HUANG Zhi-xin.Practice and Thinking of Upgrading and Reconstruction of Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2020,36(22):48-53.
城镇污水处理厂提标改造实践与思考
- Title:
- Practice and Thinking of Upgrading and Reconstruction of Municipal Wastewater Treatment Plant
- 摘要:
- 结合福州3座污水处理厂提标改造案例分析与总结，提出生化系统挖潜步骤、深度处理工艺选择要点、南方城市污水处理厂提标改造特点，并对提标改造工艺发展方向进行展望。根据3座污水处理厂生化处理工艺、进水水质、区域环境功能、运行情况采用不同的设施改造和提标工艺，混凝沉淀工艺均选用高效沉淀池，过滤工艺分别选用深床滤池、滤布滤池和活性砂滤池。实践表明，3座污水厂出水都能稳定达到一级A排放标准，因地制宜选择深度处理工艺符合实际情况。
- Abstract:
- Combined with the experience of upgrading and reconstruction of the three wastewater treatment plants in Fuzhou, the improvement of biochemical treatment process, the key points of advanced treatment process selection, and the characteristics of upgrading and reconstruction of sewage treatment plants in southern cities are put forward, and the development direction of upgrading and reconstruction process is prospected. According to the biochemical treatment process, influent quality, regional environmental functions and operation conditions of the three sewage treatment plants, different facilities transformation and standard raising processes are adopted. Based on the existing process of three wastewater treatment plants, the high-efficiency sedimentation tank was selected as coagulation sedimention process, denitrification deep bed filter, fiber rotary disc filter and active sand filter were employed as filtration process, respectively. Through the technical upgrading and management optimization of the current process, the effluent quality of the three wastewater treatment plants could meet the requirement of the first level A standard steadily. The selection of advanced treatment process according to local conditions should be in line with the actual situation.
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