JINShi-huai,LUOFeng.Design of the Combined Sewer Overflow Pollution Control System for Xianhe Road Culvert in Dazhou[J].China Water & Wastewater,2025,41(24):56-62.
达州市仙鹤路涵洞合流制溢流污染控制系统设计
- Title:
- Design of the Combined Sewer Overflow Pollution Control System for Xianhe Road Culvert in Dazhou
- Keywords:
- combined sewer overflow pollution; integrated pump station; regulating tank; pressure sewage pipeline; vacuum flushing
- 摘要:
- 合流污水收集及治理是当下旧城区改造的重点及难点，通过新建截流泵站、压力污水管及末端调节池，将达州市仙鹤路涵洞合流制溢流污水截流至达州第二污水处理厂进行处理。根据现状溢流监测数据，确定泵站规模为8.0×104 m3/d，调节池有效容积为4.0×104 m3。采用密闭式一体化污水截流泵站解决防洪及占地问题；调节池采用集约化设计，将附属设施及建筑布置在调节池上部，池内采用超长冲洗廊道并配备真空冲洗系统，运行效果良好。项目建成后有效解决了仙鹤路涵洞溢流污染严重的问题，同时提高了州河左岸污水系统的受纳能力，实现了占地省、设备少、造价低的设计目标。
- Abstract:
- The collection and treatment of combined sewage is a key and challenging aspect in the current reconstruction of old urban areas. By constructing a new interception pump station, pressure sewage pipelines, and terminal regulating tank, the combined sewer overflow from Xianhe road culvert in Dazhou was intercepted and conveyed to the Dazhou No.2 wastewater treatment plant. Based on current overflow monitoring data, the size of the pump station was determined to be 8.0×104 m3/d, with an effective regulating tank volume of 4.0×104 m3. An enclosed, integrated sewage interception pump station was adopted to address flood control and space constraints. The regulating tank featured a compact design, with ancillary facilities and structures arranged on its upper level. The tank was equipped with extra-long flushing galleries and a vacuum flushing system, which has demonstrated good operational performance. Upon completion, the project has effectively resolved the severe overflow pollution issue at the Xianhe road culvert, while also enhancing the assimilative capacity of the sewage collection system on the left bank of the Zhou River. The design achieves the goals of minimized land use, reduced equipment requirements, and lower construction costs.
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