MBBR的生物反硝化特性郑兰香

MBBR郑兰香1　彭党聪2(1.　750021;2.　710055)　　　　(MBBR)。NO-3-N0.32kg/(m3·d),MBBR33.7mg/g,100μm;COD166.5mg/(g·h),32.1mg/(g·h)。　　　MBBR　　　　CODTheCharacteristicsofBiologicalDenitrificationofMBBRZHENGLanxiang1　PENGDangcong2(1.SchoolofResourceandEnvironment,NingxiaUniversity　Yinchuan750021)Abstract　Thecharacteristicsofbiologicaldenitrificationofamovingbedbiofilmreactor(MBBR)isstudiedbasedonthediscussiononthedenitrificationprincipleofbiofilm.Undertheconditionofloadwith0.32kg/(m3·d),theaverageattachedbiomassis3.77mg/gandthethicknessofbiofilmisabout100μm;CODdegradationrateis166.5mg/(g·h)andnitratedegradationrateis32.1mg/(g·h).Keywords　MBBR　biomass　thicknessofbiofilm　nitratedegradationrate　CODdegradationrate　　。,COD、NO-3-N,,(1)。,。1　(MBBR),()(),,,。MBBR,。1　1.1　PM1[1],0.9～1.6mm,1.35mm,sature[2]1.51mm,1.05g/cm3。2,4.0L,100r/min,1.1L,27.5%。SBR,8,180min,5min,159min,1min,15min;2.0L,(HRT)6h。2　1.2　,,NH4Cl,Na2HPO4KH2PO4,COD/NO-3-N=5NaNO3,[3]1mL/L。1.3　COD;NO-3-N;NO-2-NN-(1-)-。:,105℃W0,700℃WW′,(W0-W)/(W-W′)VS(mg),VS(volatilesolid)VSS(volatilesuspendedsolid)[4]。2　2.1　,NO-3-N0.32kg/(m3·d),。、3、4。3、4,NO-3-N0.32kg/(m3·d),926,,VS33.7mg/g,、COD·33·2006328August2006　　　　　　　　　　　　　　　IndustrialSafetyandEnvironmentalProtection,SS120mg/L,。20。(VS+VSS)13.408g,(VS)12.048g。(VS+VSS)3.352g/L,(2～4g/L)。3　、COD,SS4　28d,200mL,。65d,、,(VS)33.7mg,SS120mg/L。,,。2.2　,,:,r,,δ,ρ,mi,:ρ4π3[(r+δ)3-r3]=mign,M,M=∑i=1…nmi,:M=∑i=1…nmi=nmi=nρ4π3[(r+δ)3-r3],δ:δ=3Mnρ4π3+r3-rρ=1.02g/cm3[5],0.135cm,r=0.0625cm,gn=845,g33.7mg,δ=114μm;sature,δ=95μm。,,,100μm。,,,。2.3　,[6],、、ATP、[7],COD(NUR)。COD,5。,,NO-3-NgVS32.1mg/h,CODgVS166.5mg/h。6,。,0.6mg/L。,。5　COD、NO-3-NVS=0.1415g6　NO-2-N、、(NO-3-N)gVSS7～20mg/h[8];ChudobaMixazur,10mg/(g·h)[9]。,,;,,,。3　·34·易新贵(　510000)　　　　,,,,,,,。。　　　　　TheApplicationofModifiedUnderflowManpowerSwampedLandTechnologyontheTreatmentfortheTownRiverSewageYIXingui(SouthChinaInstituteofEnvironmentalSciences,SEPAGuangzhou510000)Abstract　Modifiedunderflowmanpowerswampedlandtechnologyisappliedtotreattownriversewageandtheresultsshowthatithasgoodapplicationvaluetotreatthelivingandriversewage,withstablesystem,easyoperation,lowtechnicalrequirements,lowinvestment,lowrunningcostandgoodtreatmenteffects.Keywords　modifiedunderflowmanpowerswampedland　sewagetreatment　townriversewage　　,。,,,V,、。,。1　H,16km2,3.5km,。。V,、。1.1　1.1.1　,12kt/d,8kt/d,10kt/d。:Q=10kt/d,1.4,Q=14kt/d。1.2　1.2.1　1。1　mg/LCODCrBOD5SSTPNH3-N2401201003.02510.01.2.2　COD、BOD、SS《》(DB44/26-2001)　　MBBR)。(NO-3-N)0.32kg/(m3·d),MB-BR(VS)33.7mg,100μm,COD166.5mg/(g·h),32.1mg/(g·h)。1　..[].:,20042　,,,..(),2000,132(3)3　WFuchs,GSchatzmayr,RBraun.Nitrateremovalfromdrinkingwaterusingamembrane-fixedbiofilmreactor.ApplMicrobialBiotechnol1997(48):2672744　BruceERittmann,PerryL.Environmentalbiotechnology:PrinciplesandApplications,McCarty,:,()5　StefanWasche,HaraldHorn,DietmarC,etal.Influenceofgrowthcon-ditiononbiofilmdevelopmentandmasstransferatthebulk/biofilminter-face.WaterResearch,2002(36):477547846　,..,2002,22(1)7　,,..:8　MHenze.Capabilitiesofbiologicalandnitrogenremovalprocessesfromwastewater.WatSciTech,1991,23:6696799　PChudoba,MPannier,ATruc,etal.Anewfixed-filmmobilebedbioreactorfordenitrificationofwastewaters.WatSciTech,1998,38(8-9):233240　郑兰香,1979年生,女,宁夏大学资源环境学院助教,硕士,研究方向:环境污染控制、环境影响评价。(:20051124)·35·2006328August2006　　　　　　　　　　　　　　　IndustrialSafetyandEnvironmentalProtection