图们江下游小城镇污水处理工艺的优化选择

Optimal Choice for Wastewater Treatment Process in Small Towns at the Lower Reaches of Tumen River

运用层次分析法(AHP)的理论及方法,建立一个4个层次11个指标6个方案的综合评价体系,从技术性能、经济效益和管理效益等方面,对氧化沟、SBR法、接触氧化法、曝气生物滤池、膜生物反应器及高级氧化法等6种污水处理技术进行了综合评价,从中拟选取适合图们江下游小城镇污水处理的最优方案。同时,采用专家评分法对6种处理技术进行计算、对比、评价。结果表明,膜生物反应器的分值最高,为图们江下游小城镇污水处理工艺的首选。

A comprehensive evaluation system including 4 layers,11 indexes and 6 schemes was established using the AHP（analytic hierarchy process） for domestic wastewater treatment in small town at the lower reaches of Tumen River in China.The oxidation ditch,SBR process,contact oxidation process,biological aerated filter,membrane bioreactor and advanced oxidation process were determined from the technical performance,economic efficiency and management effectiveness,and the optimal scheme was determined.At the same time,six kinds of processing technologies were carry out through calculation,comparison,evaluation using the experts grading method.The results showed that the membrane bioreactor had the highest score as the preferred technology for domestic wastewater treatment in small towns at the lower reaches of Tumen River.