地表水功能区达标困境与治理对策

——以某工业园区东排渠IV类水质改善为例

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关键词：工业园区；东排渠；化学需氧量（COD）；氨氮；治理中图分类号：X52 文献标识码：A 文章编号：1008-9500（2026）02-0278-03DOI：10.3969/j.issn.1008-9500.2026.02.086

Difficulties and Countermeasures in Achieving Functional Zone Standards for Surface Water -Taking the Improvement of Class IV Water Quality in the East Drainage Channel of a

CertainIndustrialParkasanExample

YANGHaiming

（Zhaoqing High-tech Zone Ecological and Environmental Monitoring Station，Zhaoqing526ooo，China）

Abstract：Thecontinuous occurrence ofChemical Oxygen Demand （COD）andammonia nitrogen exceeding standards in the eastdrainagechannelofanindustrialparkisrootedinincompleteseparationofrainwaterandsewage，agingofthepipeline network，and inadequate managementmechanisms.The water environment treatmentof theeastdrainagechannel adopts the technical pathof“source emisionreduction-processcontrol-end treatment"，including point source supervision， rainwaterand sewagediversion，pipenetworkrestoration，and wetland purification measures.After treatment，themass concentrations of COD and ammonia nitrogen decrease by 30.4% and 45.2% respectively，and the single factor evaluation indexhasalldroppedbelow1，indicatingasignificantimprovementinwaterquality.Theresearchresultscanprovide effective reference for water environment treatment in similar industrial areas.

Keywords：industrialpark;eastdrainage channel; Chemical OxygenDemand （COD）;ammonia nitrogen;treatment

随着我国工业化、城镇化进程加快，地表水环境质量改善压力日益增大，尤其是工业集聚区周边水体普遍面临功能区达标困难的问题[1-2]。（剩余3281字）