环境工程学报2025，Vol.19Issue(6)：1339-1350,12.DOI:10.12030/j.cjee.202501082
污水收集系统降雨入流入渗:基于平原河网城市的案例分析
Rainfall-induced inflow and infiltration in sewage collection systems:a case analysis based on a plain river network city
摘要
Abstract
To address the operational oversight challenges caused by the lack of online flow monitoring data in wastewater collection systems,we propose an efficient pump station state-based monitoring technique for diagnosing rainfall-induced inflow and infiltration(RDII).The method comprehensively evaluates pump station performance and RDII severity through four key indicators:pump operation duration,dry-weather vs.wet-weather water level fluctuation amplitude,peak water levels,and peak-to-trough water level ratios.By analyzing rainfall-response operational patterns,the technique enables precise identification and localization of critical RDII source areas,significantly narrowing diagnostic scope and improving efficiency.The results showed that upstream pump station P1 exhibited the most severe RDII issues,with 77.94％ maximum increase in pump runtime during wet weather,0.76 m average water level rise during pump operation,extreme peak level of 3.01 m and peak-to-trough ratio up to 4.32.Downstream pump station P4 showed significantly increased loading,strongly correlated with P1's RDII.Subsequent flow monitoring deployment in P1's service area revealed dramatic RDII variations(2.22％-85.12％),directly explaining P4's wet-weather overload.This study not only provides a science-based RDII diagnostic framework for flow-data-scarce systems,but also offers cost-effective process optimization strategies.关键词
污水收集系统/管网/降雨入流入渗/泵站运行状态/诊断效率Key words
sewage collection system/sewer network/rainfall-derived inflow and infiltration(RDII)/pump station operational status/diagnostic efficiency分类
环境科学引用本文复制引用
邓双龙,赵萌,刘锐..污水收集系统降雨入流入渗:基于平原河网城市的案例分析[J].环境工程学报,2025,19(6):1339-1350,12.基金项目
浙江省省属科研院所专项 （）
"创新嘉兴·优才支持计划"先锋型创新团队建设项目 （）
浙江清华长三角研究院自主立项科研项(LZZLX24E003) （LZZLX24E003）
