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:1004-8227(2002)03-0279-05贺 锋,吴振斌＊,付贵萍,陈辉蓉,成水平,熊 丽,邱东茹,金建明,李玉元(,430072) :,,、、pH。,,N。,KN、NH+4-N、NO-2-N,50%、66%71%。-。,,。,,,。:;;;:A ,,,,、。80%,1/3,90%,50%。,,,,。,,。N,[1]。,[2],[3],N,[4]。N[5]。,。BOD、COD,。,Seidel,,[6]。,,,,。1 1.1 (1×1×1)m3,,。,,。1210cm(1)。1.2 ,。(1,Inf.1),,,(2,Inf.2),。12,,200mm/d。1.3 :(1);(2),,;(3);(4)。1。11320025 ResourcesandEnvironmentintheYangtzeBasin Vol.11No.3May2002:2001-05-08;:2001-10-10:(KSCX2-SW-120-09)、(39925007)(ERBIC18CT960059).: (1973～ ),,,. ＊.1 (,PVC)Fig.1 ExperimentalSystemStructure1 Tab.1 PlantsCompositioninSmallScalePlotsoftheConstructedWetlandPlot1P2P3P4P5P6P7P8P9P10P11P121.4 1～2,、N。、、、pH(ColeParmer60648、pH)、(UC-12);()、()、(N-(1-)-)、();《》[7]。2 2.1 ,。、、、pH。。2 ()Tab.2 Physi-ChemicalParametersofInfluentandEffluent(AverageValue)(℃)(μs/cm)(mV)pH (mg/L)18.8538518.48.9P116.6543477.12.9P216.5560297.13.3P316.5559327.32.8P416.2551407.33.4P516.3572-527.43.3P616.4523-307.73.9P716.5560-127.02.9P816.4560-196.93.6P916.4551-66.92.1P1016.4561-246.92.1P1116.5557-97.02.5P1216.4572-56.92.23～28.5510～58025～658～93.8～19.25.5～27.1490～590-96～786.8～7.91.4～4.4 4℃,,4℃,,。,。,;,。。,(1)280 11,;(2)。(ORP)。pH,pH,、,、。2.2 19978,1～2。,,。2 Fig.2 ChangesontheConcentrationsofNitrogeninConstructedWetlands3 NFig.3RemovalRateofNitrogeninConstructedWetlands 2:①,,;②2,1;③,,。112,,2、、1。,,,,,,,、,21。,、、,。,(2)。,,,,2813 :,,KN、NH+4-,NO-3-N。,,。,,,,。KN、NH+4-N、NO-2-N,40%,NH+4-N55%。NO-2-N60%,90%,NO-2-N。NO-3-N,,,[8],,,,(3)。,,,NH+4,,NO-3,:NH+4+2O2※NO-3+H2O+2H+。,,,。,N[9],,,,,,。,[10]。,,,10mg/L,,(),()。()(),。42.16%,49.89%,-1.4%,44.68%～57.14%,57.68%～73.85%,62.21%～91.49%(2)。,Plot2,Plot4Plot7。3 (1),Seidel,。(),:Seidel,。,,Seidel:①,10cm,,,。②,,,。Seidel40%～60%,,50.10%,,86.87%。(2),。:①;②,;③;④。(3):①;②,。4 (1),;,。(2)、,(),。(3)-,,。 、、、、、、、、282 11,.:[1] RydingS,RastW.[M]. .:,1992..[2] .[M].:,1995.[3] ,,,.[J].,2000,9(2):242～247.[4] GreenM,FriedlerE,SafraiI.Investigationofanalternativemethodfornitrificationinconstructedwetlands[A].In:5thIn-ternationalConferenceonWetlandSystemforWaterPollutionControl[C],Vienna1996,I/4.[5] GreenM,FriedlerE,SafraiI.Enhancingnitrificationinverticalflowconstructedwetlandutilizingapassiveairpump[J].WaterResearch,1998,32(12):3513～3520.[6] JohannesL,ReinhardP,RaimundH.Twostragediesforad-vancednitrogeneliminationinverticalflowconstructedwetlands[A].In:5thInternationalConferenceonWetlandSystemforWa-terPollutionControl[C],Vienna1996,I/5.[7] .()[M].:,1989.[8] , ,,.[J],,2000,25(3):177～180.[9] .[M].:,1987.[10] ,.[M].:,1998.PHYS-CHEMICALCHARACTERANDNITROGENCHANGESININTEGRATEDCONSTRUCTEDWETLANDATTHEINITIALSTAGEOFOPERATIONHEFeng,WUZhen-bin,FUGui-ping,CHENHui-rong,CHENGShui-ping,XiongLi,QIUDong-ru,JINJian-ming,LIYu-yuan(StateKeyLab.ofFreshwaterEcologyandBiotechnology,InstituteofHydrobiology,TheChineseAcademyofSciences,Wuhan430072,China)Abstract:Thispaperreportedtheremovalefficiencyofnitrogeninadownflow-upflowconstructedwetlandpuri-fyingsystemwithintermittentloading,anddescribedthechangesoftemperature,dissolvedoxygenandpH.Theresultindicatedthatthesystemwasinunstableconditionatthebeginningofoperation,andtheremovalefficien-cywasnotremarkable.TheremovalefficiencyofKN,NH+4-NandNO-2-Nbecomesignificantasthesystembecomesstable,andtheaverageremovalratesare50%,66%and71%respectively.Nitrificationisthepre-dominantremovalprocessofammonia.Generally,theconcentrationsofnitrateinplantstreatmentsystemarehigherthanthatinthecontrol,whichrevealsthatintermittentloadingandthepresenceofplantsarebeneficialtonitrification.Theresearchresultshowsthatthedownflow-upflowsystemofconstructedwetlandshasagoodperformanceinimprovingwaterqualityinwinter.Itwillbeanimportantsensetoimprovewaterqualityandre-storedegradedaquaticecosystem.Keywords:integratedconstructedwetlands;intermittentloading;nitrogenremoval;nitrification2833 :