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1 10环境工程学报Vo.l1,No.10200710ChineseJournalofEnvironmentalEngineeringOct.2007DOSBR杨岸明1,2 王淑莹1* 杨 庆1 郭建华3 彭永臻1 薄凤阳4(1.,100022;2.,100022;3.,150090;4.,102600) 。SBRpH、DO,DO,60m3SBR,pH、DO,———f。,,pH,f;3.0mg/L4.0mg/L,DO、pH、f,,。 (pH) X703.1 A 1673-9108(2007)10-0013-05ApilotscaleresearchonnitrificationcontrolparametersandenergysavingbyapplyingfrequencyconversiontechnologyoncontrollingDOofSBRYangAnming1,2 WangShuying1 YangQing1 GuoJianhua3 PengYongzhen1 BoFengyang4(1.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100022;2.BeijingMunicipalDrainageCorporation,Beijing100022;3.TheSchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090;4.BeijingWanweibodaAutomaticControlLimitedCompany,Beijing102600)Abstract Theadjustmentofaerationratebasedontheoxygendemandofmicroorganisminaerobicreactionisverycriticalundertheconditionofcurrentenergyshortage.InordertoinvestigatetheeffectofaerationrateadjustmentonthecontrollingparametersofSBR,suchaspHvalueandDO,frequencyconverterwasusedtoad-justtheaerationrateandcontrolDOatdifferentlevels.60m3volumeSBRreactorwasusedtotreatthedomesticwastewaterofBeixiaoheWWTPinBeijing.ItwasinvestigatedthattherelationshipbetweentheparameterssuchaspHvalueandDOinthenitrificationprocessandtheprocessoforganicdegradationandnitrification.Anewcontrolparameter-frequencyoffrequencyconverter,calledfforshort,wasalsointroduced.Accordingthere-sults,whenthecontrolledDOconcentrationislow,thepHvaluecouldnotbeusedascontrolparameterofnitri-ficationcompletion,butthejudgmentofthecompletenitrificationcouldbebasedonthefrequency.WhentheDOconcentrationwascontrolledat3.0mg/Land4.0mg/Lrespectively,DO,pHvalueandfrequencyofcon-vertercouldbeusedasthecontrolparametersofcompletenitrification.Thefrequencycontrollingcanalsode-creasetheenergyconsumptionoftheblowerperhoureffectively.Keywords SBR;frequencyconversiontechnology;DO;pH:“863”(2004AA601020);“863”(Z0005186040421);“”(2006BAC19B03):2006-12-12;:2007-06-01:(1975～),,,,。E-mail:anmyang@sina.com* SBR,,,[1,2]。,SBR[3]。,pH、DOORPSBR[4～7],,1DO,,,,、。DOSBR。60m3SBR,DO,———(f),DODO、fpH,DO,SBR。1 ,SBR1,60m3,。,,DO、pHf。DO,DO(4～20mA);,,。1 SBRFig.1 SchematicdiagramofexperimentalsystemandcontrolequipmentinSBRprocess MLSS3000mg/L,26℃。DO1.5、2.0、3.04.0mg/L4,,:COD(),MLSS(),pH(WTW),DO(WTW)f(STARDRIVE),SV%(100mL),NO-2-N[N-(1-)-],NO-3-N(),NH+4-N()。,1。1 Table1 WaterqualityofinfluentintheexperimentCOD(mg/L)NH4-N(mg/L)NO2-N(mg/L)NO3-N(mg/L)pH/120/21040/800/0.30.15/0.757.0/7.3165600～0.90.457.22 2.1 DO1.5mg/L、2.0mg/LpH、f、DO23,50min(A),COD60mg/L57mg/L40mg/L,,COD,,,。,,DO。DO1.52.0mg/L,,50Hz,,DO。DO1.52.0mg/L。,、。1410:DOSBR2 DO1.5mg/LCODNH+4-NpH、f、DOFig.2 VariationofpH,f,DO,NH+4-NandCODversustime(DO=1.5mg/L)3 DO2.0mg/LCODNH+4-NpH、f、DOFig.3 VariationofpH,f,DO,NH+4-NandCODversustime(DO=2.0mg/L)2,2,AB,A,f。AB,NH+4-N,,,f。B,NH+4-N0,,,fB。3,DO2.0mg/LfABDO1.5mg/L,(B)f,f(B)。:,NH+4-N,,f,DO2.0mg/L,DO,f。,fBB,。,NH+4-NNO-2-NNO-3-N。2,,H+。CO2CO2,CO22pH。,,pH;,CO2,pH,“”,。23,pH,AB,,。pH“”。:,NH+4-N,,OUR(),DO1.52.0mg/L,A。CO2,,pH,pH“”。DO1.52.0mg/L,pH。3,A,COD,COD,。,。,。A,pH,AB。,H+。2.2 DO3.0mg/L、4.0mg/LpH、f、DO45,DO3.04.0mg/L。B,DO(3.04.0mg/L),。DO、pH。1514 DO3.0mg/LCODNH+4-NpH、f、DOFig.4 VariationofpH,f,DO,NH+4-NandCODversustime(DO=3.0mg/L)5 DO4.0mg/LCODNH+4-NpH、f、DOFig.5 VariationofpH,f,DO,NH+4-NandCODversustime(DO=4.0mg/L),,pHA。,,DO,pHCO2“”(B)。DO3.0mg/L、4.0mg/L,DOpH。45,,DO3.04.0mg/L,,。,DO,3.04.0mg/L,f。,pHDO,,,,,。,B,fB。,pHDO,fB。4C3。5C,,。,DO3.04.0mg/L,,DO3.04.0mg/L,,DO、pH,f,DOpH。2.3 DO,DO1.5、2.0、3.04.0mg/L,,6DO1.5、2.03.0mg/LDO,,DO3.0mg/L4.0mg/L,,DO3.0mg/L。615。,,。,,;,,。,DO,DO,DO(4～20mA)。DO,DO,。DO,DO,。pt(power/time),:pt=(kW)pt,,DO。1610:DOSBR6,DO,pt,,。DO,。DO2.0mg/L,。DO1.5mg/L,DO,,,,DO2.0mg/L,DO。,DO,;DO2.0mg/L,,,。6 DOFig.6 PowerconsumptionatdifferentDOlevels3 (1)DO1.52.0mg/L,,,DO1.52.0mg/L,CO2,pH“”,pH。 (2)DO3.04.0mg/L,DO3.04.0mg/L,,,DO、pH。。(3)DO1.5、2.0、3.04.0mg/L,,,———,。(4),DO2.0mg/L,,DO,。[1]RodriguesAnaC.,AntonioG.Brio,MeloLuisF.Postt-reatmentofabrewerywastewaterusingasequencingbatchreactor.WaterEnvironmentResearch,2001,73(1):45～51[2]PiersonJohnA.,PavlostathisSpyrosG.Realtimemonito-ringandcontrolofsequencingbatchreactorsforsecondarytreatmentofapoultryprocessingwastewater.WaterEnvi-ronmentResearch,2000,72(5):585～592[3],,.pHSBR.,2003,9(5):549～553[4],,,.SBR.,1998,18(5):415～418[5],,.DO、ORPpHSBR.,2001,17(4):6～11[6]AkinB.S.,UgurluA.Monitoringandcontrolofbiologicalnutrientremovalinasequencingbatchreactor.ProcessBi-ochemistry,2005,40:2873～2878[7]YuRuey-Fang,LiawShu-Liang,ChangChang-Nan.Apply-ingreal-timecontroltoenhancetheperformanceofnitrogenremovalinthecontinuous-flowSBRsystem.Wa.tSc.iTech.,1998,38(3):271～28017