不同基质和植物人工湿地净化效果试验陈润

26420107WATERRESOURCESPROTECTIONVol.26No.4Jul.2010DOI:10.3969/j.issn.1004-6933.2010.04.017　　:(1985—),,,,。E-mail:[e-mail]　1,2,3(1.,　210098;2.,　224000;3.,　214024):分别以高炉渣、瓜子片、碎石为基质,美人蕉、黑三棱草、野茭白为植被构建人工湿地模拟系统,对其净化效果进行试验研究。结果表明,种植植物的湿地系统比未种植植物的湿地系统净化效果好,不同植物同种基质湿地系统对不同指标的净化效果各不相同,如不同植物对NH3-N和TN的净化效果从高到低顺序为:黑三棱草,美人蕉,野茭白;同种植物不同基质湿地系统对不同指标的净化效果也不同,不同基质对NH3-N和TN的净化效果从高到低顺序为:碎石,高炉渣,瓜子片。对NH3-N和TN浓度较高的污染环境,采用碎石为基质、黑三棱草为植被的人工湿地系统效果最佳。:人工湿地系统;基质;水生植物;净化效果:X171.4　　　:B　　　:1004-6933(2010)04-0062-05ExperimentalstudyonpurificationeffectofconstructedwetlandwithdifferentsubstratesandplantsCHENRun1,CHENZhong-xiang2,MOLi-juan3(1.CollegeofHydrologyandWaterResources,HohaiUniversity,Nanjing210098,China;2.DongtaiWaterConservancyConstructionCompanyLimited,Yancheng224000,China;3.MonitoringBureauofHydrologyandWaterResources,TaihuBasinAuthority,Wuxi214024,China)Abstract:Constructedwetlandsimulationsystemswithblastfurnaceslag,melonslices,andgravelassubstrates,andcanna,sparganiumgrass,andwildricestemasvegetation,wereconstructed,andexperimentsonthepurificationeffectofTN,NH+3-N,TP,andCODCrwerecarriedout.Thepurificationeffectwasmoreobviousinwetlandswithplantsthaninwetlandswithoutplants.Constructedwetlandsystemswithdifferentplantsreacteddifferentlytothepurificationeffectinthesamesubstrate,andtheorderofthepurificationeffectofdifferentplantsforNH+3-NandTNwasrhizomascirpiyagaraecannaindicazizaniaaquatica.Thesameplantsinadifferentsubstratealsohaddifferentpurificationeffects,andtheorderofthepurificationeffectsforNH+3-NandTNwasgravelblastfurnaceslagmelonslices.Therefore,withhighNH+3-NandTNconcentration,theconstructedwetlandusinggravelasthesubstrateandrhizomascirpiyagaraeasthevegetationwasthemosteffectivesystem.Keywords:constructedwetlandsystem;substrate;aquaticplants;purificationeffect　　,、、、,,[1-6]。,、、,、、,[7-8]。[9]。、、,(canna)、(sparganiumgrass)、(wildricestem)·62·,N、PCOD,。1　1　1.1　:,。8～10cm(15cm),2。:、,。20～35mm,25～45mm,10～15mm。,:56cm×46cm×35cm。PVC,,,。,、3。3,、。,31,1。1　1234567891011121.2　1.2.1　试验过程20087,,1,,,2。,pH,Ⅴ。3,,6d。,8。320L,0.013m3/(m2·d)。,。1,,pH、TN、NH3-N、TPCOD,。1.2.2　检测方法[10]。。:η=(C0V0-CiVi)/(C0V0)×100%:C0;V0;Cii;Vii。2　2.1　TNNH3-NTNNH3-N1、23。,3,TN,34%,TN15%13%。,,[11],TN72%,60%48%。·63·2　3　3NH3-NTN。,、NH3-N31%、13%12%。,,,、NH3-N72%、52%44%。TN、NH3-N4。4　TN、NH3-N　　,TN、NH3-N,3[12]:①,、、3NH3-N,NH3-N;②、,NH3-N-;③,。,,、、TN、NH3-N,TNNH3-N。TNNH3-N:,,;NH3-NTN:,,。2.2　TPTP5。,、、,[13]。5,3TP,TP85%。,TP[14],TP。TP·64·5　TP6　COD95%,90%,85%。5,TP。,TP,。,TP,。,TP97%,77%,20%。,,。,,TP。、TP。TP:,,;TP:,,。2.3　CODCOD6。6,COD。COD,,COD[15]。6,COD。,COD,COD。COD,COD,COD72%、57%,15%。,COD,。,COD:,COD、,,COD,,,,COD。,COD,COD,COD。COD:,,;COD:,,。3　　a.。NH3-NTN:,,;TP·65·:,,,COD:,,。b.。NH3-NTN:,,;TP:,,;COD:,,。c.NH3-NTN,、;TP,、;COD,、。d.()。,。:[1]GILLESPIEB,HAWKINSB,RODGERSH,etal.Transfersandtransformationofinconstructedwetlands:mitigationoffarefinerof-fluent[J].EcologicalEngineering,2000,14:279-292.[2]JUWARKARAS,OKEB,JUWARKARA,eta1.DomesticwastewatertreatmentthroughconstructedwetlandinIndia[J].WatSciTech,1995,32(3):291-294.[3],,.[J].,2002,8(6):614-617.[4],.[J].,2002,13(6):719-722.[5],.NP[J].,2002,28(10):12-15.[6]BRASKERUDBC.Factorsaffectingphosphorusretentioninsmallconstructedwetlandstreatingagriculturalnonpointsourcepollution[J].EcologicalEngineering,2002,19:41-61.[7],,.[J].,2007,27(3):1226-1232.[8]KNIGHTRL.Constructedwetlandsforlivestockwastewatermanagement[J].EcologicalEngineering,2000,15:41-55.[9],,.[J].,2008,28(8):3691-3697.[10].[M].4.:,2002.[11],,,.4N、P[J].,2005,24():94-98.[12],.[J].,2003,22(1):48-51.[13],,,.[J].,2003,22(3):290-292.[14]TANNERCC.Plantsforconstruetedwetlandtreatmentsystems:aeomparisonofthegrowthandnutrientuptakeofeightemergentspecies[J].EeologiealEngineering,1996,7(1):59-83.[15],,,.[J].,1999,32(6):88-92.(:2009-03-30　:)(上接第42页)4　　a.2007,、、4DOSD,DO4,SD4。4Chl-a,NP。b.、4。、,。4,,;4,;,。c.、-,、,、-,,、。d.N、P,、。:[1]BONACCIO,ROJE-BONACCIT.TheinfluenceofhydroelectricaldevelopmentontheflowregimeoftheKarsticRiverCetina[J].HydrologicalProcess,2003,17:1-16.[2]CULLAJA,HASKOA,MIHOA,etal.ThequalityofAlbaniannaturalwatersandthehumanimpact[J].EnvironmentInternational,2005,31:133-146.[3].[M].4.:,2002.[4],.[M].:,1990:208-232.[5].[J].,2002(2):43.(:2009-02-16　:)·66·