| 引用本文: | 李广英，何跃君，冯朝晖，葛劲松，王凌青，关海钢，罗梦超.2021.青南地区城镇污水处理厂综合效率评估分析[J].地球环境学报,12(4):436-446 |
| LI Guangying, HE Yuejun, FENG Zhaohui, GE Jingsong, WANG Lingqing, GUAN Haigang, LUO Mengchao.2021.Comprehensive evaluation of wastewater treatment plant in the southern Qinghai based on Fuzzy-AHP model[J].Journal of Earth Environment,12(4):436-446 |
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| 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、运行管理等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。 |
| 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 |
| DOI：10.7515/JEE212007 |
| CSTR：32259.14.JEE212007 |
| 分类号: |
| 基金项目:青海省重大科技专项（2018-SF-A4） |
| 英文基金项目:Major Science and Technology Projects of Qinghai Province (2018-SF-A4) |
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| Comprehensive evaluation of wastewater treatment plant in the southern Qinghai based on Fuzzy-AHP model |
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LI Guangying, HE Yuejun, FENG Zhaohui, GE Jingsong, WANG Lingqing, GUAN Haigang, LUO Mengchao
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1. Qinghai Ecological Environment Planning and Environmental Protection Technology Center, Xining 810007, China
2. North China Institute of Aerospace Engineering, Langfang 065000, China
3. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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| Abstract: |
| 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 wastewater treatment plant should further strengthen the construction of facilities and take improvement measures to improve wastewater treatment efficiency and prevent wastewater in broken pip from polluting the environment, save the operation costs such as drug consumption, power consumption and labor cost. Only in this way can the technical performance, operation management and economic performance of the wastewater treatment plant in Qingnan area be improved. |
| Key words: analytic hierarchy process fuzzy comprehensive analysis wastewater treatment plant water quality standard-reaching rate upgrading and reconstruction |
