基于数据和模型的污水系统外水诊断方法  

Data-Driven and Model-Based Diagnosis Method for External Water of Wastewater System

作　　者：潘铁津 解斌 刘静 黄俊 PAN Tiejin;XIE Bin;LIU Jing;HUANG Jun(Shenzhen Guangming District Environmental Water Co.,Ltd.,Shenzhen 518000,China;Shanghai Huishui Technology Co.,Ltd.,Shanghai 200090,China)

机构地区：[1]深圳市光明区环境水务有限公司,深圳518000 [2]上海慧水科技有限公司,上海200090

出　　处：《净水技术》2025年第4期189-196,共8页Water Purification Technology

摘　　要：外水入侵已成为城市排水系统面临的严峻挑战,严重影响系统的运行效能,导致水质净化厂进水浓度降低以及管网高液位运行,与国家大力倡导的低碳社会建设相悖。GM水质净化厂作为G区的主要污水处理设施,位于MZH河上游,服务片内污水以重力排放为主,中下游污水管埋深较深;另外,片区三面环山,水系发达,地下水位较高,因此外水入侵现象较为明显。【目的】近年来,G区致力于外水剥离工作,为了提供有效的技术支撑,文章以HX路干管为研究对象。【方法】结合模型模拟+数据分析2种技术手段,利用水量平衡法和模型校核法,定量评估干管上的外水入侵量,并结合过往检测,监测和踏勘等资料,进一步锁定外水入侵的范围,定位外水入侵的管段。【结果】结果表明,HX路干管服务范围内,其上游主要存在污水未收集的问题,约7000 m^(3)该收集的污水直接进入截污箱涵;而下游主要存在外水入侵的问题,约3000 m^(3)外水流入到HX路干管,且发现管网局部位置处输送能力不足。【结论】在面对流量计欠缺但液位计充足的条件下,文章总结出了一套可持续,可推广的经验和方法来有效定量识别外水入侵问题,为城市排水系统的优化升级提供了宝贵的参考,对于促进水资源的合理利用、减少环境污染以及推动低碳社会建设具有重要的实践意义和长远价值。Infiltration of extraneous water has become a severe challenge for urban drainage systems,significantly impacting their operational efficiency,leading to lower influent concentrations at wastewater treatment plants(WWTPs)and higher water levels in pipelines,which contradicts the national promotion of low-carbon society construction.As the primary wastewater treatment facility in District G,GM wastewater treatment plant is located upstream of the MZH River.Within its service area,wastewater is primarily discharged by gravity,with deeper buried pipelines in the middle and lower reaches.Additionally,the area is surrounded by mountains on three sides and features a well-developed water system and a higher groundwater table and thus more evident infiltration issues.[Objective]In recent years,District G has been dedicated to the separation of extraneous water.[Methods]To provide effective technical support,this study focuses on the HX main pipeline,employing two method ological approaches:"model simulation+data analysis.Utilizing the water balance method and model verification,it quantitatively evaluates the amount of extraneous water infiltrating the main pipeline.Combining historical inspection data,monitoring records,and field surveys,the study further pinpoints the scope of infiltration and identifies the segments affected by extraneous water.[Results]The result indicated that within the service area of the HX main pipeline,the upstream region primarily faces issued of uncollected sewage,with approximately 7000 m^(3) of wastewater directly entering the interception culvert;whereas the downstream region mainly suffered from extraneous water intrusion,with roughly 3000 m^(3) of extraneous water entering the HX main pipeline.The study also identifies insufficient conveyance capacity in localized sections of the pipeline network.[Conclusion]Facing a situation where flow meters are lacking but level gauges are abundant,this paper summarizes a set of sustainable and scalable method for effectively quantifying extraneous

关 键 词：外水入侵 水力模型 实时监测 水量平衡 模型校核 

分 类 号：TU992[建筑科学—市政工程]