青南地区城镇污水处理厂综合效率评估分析  

Comprehensive evaluation of wastewater treatment plant in the southern Qinghai based on Fuzzy-AHP model

作　　者：李广英 何跃君 冯朝晖 葛劲松 王凌青 关海钢[1] 罗梦超 LI Guangying;HE Yuejun;FENG Zhaohui;GE Jingsong;WANG Lingqing;GUAN Haigang;LUO Mengchao(Qinghai Ecological Environment Planning and Environmental Protection Technology Center,Xining 810007,China;North China Institute of Aerospace Engineering,Langfang 065000,China;Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]青海省生态环境规划和环保技术中心,西宁810007 [2]北华航天工业学院,廊坊065000 [3]中国科学院地理科学与资源研究所,北京100101

出　　处：《地球环境学报》2021年第4期436-446,共11页Journal of Earth Environment

基　　金：青海省重大科技专项(2018-SF-A4)。

摘　　要：青南地区地处青藏高原腹地,是我国多条大江大河发源地,该地区污水处理对下游江河水环境质量改善具有重要意义。对青南地区(玉树、果洛和黄南)污水处理厂的综合效率进行定量评估分析并指出制约其效率提升的因素,对推动该地区污水处理产业的后续发展具有重要意义。因此,本文以青南地区11座城镇污水处理厂为研究对象,利用层次分析法和模糊综合分析法构建的模糊层次分析模型,从技术性能、经济性能、运行管理三个层面选取指标对模型进行量化,评估青南地区各污水处理厂的综合效率。结果表明:污水处理厂的综合得分在80分以上的只有1座,50—80分的有4座,50分以下的有6座,平均得分只有50.88分,表明该区域污水处理厂综合运行效率并不理想。通过实地调研,结合分析各污水处理厂表现较差的指标,发现该地区雨水收集率较低、低温冻裂管网等问题是导致污水处理效率偏低的主要原因。同时,未进行完备的污水处理设施建设与未完成提标改造是导致污水处理厂整体运行效果差等问题的重要原因。因此各污水处理厂应进一步加强设施建设,采取改进措施提高污水处理效率,防止管网等设备破裂导致污水污染环境,节约药费、电耗、人工费等运行费用,进一步提高青南地区污水处理厂的技术性能、运行管理和经济效益。Background,aim,and scope Qingnan area is located in the hinterland of the Qinghai-Tibet Plateau,which is the birthplace of many major rivers in China.Wastewater treatment in this area is of great significance to improve the water quality of the downstream river.The purpose of this study is to quantitatively evaluate and analyze the comprehensive efficiency of wastewater treatment plants and point out the factors restricting their efficiency improvement,so as to promote the follow-up development of wastewater treatment industry in Qingnan area (including Yushu,Guoluo and Huangnan).Materials and methods Thus,11 urban wastewater treatment plants in Qingnan area are taken as research objects in this study,analytic hierarchy process (AHP) and fuzzy comprehensive analysis (FCA) are used to construct the fuzzy comprehensive evaluation (FCE) model for evaluating the comprehensive efficiency of wastewater treatment plants.Typical indicators from three aspects like technical performance,economic performance,and operation management are chosen to concretize the model for evaluate comprehensive efficiency of wastewater treatment plants in Qingnan area.Results The results showed that only one wastewater treatment plant scored more than 80 points,4 plants scored 50—80 points,and 6 plants scored less than 50 points.The average score of wastewater treatment plants was only 50.88 points.It shows that the comprehensive performance of most wastewater treatment plants in this area is not ideal.Discussion Through on-the-spot investigation and combined with the analysis of the poor performance indexes of each wastewater treatment plant,it is found that the low efficiency of wastewater treatment is caused by the low rainwater collection rate,low-temperature frost crack pipe network and other problems in this area.Conclusions Meanwhile,the overall operation effect is poor due to the incomplete upgrading and transformation,which needs the key construction and transformation of relevant departments.Recommendations and perspectives Each

关 键 词：层次分析法 模糊层次分析 污水处理厂 水质达标率 提标改造 

分 类 号：X703[环境科学与工程—环境工程]