基于层次分析-灰色评价法的北京市农村污水处理技术评估

Evaluation of Beijing rural sewage treatment technology based on Analytic Hierarchy Process-Grey Relation Analysis

以北京市农村污水处理设施常见的6种农村污水处理技术作为评估对象,建立了包括处理效果、经济成本、环境影响和运行管理4个准则层、12个评估指标的北京市农村污水处理技术评估体系.基于不同农村污水处理设施出水分类排放要求,利用层次分析-灰色评价法对北京市6种典型农村污水处理技术在不同应用情景下进行了分类评估,得到了北京市不同污水产生和排放情景下的农村污水处理适宜技术.层次分析-灰色评价法适用于多目标的北京市农村污水处理技术决策评估,具有较好的可行性.

Taking 6 kinds of rural sewage treatment technologies commonly used in rural sewage treatment facilities in Beijing as evaluation objects,an evaluation system of rural sewage treatment technology in Beijing was established,including 4 criteria levels of treatment effect,economic cost,environmental impact and operation management,and 12 indexes.Based on the requirements of effluent classification and discharge of different rural sewage treatment facilities,six typical rural sewage treatment technologies in Beijing were classified and evaluated under different application scenarios by analytica hierarchy process(AHP)-grey relational analysis(GRA),and the appropriate rural sewage treatment technologies under different sewage generation and discharge scenarios in Beijing were obtained. AHP-GRA evaluation method is suitable for multi-objective decision evaluation of rural sewage treatment technology in Beijing and has good feasibility.