低CN比污水生物脱氮所需外加碳源量的确定

:2003-01-27:(40272108);:(1968-),,,,CN金春姬1,佘宗莲1,高京淑2,成乐昌2,金秀生2(1.,266003;2,604-714):,,(CN),,:;CN;;:X7031:A:1001-6929(2003)05-0037-04DeterminationofDemandofExternalCarbonSourceforBiologicalNitrogenRemovalofWastewaterwithLowCNRatioJINChunji1,SHEZonglian1,KOKyongsuk2,SUNGNackchang2,KIMSoosaeng2(1.CollegeofEnvironmentalScienceandEngineering,OceanUniversityofChina,Qingdao266003,China;2.DepartmentofEnvironmentalEngineering,DongAUniversity,Busan604714,Korea)Abstract:Inthisstudy,toachievenitrogenremoval,anintermittentaerationpilotplantwasappliedtoupgradeexistingactivatedsludgesystem.Throughthetest,theimpactsofCNratioonnitrogenremovalefficiencyanddenitrificationratewereinvestigated,anddenitrificationcapacitywasdiscussedtodeterminethedemandofexternalcarbonsource.Keywords:biologicalnitrogenremoval;lowCNratio;intermittentaeration;externalcarbonsource,,,,2,,,,,,,-(SimultaneousNitrificationDenitrification,SND),,111BOD5(255mgL,90mgL),,1BOD5,,BOD5TN21Table1InfluentwastewatercharacteristicsmgLBOD530.4~128.171.7TN20.8~131.454.2CODCr88.9~495.6234.96.7~67.829.4TSS51~432157.5TP0.5~4.71.812,,1(5m3)165ResearchofEnvironmentalSciencesVol.16,No.5,2003(15m3)(46m3)(22m3),Solenoidevalve,pHORP,pH72,,123~29,HRT7h,TN005kg(kgd),60min,60min,(99%)50,120,190,250mgL4(COD,)33,51,73911;2;3;4;51Fig.1Schematicdiagramofintermittentaerationpilotplant13,StandardMethodsFortheExaminationofWaterandWastewater[1][2],CODCr,COD,TN,NH3-N,NO2-N,NO3-N,TSS,VSS,SV30,pH,ORP,DO221CN2CNTNCN,594%86%,18mgL8mgL,20mgL,NO3-N95mgL06mgL,11~20mgL,94%,(ORP):CNORPORP,ORP3CNORP2CNFig.2TNremovalefficiencyandeffluentTNwithdifferentCNratioCN:133;251;371;4913CNORPFig.3TemporalvariationofORPindifferentCNratioconditionCN33,51,7391,ORP165,112,141,138mV,ORPCNORP[3]ORP,ORP80~200mV,15minORP,70~126mV,,-15min,CN3351ORP15min20~40mVCN7391,45min,ORP2CN,45min,ORP70mV,-100-137mVORP[4],ORP-100~-200mV[3]BenKoopmann[5]NO3-NORPCN73816ORP22CN,CN(Specificdenitrificationrate,SDNR)2,CN,266mg(gh)412mg(gh),15[6],,2CNTable2EffectofCNratioondenitrificationrateCN(mgg-1h-1)3.32.665.13.637.34.049.14.12(R)[7]:R=[003(FM)+0.029]128(1)(1)Bardenpho,,,[8](1)(3),3FMTable3SDNRasafunctionofanoxicFMratiokg(kgd)FM0.280.0660.0480.410.0870.0530.540.0970.0580.680.1000.06323,,,CN(4)(SCOD)BOD5CN3351,7391,SCOD,(TNSCOD)BOD5,TNBOD5,CN51026,CN91020CN91,,4CNFig.4RelationshipbetweenCNratioanddenitrificationcapacityTN(20mgL),120mgL(),SCODTN5:,1mgNO3-N247mg(CODCr371mgL),95%,3mg(CODCr45mgL)Nyberg[9](gCODNO3-N,)021,IAWQASM-1[10]0103,Adams[11]0107,John[12]0035~0071,Y.Argaman[13]J.Decker[14]017016~026(gBOD5),,3a.CN,594%86%,18mgL8mgL,20mgL,11~20mgL,94%,b.CN7391,NO3-NORP,ORP-100-137mVCN7ORP395:CNc.CN,266mg(gh)412mg(gh),15d.120mgL(),SCODTN5:[1]APHW,AWWA,WPCF.Standardmethodsfortheexaminationofwaterandwastewater[M].17thedition.Washington:USA,APHA,1981.[2].[M].:,1998.[3],,.ORP[J].,1987,29(4):38-45.[4].!∀#∃∀[J].,1984,21(245):66-75.[5]KoopmanB,ThomasGP,SpyrosAS.Optimizationofaperiodicbiologicalprocessfornitrogenremovalfromwastewater[J].KSEE,1995,17(6):499-516.[6]SuttonPM.Lowtemperaturebiologicaldenitrificationofwastewater[J].WPCF,1975,47:122.[7]BurdickCR,ReflinDR,SenselHD.Advancedbiologicaltreatmenttoachievenutrientremoval[J].WPCF,1982,54:1078-1086.[8]USEPA.Manualnitrogencontrol[M].Washington:USEPA,1993.[9]NybergU,AspegrenH,AnderssonB,etal.Fullscaleapplicationofnitrogenremovalwithmethanolascarbonsource[J].WaterSciTech,1992,26(56):1077-1086.[10]GradyCPL,GujieW,HenzeM,etal.Amodelforsinglesludgewastewatertreatmentsystem[J].WaterSciTech,1986,18:47-61.[11]AdamsCFJr,EckenfelderWWJr.Nitrificationdesignapproachforhighstrengthammoniawastewater[J].WPCF,1977,49:413-421.[12]JohnRegan,BenKoopman,SpyrosA,etal.FullscaletestofmethanoladditionforenhancednitrogenremovalinaLudzackEttingerprocess.[J].WaterEnvironRes,1998,70(3):376-381.[13]YerachmielArgaman.Energeticsofsinglesludgenitrogenremoval[J].WaterRes,1985,19(2):1505-1513.[14]DeckerJ.Untersuchungenzurnitrifikationunddenitrifikationineinundzweistufigenbelebungsanlagen[J].KorrespndenzAbwasser,1985,92(39):197-202.2004,,1985,;;;:,,,,:,:28-298,,6,36,30,,:1:210098:[phone]:[phone]:[e-mail]4016