辽源市污水管网改造与修复实践

Renovation and repair practice of sewage pipe network in Liaoyuan city

辽源市排水管道因建设年代久远,管道老化、腐蚀、破损、淤积、沉降、变形等问题十分严重,外来水通过漏损和混错接管道大量进入污水系统,影响污水处理厂处理效能.对辽源市中心城区排水管网进行健康度排查,分析排水管网现状问题和定量评估外来水入流入渗情况.根据排查和监测出的具体问题提出管网修复与改造的策略和技术方法,明确近远期管网修复具体工程和任务,统筹推进污水处理提质增效工作.通过近期已实施管网修复和混错接改造项目,辽源市生活污水集中收集率较上年显著提高.

Due to the long history of construction,the drainage pipeline in Liaoyuan City has serious problems such as aging,corrosion,damage,sedimentation,deformation,external water enters the sewage system in large quantities through leakage and mixed and misconnected pipelines,affecting the treatment efficiency of the sewage plant.Conduct a health check on the drainage network in the central urban area of Liaoyuan,analyze the current problems of the drainage network,and quantitatively evaluate the inflow and infiltration of external water.Propose strategies and technical methods for pipe network repair and renovation,based on the specific problems identified through investigation and monitoring,and also clarifying the specific engineering and tasks for pipe network repair in the near and long term,and coordinating the promotion of sewage treatment quality and efficiency improvement work.The centralized collection rate of domestic sewage in Liaoyuan city has significantly increased compared to the previous year through the recently implemented pipeline repair and mixed and staggered connection renovation projects.