赤子爱胜蚓强化潜流人工湿地效能的研究

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,210096;2.,210013):,:,;,,20cm,,;,CODNH+4-NTNTP12.98%26.73%16.94%27.21%,:;;;:X703:A:1000-4602(2009)09-0020-05EiseniafoetidaforEnhancingSubsurfaceFlowConstructedWetlandsFUDa2neng1,2,JIAJing1,2,FULing2min2,BUXian2ting2(1.Dept.ofMunicipalEngineering,SoutheastUniversity,Nanjing210096,China;2.NanjingWaterTreatmentandEcologicalRestorationEngineeringResearchCenter,Nanjing210013,China)Abstract:Toaddressthedeficiencyofsubsurfaceflowconstructedwetlands,thelivingstate,dis2tributionandenhancementofEiseniafoetidaatdifferentwaterlevelsinthewetlandsystemwerestudied.Theresultsindicatethattheearthwormsfindfoodnearthesoil2graveldividingline,whichimprovessoilbreath.Theearthwormsoflargebiomassandweightarefoundatthebaseofthesoil.Largeearthwormscango20cmdeepintothesoilandmaintaingoodrespirationandactivity.Whenthewaterlevelisattheborderofthesoil2graveldivision,theaverageremovalratesofCOD,NH+4-N,TN,TPare12.98%,26.73%,16.94%and27.21%higherthanthoseinthecontrolexperimentrespectively.Synergisticeffectbetweenearthwormsandmicroorganismsisalsooptimized.Keywords:earthworm;subsurfaceflowconstructedwetland;enhancement;operationper2formance:(TZ0761-010),,:,[1]BlairSubler[23]:,CNP,CN0225920095CHINAWATER&WASTEWATERVol.25No.9May2009©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4],[5],11115cm,5cm,,(1,)(23,10),45h,,20cm,60cm20cm,30cm,,15cm,20,,0.8m0.2m0.65m,10cm,68cm50cm,20cm,20,,,,11Tab.1InfluentqualitymgL-1CODNH+4-NTNTP36051640.257.956.379.22.274.131122(),0.381.18g,90150mm,35mm,113CODNH+4-NTNTP,[6]22114h,(),,[7],,,,,,,,,,,[8],,,,22,23.292g3.669g,11.45%;33.168g3.597g,13.54%,,,,2Tab.2Changeofobservationindexes123/g3.2923.6693.1683.597/%11.4513.54,,,,,,,12:259©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,)3Tab.3Distributionandstateofearthwormsinwetlandsoil/cm//g0520.54,51061.28,101551.62,152072.07,,,,;,,[9],(010cm),(1020cm),[8],,,,3,1520cm,,010cm,,,510cm1015cm,,,,,,,,,,213,,,,12h,35(,)30(,)25cm(,)21311COD,COD11CODFig.1RemovaleffectofCODCODCOD,,,CODCOD,,,COD,,,,,[10]COD,COD,,,COD21312,222259©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[11],,,,[12],,,50%,,,,21313,33Fig.3RemovaleffectofTN,,,,21314,44Fig.4RemovaleffectofTP,,,,[13]:;;;,4,;,,,3,,,,,,20cm,,,,32:259©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1]NikitaSEriksen2Hamel,JoannKW.Impactsofearth2wormsonsoilnutrientsandplantgrowthinsoybeanandmaizeagroecosystems[J].Agriculture,EcosystemsandEnvironment,2007,120(2-4):442-448.[2]BlairJM,ParmeleeRW,AllenMF,etal.ChangesinsoilNpoolsinresponsetoearthwormpopulationmanipu2lationsinagroecosystemswithdifferentNsources[J].SoilBiolBiochem,1997,29(3-4):361-367.[3]SublerS,BaranskiCM,EdwardsCA.Earthwormaddi2tionsincreasedshort2termnitrogenavailabilityandleac2hingintwograincropagroecosystems[J].SoilBiolBio2chem,1997,29(3-4):413-421.[4]CantiMG.Earthwormactivityandarchaeologicalstra2tigraphy:Areviewofproductsandprocess[J].JAr2chaeolSci,2003,30(2):135-148.[5]SchaeferM,JulianeF.Theinfluenceofearthwormsandorganicadditivesonthebiodegradationofoilcontamina2tedsoil[J].ApplSoilEcol,2007,36(1):53-62.[6].(4)[M].:,2002.[7],.[J].,1996,(1):36-42.[8],,.[M].:,2000.[9].[M].:,1989.[10]DavisonL,HeadleyT,PrattK.Aspectsofdesign,struc2ture,performanceandoperationofreedbedseightyearsexperienceinnortheasternNewSouthWales,Australia[J].WaterSciTechnol,2005,51(10):129-138.[11]TognettiC,MazzarinoMJ,LaosF.Improvingthequalityofmunicipalorganicwastecompost[J].BioresourTech2nol,2007,98(5):1067-1076.[12],,.[J].,1998,20(4):12-15.[13],,.[J].,2003,33(3):359-362.:(1981-),,,,:15951914370E-mail:[e-mail]:2008-12-29(19)[2]ZitomerDH.StoichiometryofcombinedaerobicandmethanogenicCODtransformation[J].WaterRes,1998,32(3):669-676.[3],,,.[J].,2005,5(6):78-82.[4].(4)[M].:,2002.[5]PereboomJHF.Sizedistributionmodelformethano2genicgranulesfromfullscaleUASBandICreactors[J].WaterSciTechnol,1994,30(12):211-221.[6],.[M].:,2004.[7],,,.[J].,2003,19(8):19-22.[8],.[J].,2007,6(1):102-108.[9],,.SO2-4[J].,2008,3(8):74-77.:(1983-),,,,:13751846193E-mail:[e-mail]:2008-12-1142259