表面流人工湿地设计的改进及污水净化效果的研究唐皓

2005,24():125-129JournalofAgro-EnvironmentScience唐皓,项学敏,周集体(,　116023):,。,,,,CODCr86.98%、93.69%,TN84.27%、72.76%;PO3-492.17%、95.78%,TP91.33%、95.46%。,,,。:;;:X505:A:1672-2043(2005)-0125-05ImprovementoftheDesignandPurificationPerformanceofSurface-flowConstructedWetlandTANGHao,XIANGXue-min,ZHOUJi-ti(SchoolofEnvironmentalandBiologicalScienceandTechnology,DalianUniversityofTechnology,Dalian116023,China)Abstract:Thetechnicaldesignofsmall-scalesurface-flowconstructedwetlandsystemwasdescribedwithdetailsofsomeas-sociatedpurificationeffectsofmunicipalwastewaterwithdifferentconcentrations.Plotswerecomposedofthreestagesinseriesandsomereformswereadoptedinthedesignoftheconstructedwetland.Depthsofthewetlandwasincreasedinordertoformananaerobicregionineveryplot,whichhadthesamefunctionasanaerobictankandreducedtheareaofthewetlandsystem.Thenewsubstrate,ceramicpellet,replacedsoilandgravelasthestuffingofthewetland.Twokindsofwastewaterwithlowandhighconcentrationswerepurifiedintwostages.Thelowconcentrationsewagewastreatedinthefirststage,andthehighcon-centrationsewageinthesecondstage.Forthesetwosewages,theaverageremovalratesofCODinthe3rdplotwere86.98%and93.69%,thereductionsofTNwere84.27%,72.76%respectively,andtheconcentrationsofNO-2-NandNO-3-Nwerelow,themeanremovalratesofPO3-4were92.17%,95.78%,andremovalratesofTPwere91.33%and95.46%.Thetreatmentefficiencyofthissurface-flowconstructedwetlandwasinfluencedbytemperatureandtheclimateandwasaneffec-tivetechnologyinimprovingthewaterqualityandrestoringtheaquaticecosystems.Keywords:constructedwetland;surfaceflow;wastewatertreatment,,,。,,。:2005-01-28:(1978—),,,。E-mail:[e-mail],、。,,、。,,,“”。,。,。11.1,。1:1　Figure1　Flowoftheconstructedwetlandsystem(1)1.0m、0.7m,(),,。11.5m,2、31.2m,。,,。(2)。,7～8mm,180cm,2、360cm;,2.5～3.5mm,140cm,2、330cm。[1],,。(3)。20043,。1.2,。250Ld-1,120mmd-1。1,15mm。,,。2、3。2,41727,8101221。,。1.3,,NP。1,2。1()Table1Influentwaterqualityofthefirststageexperimentinconstructedwetlandsystem(averagevalue)/mgL-1(COD)191.41(37.48)/mgL-10.04(0.013)(TN)11.76(2.77)(TP)1.69(0.33)1.18(0.45):,。2()Table2Influentwaterqualityofthesecondstageexperimentinconstructedwetlandsystem(averagevalue)/mgL-1(COD)425.01(55.64)/mgL-10.0384(0.019)(TN)29.80(4.97)(TP)4.68(0.74)4.01(1.04)1.4,:COD()、(—)、()、(—)、()、(N-(1-)-)。《》[2]。22.120043,,。4,123。1、23。11,1210。2.2(COD)20044,2COD。41,2,4,5,126　　:2005972.93%、83.31%、86.98%。810,。3,52.27%、89.64%、93.69%。2,2。、[3],。2　CODFigure2　RemovalratesofCODineffluentsinthefirststageofexperiment3　CODFigure3　RemovalratesofCODineffluentsinthesecondstageofexperiment,,,610。,10,1,,,。2、3。2.3N2.3.12004412,2。41727,4,53.56%、71.55%、84.27%。8201221,37.43%、57.48%72.76%。、2。,8%～16%[4],N。,;,。5,1013,。,,,。,。4　Figure4　RemovalratesofTNineffluentsinthefirststageofexperiment5　Figure5　RemovalratesofTNineffluentsinthesecondstageofexperiment2.3.267,,0.04mgL-1;。,。76,,。2.4P127　24　　　　　　　6　Figure6　ConcentrationsofNO-2ininfluentsandeffluentsinthefirststageofexperiment7　Figure7　ConcentrationsofNO-2ininfluentsandeffluentsinthesecondstageofexperiment。(41727),86.85%、91.24%、92.17%,74.75%、86.50%、91.33%;(8101221),58.88%、78.99%、95.78%,51.92%、76.05%、95.46%。8～11。,。,A-A-O。,P,,。8、10,P,,[5～7]。610P,100%,,,,8　Figure8　RemovalratesofPO3-4ineffluentsinthefirststageofexperiment9　Figure9　RemovalratesofPO3-4ineffluentsinthesecondstageofexperiment10　Figure10　RemovalratesofTPineffluentsinthefirststageofexperiment。10,,,。32004412,N、P,128　　:2005911　Figure11　RemovalratesofTPineffluentsinthesecondstageofexperiment,。,。,,;,。:[1],,,.[J].,1999,33(6):88-92.[2]ChineseEPA().MethodsofWaterandWastewaterDetermination.3rdedi.tBeijing:ChinaEnvironmentalSciencePress(inChinese),1989.[3].-[J].,1996,9(1-2):1-8.[4],,.[M].:,1991.[5]GersbergRM.ElkinsBV,LynonSR,eta.lRoleofAquaticPlantsinWastewaterTreatmentbyArtificialWetlands[J].WatRes,1986,20(3):363-368.[6]BrixH.FunctionsofMacrophytesInConstructedwetlands[J].WatSciTech,1994,29(4):71-78.[7]TannerCC,ClaytonJS,UpsdellMP.EffectofloadingRateandPlantinginConstructedWetlands———Ⅱ,RemovalofNitrogenandPhosphorus[J].WatRes,1993,29(1):27-34.129　24