SHIShun-quan,TANGYu-yu,CHENDe-ye,et al.Application of Joint Dispatching Strategy to Investigate the Backflow Points of the Sewage System in the River Network Area[J].China Water & Wastewater,2023,39(24):115-121.
联合调度策略用于河网区污水系统倒灌口排查
- Title:
- Application of Joint Dispatching Strategy to Investigate the Backflow Points of the Sewage System in the River Network Area
- Keywords:
- sewage pipeline network; interception well; backflow point investigation; joint dispatching; improving quality and efficiency
- 摘要:
- 为解决南方某河网地区污水处理厂进水低浓度、高负荷运行的问题，结合流域水系及排水系统的特点，通过污水处理厂-排水管网-河涌的联合调度策略对倒灌口进行排查，分析了倒灌口空间分布规律、与周边管网拓扑关系及其对污水处理厂进水水质的影响。测算结果表明，扣除倒灌口影响后，污水处理厂进水氨氮浓度可提高25.2%，并基于分析结果提出了增设防倒灌设施、溯源整改、破损管段修复、强化泵闸管理等工程技术措施 。
- Abstract:
- To solve the problem of low influent concentration and high load operation of the sewage treatment plant in a river network area in south China, the backflow points were investigated by the joint dispatching strategy of sewage treatment plant, sewage pipeline network, and river system, according to the local conditions. The spatial distribution, topology relationship, and its influence on the water quality of the sewage treatment plant were estimated. After removing the impact of backflow points, the influent ammonia nitrogen concentration of the sewage treatment plant can be increased by 25.2% based on the measurement. Based on the analysis results, the technical measures such as adding anti-backflow facilities, rectifying traceability cation, repairing the damaged pipeline, and strengthening pump & gate management have been proposed.
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