城市地表径流人工湿地生态处理工程尹炜

25420068Vol.25No.4JournalofLiaoningTechnicalUniversityAug.20062005-07-21(2002AA601022)(1978-),,,,,[e-mail]1008-0562(2006)04-0614-041,21133VA41.1100162.1000393.4300514.664033CODCr75.4%79.1%TP81.8%84.3%TN64.9%69.8%SS93.8%94.7%CODCrTPTNSS60.7%64.8%73.4%75.6%43.2%48.4%60.3%66.4%COD0.01kg/m2dX171.1ATreatmentofurbansurfacerunoffbyconstructedwetlandsYINWei1,2LIPeijun1KEXin1YEMin3HanXiaobo3VAVerkhozina4(1.InstituteofAppliedEcology,ChineseAcademyofSciences,Shenyang110016,China;2.GraduateSchoolofChineseAcademyofSciences,Beijing100039,China;3.ChangjiangWaterResourceProtectionScienceInstitute,Wuhan430051,China;4.InstituteofGeochemistry,A.P.VinogradovaSiberianBranchofRussianAcademyofScience,Irkutsk664033Russia)AbstractTheecologicaltreatmentsystemconsistingofpondsandconstructedwetlandsisstudiedinTaohuadaoregionofWuhancity.Thissystemwasusedtocontrolurbansurfacerunoffandtheinitialcommissionandoperationofconstructedwetlandsisdiscussed.Theresultsshowthattheecologicaltreatmentsystemcantreaturbansurfacerunoffefficiently.TheremovalefficienciesofdifferentpollutantsinthesystemareCODCr75.4%79.1%TP81.884.3%TN64.9%69.8%SS93.8%94.7%andtheremovalefficienciesofCODCrTPTNSSintheconstructedwetlandsare60.7%64.8%73.4%75.6%43.2%48.4%60.3%66.4%respectively.Thepollutantsremovalloadofconstructedwetlandsis0.01kgCOD/m2d.Whenthereisnorainsomemunicipalwastewatercanbetreatedinthisecologicaltreatmentsystemtoachievethepurposesofminifyingpollutionandstabilizingtheecologicalsystem.Keywordsurbansurfacerunoff;constructedwetlands;subsurfaceconstructedwetland;pond;ecologicalengineeringNP[1-2]70[3-6]4:6151150~1450mm3871.33km230%1.2.111Fig.1treatmentflowchartofurbansurfacerunoff1.2.21.33km212600m312600m3510d12602100m37001200m3/d1CODTNTPSS[7]Tab.1parametersofurbansurfacerunoffwastewaterqualityCODCrTPTNSS/(mg·L-1)2002.025.060012h14cm/d3d10cm30cm30cm3d2Tab.2commissionandoperationeffectusingwastewatercombinedbyrunoffandmunicipalwastewaterCODCrTPTNSS/(mg·L-1)161.028.42.650.2723.212.04531.256.2/(mg·L-1)98.514.61.750.2013.801.6681.112.6/%37.340.831.435.938.142.384.285.8/(mg·L-1)35.83.50.450.067.491.2730.05.9/%60.764.873.475.643.248.460.366.4/%75.479.181.884.364.969.893.894.725616~700m3/5000m2d12hSS85%30%CODTNTPTN50%60%TP75.6%GB89781996TPTNTNCOD60%0.01kgCOD/m2d—CODCrTPTNSS75.4%79.1%81.8%84.3%64.9%69.8%93.8%94.7%113Tab.3commissionandoperationeffectusingwastewatercombinedbylakewaterandmunicipalwastewaterCODCrTPTNSS/(mg·l-1)108.912.82.090.2528.692.63120.712.3/(mg·l-1)83.67.41.590.1420.391.8277.86.6/%19.925.120.826.227.830.433.837.7/(mg·l-1)31.53.70.400.0611.650.9122.82.8/%61.363.873.876.241.444.069.772.1/%71.173.579.282.458.960.080.481.9--700m3/5000m2d12h3SS30%30%TNGB89781996-2CODTNTPSSSS4:617SSSSSSSS2-Fig.2effectscomparisonoftreatingdifferentwastewater—80%SSSS[8]—SSCODCr75.4%79.1%TP81.8%84.3%TN64.9%69.8%SS93.8%94.7%CODCrTPTNSS60.7%64.8%73.4%75.6%43.2%48.4%60.3%66.4%0.01kgCOD/m2d(CODCr)120mg/L(TP)2mg/L(TN)25mg/L(SS)100mg/L25cm/dCOD0.02kg/(m2d)1216h[1],,.[J].,1998,19(5):87-91.[2].[M].:,2002.[3],.[M].:,1991.[4],.[M].:,2004.[5]U.S.EPA.ConstructedWetlandTreatmentofMunicipalWastewatersManual[M].Ohio:EPA625-R-99-010,OfficeofResearchandDevelopment,Cincinnati,2000.[6]JamesNC.constructedwetlandsintreatingurbanstormwaterrunoff[J].Wat.Environ.Res.,2000,72(3):295-304.[7].(4)[M].:,2002.[8]KadlecRH.Pondandwetlandtreatment[J].WatSciTech,2003,48(5):1-8.0408012016020001234ρ(TP)/(mg·L-1)0102030400200400600ρ(SS)/(mg·L-1)ρ(TN)/(mg·L-1)ρ(COD)/(mg·L-1)