环境工程学报2025，Vol.19Issue(10)：2435-2444,10.DOI:10.12030/j.cjee.202502009
南方某镇污水管网问题高效排查与关键管段精准定位
Precision diagnosis and critical segment identification in sewer networks:A case study of southern chinese town
摘要
Abstract
To address the challenges of low efficiency and high costs in sewer network problem identification,this study focused on a town in southern China.Utilizing multidimensional data analysis and quantitative calculations,we identified inadequate pollutant collection and extraneous water infiltration in its catchment areas,while precisely locating critical sewer exfiltration segments.The findings revealed significant differences in wastewater pollutant concentrations between wet and dry seasons.From 2022 to 2023,the town's annual average COD concentration remained below the influent average of Taihu Basin wastewater treatment plants,with particularly low concentrations observed during August-September.Water levels at three main pumping stations(P1-P3)showed positive correlation with rainfall:levels rose significantly during precipitation exceeding 5.0 mm and peaked during rainfall over 20.0 mm,increasing treatment plant loads and risking sewer overflows.The pipeline between P1 and P2 exhibited severe collection deficiencies(＜20％for NH3-N,TN,and TP),while the P2-P3 segment suffered substantial infiltration.Through targeted nodal tracing,we pinpointed exfiltration at pipeline X2-2→X2-1 and infiltration near X3-3.By analyzing pump station operational data,this study achieved cost-effective,efficient network diagnostics,providing scientific support for intelligent,precision management of sewer systems.关键词
污水管网/泵站/污水收集率/外水入侵/智能化管理Key words
sewer network/pumping station/sewage collection efficiency/extraneous water infiltration/smart management分类
资源环境引用本文复制引用
路程,赵萌,刘锐..南方某镇污水管网问题高效排查与关键管段精准定位[J].环境工程学报,2025,19(10):2435-2444,10.基金项目
浙江省省属科研院所扶持专项 （）
浙江清华长三角研究院自主研发立项(2023ZQZ005) （2023ZQZ005）
