低溶解氧下微膨胀污泥对污染物的去除性能

1,2,1,3,1,1,4,1,3,3(1.,150090;2.,150076;3.,100022;4.,100022):SBRDO0.30mg/L,/:,SS,COD80%90%,25%,:SBR;/;;;;:X703:A:1000-4602(2009)15-0011-04PollutantRemovalEfficiencyofMicro2bulkingSludgeunderLowDOZUOJin2long1,2,WANGShu2ying1,3,PENGZhao2xu1,JIANGAn2xi1,LIUYang4,PENGYong2zhen1,3,SUNZhi2rong3(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.DepartmentofEnvironmentalEngineering,HarbinUniversityofCommerce,Harbin150076,China;3.CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100022,China;4.ChinaWaterHoldingsPte.Ltd.,Beijing100022,China)Abstract:Thesequencingbatchreactor(SBR)operatedinaerobic/anoxicprocesswithmeanDOvalueof0.30mg/Lwasusedtoinvestigatepollutantremovalefficiencyofmicro2bulkingsludgeunderlowDO.Theresultsshowthatthereactorhasbetterpollutantremovalefficiencyunderfilamentoussludgebulking.TheeffluentSSvalueislow.TheremovalratesofCODandammonianitrogencanreachmorethan80%and90%respectively.Atthesametime,theaerationratecanbesavedby25%.Itisconclu2dedthatthetreatmentofdomesticsewagewithmicro2bulkingsludgeunderlowDOisfeasible.Keywords:SBRprocess;aerobic/anoxicprocess;lowDO;sludgemicro2bulking;pollu2tantremovalefficiency;energysaving:(50778005);(863)(2006AA06Z319);(EDBS07/1-53974092);,,,SVI150mL/g,[1][2],DO0.250.4mg/L,SVI150250mL/g(11251520098CHINAWATER&WASTEWATERVol.25No.15Aug.2009),SBR,[34]SBR,1111,COD,NH+4-NNH4ClKH2PO4NaHCO3,;MgSO4CaCl2Mg2+Ca2+11Tab.1RawwastewaterqualitypHCOD/(mgL-1)NH+4-N/(mgL-1)PO3-4-P/(mgL-1)6.58310356405035112SBR11SBRFig.1SchematicdiagramofSBRSBR,,,700mm,200mm,12L,3L,0.2510cm,,,pHDOORP,(251)SBR/(O/A),180d,3,8h,(2h)(0.5h,)(2h),1015d,MLSS28003200mg/L113COD:5B-3COD;NO-3-N:;NO-2-N:N-(1-)-;NH+4-N:;MLSSSS:;PO3-4-P:;DO:WTWinoLabOxilevel2;:OLYMPUSBX51/BX522211,DO2mg/L,1,(O),DO0.40.7mg/L,1O,DO0.250.4mg/L,SVI200mL/g,,212SS21211,,,,,,21212SS,SBR,(SS12mg/L),,,,,,,;,,212515(SND),SND[5],DO,DO,DOHanaki[6],DO,1,DO,,,,,,21313,O/ASBR,ODO,DO,33Fig.3VariationofPO3-4-Pconcentrationwithtimeintypicalperiod3,PO3-4-P1mg/L,,NO-2-N,214DODO44DOFig.4VariationofDOwithtimeintypicalperiodDO0.30mg/L,110minDO,0.20.4mg/L,COD110120minDO0.4mg/L1.2mg/L,31:2515DO,COD50mg/L,NH+4-N5mg/L,PO3-4-P1mg/LDO,,,DO,OA()4ADO0.1mg/L,,0.5h23,,0.02mg/L1.8mg/L;,,1.68mg/L215,DO,,,DO0.30mg/L,30L/h,DO=2mg/L(40L/h),25%3,,,COD80%;90%,SNDDO0.3mg/L,,25%:[1]KruitJ,HulsbeekJ,VisserA.Bulkingsludgesolved?[J].WaterSciTechnol,2002,46(1-2):457-464.[2],,,.SBR[J].,2004,20(8):40-42.[3]RordriguesAC,BritoAG,MeloLF.Posttreatmentofabrewerywastewaterusingasequencingbatchreactor[J].WaterEnvironRes,2001,73(1):45-51.[4],,.SBR[J].,2004,24(4):576-580.[5]YooH,AhnKH,LeeHJ,etal.Nitrogenremovalfromsyntheticwastewaterbysimultaneousnitrificationanddenitrification(SND)vianitriteinanintermittently2aera2tedreactor[J].WaterRes,1999,33(1):145-154.[6]HanakiK.Nitrificationatlowlevelsofdissolvedoxygenwithandwithoutorganicloadinginasuspended2growthreactor[J].WaterRes,1990,24(3):297-302.:(1970-),,,,:13009853539E-mail:[e-mail]:2009-03-20(10),,:[1].(3)[M].:,1997.[2].[M].:,1999.[3]ReedSC,CritesRW,MiddlebrooksEW.NaturalSys2temsforWasteManagementandTreatment[M].NewYork:McGraw2HillProfessional,1998.[4],.[J].,2003,17(1):15-17.:(1977-),,,,,:[phone]E-mail:[e-mail]::2009-02-20412515