郴州城区污水系统确定目标提质增效可达性分析.pdfVIP

第46卷2025年

第3期有色冶金设计与研究6月

郴州城区污水系统确定目标提质增效可达性分析

【摘要]针对城区污水处理厂进水污染物浓度偏低的问题,以郴州市中心城区W8污水纳污片区为研

究对象，基于管网水质水量监测数据，分析了区域污水系统浓度偏低及大量外水入侵（旱季外水入侵率达

46.99%)的主要原因，并提出了包括管网改造、外水剥离及小范围源头雨污分流等针对性技术措施。通过外水

去除效果分析表明，实施该方案后，片区出水总管化学需氧量（COD)质量浓度预计可从现状78.3mg/L提升

至104.2mg/L，实现稳定达到100mg/L的规划目标，从而有效提升污水系统处理效率和水质。

【关键词]污水系统；提质增效；管网监测；外水入侵；化学需氧量

中图分类号：X703;TU992.3文献标志码：A文章编号：1004-4345(2025)03-0041-05

AccessibilityAnalysisforQualityImprovementandEfficiencyEnhancementoftheUrbanWastewater

SysteminChenzhouBasedonDefinedObjectives

SHENJilong,PANZhengke,CUOJianhuil2,YANGQiaoli2,ZENGBin,MOXuefengl?

(1.CISPDRCorporation,Wuhan,Hubei430010,China;2.StateKeyLaboratoryofWaterResourcesEngineering

andManagement,Wuhan,Hubei430010,China)

AbstractAimingatthelowinfluentpollutantconcentrationinurbanwastewatertreatmentplants,thispapertakestheW8

wastewatercollectionzoneindowntownChenzhouasthestudyobject.Basedonmonitoringdataofwaterqualityandflowinthe

pipelinenetwork,theprimarycausesoflowregionalwastewaterconcentrationandsignificantexternalwaterintrusion(dry-season

intrusionratereaching46.99%)wereanalyzed.Targetedtechnicalmeasureswereproposed,includingpipelinenetworkrenovation,

externalwaterseparation,andlocalizedsource-levelstorm-wastewaterseparation.Analysisofexternalwaterremovaleffectiveness

demonstratesthatchemicaloxygendemand(COD)inthezonesmaineffluentpipelineisexpectedtoincreasefrom78.3mg/Lto

104.2mg/Lafterimplementationofthisproposal.Theplannedtargetof100mg/Lwillbestablyachieved,therebyeffectively

enhancingwastewatertreatmentefficiencyandwaterquality.

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