污水管网高水位运行原因及对策措施研究

Research on the causes and solutions for high water level operation of sewage system

A镇位于华南滨海地区,现状排水体制为截流式合流制,镇内污水管网密度2.6km/km2,已建截流井约410座。根据水位观测数据,发现污水管网实际运行水位位于管顶以上0.94~2.78m,比正常运行水位偏高1.49~3.33m,处于高水位运行工况。通过分析污水管网高水位运行的原因,提出增产能、减污水、挤外水和除缺陷等针对性解决措施。

Town A located in the coastal area of South China.The current drainage system is interception confluence system.The density of the sewage system in the town is only 2.6 km/km2,and about 410 interception wells have been built.Based on water level observation data,it is found that the actual operating water level of the sewage system is 0.94~2.78 mabove the pipe top,1.49~3.33 m higher than the normal operating water level,and it is in a high water level operating condition.Through reviewing the data and on-site review,the reasons for the high water level operation of the sewage system were analyzed,and targeted solutions such as increasing Sewage treatment capacity,reducing the amount of sewage,squeezing extraneous water,and eliminate defect were proposed.