SBR生物脱氮运行控制方式的优化楼菊青

25420097WATERRESOURCESPROTECTIONVol.25No.4Jul.2009　　:(1973—),,,,,。E-mail:[e-mail],(,　310012):分析SBR系统处理城市污水的主要工艺参数及其对脱氮效果的影响。试验了多种运行控制方式,结果表明:①运行周期6h,SBR即可较好地完成污水有机物氧化和同时脱氮;将闲置阶段设置在进水和曝气两阶段之间,可大幅度提高TN的去除率。②闲置时间会影响脱氮效果,最佳闲置时间为30min;增加污泥负荷,可提高TN的去除率,但会降低NH3-N的硝化效果。:SBR;脱氮;运行控制方式:X703　　　:B　　　:1004-6933(2009)04-0070-03OperatingmodesoptimizationofbiologicalnitrogenremovalinSequencingBatchReactorsystemLOUJu-qing,GUOMao-xin(DepartmentofEnvironmentalEngineering,ZhejiangGongshangUniversity,Hangzhou310012,China)Abstract:ThemainprocessparametersandtheireffectsonbiologicalnitrogenremovalinanSequencingBatchReactor(SBR)systemtreatingmunicipalsewagewerestudied.Variousoperatingmodesweretestedandthefollowingconclusionscouldbedrawn:(1)Whentheoperationperiodwassixhours,nitrogenremovalandorganicoxidationcouldbeaccomplishedreadily,andtheremovalrateofTNincreasedgreatlywhentheidlingprocesswassetbetweeninfluentandaeration.(2)Theidlingtimeimpactedthenitrogenremoval,andthebestidlingtimewas30minutes.Asthesludgeloadincreased,thenitrificationofNH+4-NdecreasedandtheremovalrateofTNincreased.Keywords:SBR;nitrogenremoval;operatingmodes　　。,,、,[1]。,,、。,、SBR[2]。,,,pH,SBR、、。1　1.1　SBR,15cm,55cm,7.5L。1[3]。,,,DO。、、、、,1　·70·。1.2　,COD350mg/L,TN35mg/L。1。1　pHρ(COD)/(mg·L-1)ρ(NH3-N)/(mg·L-1)ρ(NO-2-N)/(mg·L-1)ρ(NO-3-N)/(mg·L-1)6.6～7.2327～41523.68～25.340.49～1.6110.85～13.641.3　COD;CM-02NNH3-N;ICS-90NO-2-N、NO-3-NPO3-4-P;TOC-4100TOC;WTWOxi170DO;MA235pHpH;XSP-3C;MLSS[4]。2　2.1　,。DO3.0mg/L,8h[5]。2,2500mg/L,,,,COD30mg/L,NH3-N2mg/L,CODNH3-N90%,,TN,SBR。2.2　SBR“、、、”,1,。8h,2。10dNH3-N、NO-3-N2,NH3-N、TN3。2　ⅠⅡ/min/min303037040403703040403023,NH3-N,Ⅰ、ⅡNH3-N2　NH3-N、NO-3-N3　NH3-NTN(1mg/L),,,TN,2。ⅡNH3-NⅠ,TNⅡⅠ,33.2%77.1%。2,ⅠNO-3-NⅡ,TN,2,Ⅰ。Ⅱ。,Ⅰ(、、、),DO,,。,Ⅱ,A,,,A/O,,。·71·2.3　MLSS3000mg/L,DO1.0～2.0mg/L,Ⅱ10h,1,2h1,COD、NH3-N、NO-2-N、NO-3-N,1COD、NH3-N4。4　CODNH3-N14,SBR1,COD、NH3-N,4h,84.6%91.4%,COD4h398mg/L100mg/L,6h60mg/L。,90%,。NH3-N4h,6h,29.09mg/L0.38mg/L,。,NO-2-N1mg/L,NO-3-N10mg/L,NH3-N。,,,。、,6h。2.4　,2.3,16h,4h,20min、30min45min3,103。3　COD、NH3-N、TNmg/L/minρ(COD)ρ(NH3-N)ρ(TN)2037416.324.70.9032.210.43034317.823.70.4833.37.54536922.923.51.0732.97.7,NH3-N,CODNH3-N,,3,20min30minTN,30min。NH3-NSBR,,,,,30min,,。,,。2.5　C/N,,C/N,。MLSS,2.4,30min,COD、NH3-N、TN5。5　COD、NH3-N、TN5,(0.2kg/(kg·d),,95%,,COD。,DO,,DO,。NH3-N,,[7],,,DO,。TN,,,,,TN(下转第81页)·72·。c.。,,,,。,。d.。、,,,。e.。,、,,,,,,,、。:[1],.[J].,2001,22(18):27-28.[2]ALBERINIA.Environmentalregulationandsubstitutionbetweensourcesofpollution:anempiricalanalysisofFlorida'sstoragebanks[J].JournalofRegulatoryEconomics,2001,19:55-79.[3]BENDOWJ.ChallengesofTransboundarywatermanagementintheDanubeRiverbasin[J].InternationalWaterResource,2005,46:73-82.[4],.[J].,2000(2):92-93.[5],.[J].,2000,15(3):112-117.[6]VANEGTERENH.Maximumvictimbenefit:afairdivisionprocessintransboundarypollutionproblems[J].EnvironmentalandResourceEconomics,1997,10(4):363-386.(:2008-04-18　:)(上接第72页)[3]。,NH3-N,NH3-N,NH3-NNO-3-N,[8],1mg/LNH3-N3.38mg/LNO-3-N,NH3-N1mg/L,NO-3-N3.38mg/L,,NO-3-N,TN,。3　　a.6h,DO1.0～2.0mg/L,SBR。b.SBR、、、、,TN,SBR40%;NH3-N,。c.,ρ(COD)350mg/L、ρ(TN)35mg/L,30min;,。d.BOD0.2kg/(kg·d),TN,NH3-N。:[1]MASUDAS,WATANABEY,ISHIGUROM.Bio-filmpropertiesandsimultaneousnitrificationanddenitrificationinaerobicrotatingbiologicalcontactors[J].WaterSciTech,1997,23(9):1335-1363.[2]ELISABETHVM.Simultaneousnitrificationanddenitrificationinbenchscalesequencingbatchreactor[J].WatRes,1996.30(2):277-284[3],,,.SBR[J].,2005(4):29-32.[4].[M].4.:,2002.[5]YANGW,VOLLERTSENJ,HVITVEDJT.Nitriteaccumulationinthetreatmentofwastewaterswithhighammoniaconcentration[J].WaterSciTech,2003,48:135-141.[6],,,.DO[J].,2004,20(5):13-16.[7]PENGYZ,CHENY,PENGCY,etal.Nitriteaccumulationbyaerationcontrolledinsequencingbatchreactorstreatingdomesticwastewater[J].WaterSciTech,2004,50(10):35-43.[8],,.[M].:,2005.(:2008-07-25　:)·81·