复合填料地下渗滤系统的强化脱氮研究严群

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38520105()JOURNALOFTONGJIUNIVERSITY(NATURALSCIENCE)Vol.38No.5 May2010:0253-374X(2010)05-0697-07DOI:10.3969/j.issn.0253-374x.2010.05.012:2009-02-19:(2008ZX07421-002,2008ZX07407-007-1,2008ZX07421-001);(09dz1204107,09QA1406100): (1973—),,,.E-mail:yanqun8219893@163.com (1953—),,,,,,.E-mail:yishu@online.sh.cn严 群1,2,吴一蘩1,杨 健1,董卫华3(1.,200092;2.,341000;3.,310003):,55%、25%20%,10cm·d-1,4,TN.COD,NH+4-N,TN,,73.4%,98.2%20.1%;,75.4%,79.1%26.9%;,88.9%,88.5%55.7%.TN,,TN,;TN,TN22.8mg·L-114.2mg·L-1,CODNH+4-N.,TN.:;;;:X703 :AIntensifiedDenitrificationofCompoundMixedSubsurfaceWastewaterInfiltrationSystemYANQun1,2,WUYifan1,YANGJian1,DONGWeihua3(1.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.InstituteofArchitecturalandSurveyEngineering,JiangxiUniversityofScienceandTechnology,Ganzhou341000,China;3.MonitoringCentreforPublicFacilitiesofHangzhouCity,Hangzhou310003,China)Abstract:Inordertoimprovethehydraulicpermeabilityandintensifydenitrificationofsubsurfacewastewaterinfiltrationsystem,oneapparatuswasestablishedinapilotlaboratorywiththemediumsof55%cinder,25%soiland20%grasscarbonmixedcompletely.Theapparatuswasdosed4timesdailywithdomesticwastewaterat10cm·d-1.OperatingconditionswerechangedinordertoimprovetheremovalefficiencyofTN.TheaverageremovalefficiencyofCOD,NH+4-NandTNwere73.3%,98.2%and20.1%,respectively,whenoutletlocationwasatnormalposition.TheaverageremovalefficiencyofCOD,NH+4-NandTNwere75.4%,79.1%and26.9%,respectively,Whenoutletlocationwasheightened30cm,thebottomofapparatuswassubmergedsothatanaerobicenvironmentwasformed.TheaverageremovalefficiencyofCOD,NH+4-NandTNwere88.9%,88.5%and55.7%,respectively,whentheapparatuswasconductedinglucoseaddedindomesticwastewater.TheresultsshowthattheremovalofTNisnotimprovedbyaddinggrasscarboninapparatus;outletlocationraisingcanincreaseTNremovalefficiencyfrom20.1%to26.9%,buttheactionislimited;theglucoseaddedcanincreaseTNremovalefficiencyfrom26.9%to55.7%,andTNconcentrationofeffluentdecreasesfrom22.8mg·L-1to14.2mg·L-1;atthesametime,theremovalofCOD,NH+4-Nisnotaffected.SothecriticalfactoroftheTNremovalblockediscarbonabsent.Keywords:subsurfacewastewaterinfiltrationsystem;cinder;grasscarbon;municipalwastewater  ,--、[1],.,,,,,.S.   ()38 Vancuyk[2],8.4cm·d-1,COD,NH+4-NTN14,0,54mg·L-1,96.4%,100%4.8%,TN.[3]10%,4cm·d-1,NH+4-NTN83%69%95%80%.,,USEPA[4]10%,0.8~6.6cm·d-1,.,.,,、,.1 1.1 ,COD,NH+4-NTN124.1,22.831.2mg·L-1.1.2 ,1.00()×0.15()×1.00()m,0.90m,25%,20%55%.,.1.3 COD,NH+4-NTN,、[5].[1].1.4 ,.2006125311,10cm·d-1,8·d-1,45min·-1,60d;312410,10cm·d-1,8·d-1,45min·-1,30d;720831,10cm·d-1,8·d-1,90min·-1,43d.2 2.1 2.1.1 4%~10%,3.53cm·d-111232.00cm·d-1,0.35cm·d-11123.20cm·d-1,,,;.,,TN.2.1.2 (VSS)200g,,10cm,2.、VSS.[6],VSS[7].,,、、,.,,、、.VSS,,、VSS,1.698 5 ,:  1 VSSFig.1 VSSofsoilandcinder  、31.0%,24.1%,,,50%~60%,,,[8],.1,,,,VSS,VSS78.06mg·(g)-1,VSS9.04mg·(g)-1,,,,、、,;,,,,.,,[6],VSS.,,,.2.1.3 .,.[6,9],(1kg)(1h)NO-3-N(mg);(1kg)(1h)NO-3-N(mg),2.2 Fig.2 Nitrificationanddenitrificationintensityinsoilandcinder  2,.,,.,,,pH7.9~8.2,,;,,.,NO-3-N,NO-3-N,,NO3--N,NO-3-NN2N2O,,[10-11].,,,VSS,,,,.,.2.2 TN,:;.1;230cm,TN;3,CODTNTN.699   ()38 2.2.1 TN,COD,NH+4-NTN,3~5,TN,6.3 CODFig.3 RemovaleffectofCOD4 NH+4-NFig.4 RemovaleffectofNH+4-N5 TNFig.5 RemovaleffectofTN  3~5,,COD,61.0%~78.0%,73.4%,32.8mg·L-1;NH+4-N91.0%,0.4mg·L-1;TN,6.4%~28.8%,6 TNFig.6 ComponentanalysisofTNininfluentandeffluent20.1%,20.1mg·L-1;,,,,,NH+4-N.,,TN.6,,TN97.9%.,TN,,,COD0mg·L-1,1,COD2mg·L-1,;5,COD372mg·L-1,;,,,TN.TN,,,N2N2O,.6,TN22.7mg·L-1,,.,,TN,TN.,TN.2.2.2 TN30cm,30cm.,COD,NH+4-NTN7~9,TN10.700 5 ,:  7 CODFig.7 RemovaleffectofCOD8 NH+4-NFig.8 RemovaleffectofNH+4-N9 TNFig.9 RemovaleffectofTN10 TNFig.10 ComponentanalysisofTNininfluentandeffluent  7~10,COD,75.4%,30.7mg·L-1;NH+4-N79.1%,4.8mg·L-1,,;TN,26.9%,18.0mg·L-1;,TN78.8%,21.8%.,,,TN,TN,,TN,TN,.,TN,TN,,,,TN.,,TN.2.2.3 TN0.5~1.0g·L-1,COD,,COD,NH+4-NTN11~13,TN14,TNCOD/TN15.11~14,COD158.0~1166.0mg·L-1,426.9mg·L-1,COD88.9%,47.2mg·L-1,CODCOD;NH+4-N88.5%,2.5mg·L-1;TN701   ()38 11 CODFig.11 RemovaleffectofCOD12 NH+4-NFig.12 RemovaleffectofNH+4-N13 TNFig.13 RemovaleffectofTN14 TNFig.14 ComponentanalysisofTNininfluentandeffluent15 COD/TNTNFig.15 ChangeofTNremovalefficiencyfollowingCOD/TNrate,26.9%55.7%,14.7mg·L-1;,TN82.9%,17.8%;15,TNCODTN.,,TN.,45min,90min,,COD,,TN.VSS、VSS、,,,,,,,,;,,,,,TN.3 、,,,TN,,10cm·d-1,TN.:(1),、702 5 ,:  VSS,,,;(2),10cm·d-1,COD,NH+4-NTN73.3%,98.2%20.1%,TN;(3),10cm·d-1,TN,TN20.1%26.9%,;,98.2%79.1%.TN,;(4),TN26.9%55.7%,22.8mg·L-114.2mg·L-1,CODNH+4-N88.9%88.5%,.,TN.:[1] ,.[M].:,1991.GAOZhengmin,LIXianfa.Designmanualoflandandmunicipalwastewatertreatment[M].Beijing:ChinaStandardPress,1991.[2] VancuykS,SiegristR,LoganA,etal.Hydraulicandpurificationbehaviorsandtheirinteractionsduringwastewatertreatmentinsoilinfiltrationsystems[J].WatRes,2001,35:953.[3] ,,,.[J].,2004,20(6):41ZHANGJian,HUANGXia,SHIHanchang,etal.Municipalwastewatertreatedbysubsurfacewastewaterinfiltrationsystemaddedgrasscarbon[J].ChinaWater&Wastewater,2004,20(6):41.[4] USEPA.Onsitewastewatertreatmentsystemsma

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