人工湿地在城镇污水深度处理中的应用

——以某污水处理厂再生水利用工程为例

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关键词：人工湿地；污水深度处理；再生水利用；工程实践

中图分类号：X703 文献标识码：A 文章编号：1008-9500（2025）07-0249-03

DOI： 10.3969/j.issn.1008-9500.2025.07.073

Application of Artificial Wetlands in Deep Treatment of Urban Sewage -Taking the Recycled Water Utilization Project of a Certain Sewage Treatment Plant as an

Example

LIYanke

（Shenyang Saisi Environmental Engineering Designand Research CenterCo.，Ltd.，Shenyang11oooo，China）

Abstract：The efluent qualityof someurban sewage treatment plants is unstable，andartificial wetlandsarean emerging method foradvancedsewage treatment.Artificial wetlandsareagreenandecologicalsewage treatmenttechnology with lowinvestmentandoperationcosts，stabletreatment efects，and significantecological benefits.Taking therecycledwater utilizationprojectofacertainsewagetreatment plantasanexample，thecombinationprocessof"subsurfaceflow wetland + （20 surfaceflowwetland"isadopted todeeply treattheeffuentofurbansewage treatmentplants，withadesignedtreatment capacity of 20000m3/d. The construction project includes 1.52hm2 of subsurface flow wetlands and 4.03hm2 of surface flow wetlands，achieving an annual utilization of 7300000m3 of recycled water and reducing Chemical Oxygen Demand （COD） by 146 t，ammonia nitrogen （NH 3 -N） by 25.55 t，and Total Phosphorus （TP） by 1.46t. Practice has shown that this process hasagooddeeptreatment efecton wastewaterfromsewage treatment plants，providing valuableengineering experience for the deep treatment of wastewater from urban sewage treatment plants.

Keywords：artificial wetland;advanced sewage treatment;reclaimed water utilization; engineering practice

随着我国城镇化进程的加快和环保要求的日益严格，城镇污水处理厂出水水质面临更高标准。（剩余3199字）