工具.
In demonstration and extension of rural sewage treatment processing facilities,quantified evaluation of the technology solutions can improve the scientific nature of decisions-making.In this paper,a rural sewage treatment technology evaluation index system considering technology effectiveness,economy and efficiency was established,and the indicators included COD Removal Efficiency,NH＋4-N Removal Efficiency,TP Removal Efficiency,Construction Cost,Operating Cost,Land occupation Area,Economic Benefits,Technology Stability,Management Easiness Degree and Ecological Coordination Degree.The rural sewage treatment technology evaluation method based on fuzzy advantages and disadvantages coefficient was proposed.The method includes initially screening the alternative solutions,evaluating the technology performance and the technology demands degrees from the study area with the indications systems and the fuzzy evaluation method,and building the pros and cons relationship matrix between the alternative solutions and calculating the pros and cons coefficient to obtain the optional solution.A case study was conducted in Youyi Village in Changzhou City,and the evaluation results matched the local conditions.The method considers not only the technical performance of rural sewage treatment technology,but also the applicability of the sewage treatment for rural areas and the matching between the technology performance and the technology demand.The method can serve as the decision analysis tool for sewage treatment technology demonstration and promotion in rural areas.
出处
《环境科学学报》
CAS
CSCD
北大核心
2012年第9期2287-2293,共7页
Acta Scientiae Circumstantiae
基金
国家科技重大专项(No.2009ZX07632-02-03
2009ZX07106-03-01)
国家自然科学基金项目(No.70901035)
环保公益性行业科研专项(No.201109024)~~
关键词
农村生活污水
处理技术
指标体系
优劣系数法
模糊评价
rural sewage
treatment technology
index system
advantages and disadvantages coefficient method
fuzzy evaluation
