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20219993ENVIRONMENTALSCIENCEVol.20,No.2Mar.,1999*:,35,,**..,1990.:1998-05-26*竺建荣 刘纯新(,100084)-.,,0.51.5mm,1.007,97%98%.MLSS4.046.88%g/L,SVI2045ml/g,30ml/g.vs2.15cm/min,v20.35cm/min.OURW1.27mg/(gmin),.COD372548mg/LP9.8413.57mg/L,CODP90%.,-,,.CultivationandPhysic-chemicalCharacteristicsofGranularActivatedSludgeinAlternationofAnaerobic/AerobicProcessZhuJianrongLiuChunxin(Dept.ofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China)AbstractThispaperfirstreportsthecultivationandphysic-chemicalcharacteristicsofgranu-laractivatedsludgeinasinglealternationofanaerobic/aerobic(AAA)process.Itwasshownthatunderconventionalcondition,thegranularactivatedsludgewasformedandobservedinthereactor,0.51.5mmindiameter,specificweightabout1.007g/cm3,watercontent97%98%,MLSS4.046.88g/L,SVI2045ml/g(normally30ml/g),settlingvelocityininhibitedlayer2.15cm/min,thesettlingvelocityincompressedlayer0.35cm/min,specificoxygenutiliz-ingrateofsludge(OURW)1.27mg/(gmin).Thesepropertiesofthegranularactivatedsludgearebetterthantheparametersofconventionalactivatedsludge.ForthedomesticsewagetreatmentofCOD372548mg/LandPconcentration9.8413.57mg/L,theCODandPre-movalefficienciescouldreachmorethan90%.Keywordsgranularactivatedsludge,alternationofanaerobic/aerobicprocess,domesticsewagetreatment,biologicalphosphorusremoval.(UASB)[1,2].,[3,4].,,,,..,-(AlternationofAnaerobic/AerobicProcess,AAA),,,.11.1AAA,.,SBR[5,**].,22cm,10L,66.5L...20,202;.-6500.1.12345671,.16min,0.4L/min,66.5L.SVSVI,DO,MLSS,MLVSS,TP,pH..1d3,18h:2.5h,4h,1.5h.1.2.:COD300550mg/L,TN3040mg/L,HN3-N1020mg/L,TP815mg/L1.3(1)CODSVSVIMLSSMLVSS[7].(2)(OURW)[7].(3)NikonOptiphotX-2.(4)P[7],DO,pHYSIDOpHS3B.22.1(1)AAA4:,7.,..,,0.51.5mm.(2),,.,,..,,.,,,,.,,,.,,,,.2.2(1),,2.2,1000m.,0.5mm20%.,,.,1cm,,,.(2).500ml392230min,50ml,,1.1,1.00681.0072g/cm3,1.0021.006g/cm3.1/d/g/g/gF/gcm-33477.58777.13727.2230.99821.00724177.65277.20727.2500.99821.00715577.25476.81627.1680.99801.0068(2)230min.21)/dSVI/mlg-1VSS/SS/gcm-3/%3432.10.781.007297.04137.80.801.007197.45549.50.801.006898.01)=(-)/2,97%98%,(99%).SVI,.,,,().(4),,,,,()..,,.,,,.,..,.,2,..,,,.,,,3.3:vs=0.484mm/s=2.15cm/minv2=0.416mm/s=0.35cm/min3,.,(SVI)4.,MLSS4.046.88g/L,SV14%30%,SVI2045ml/g,30,;MLSS24g/L,SVI100150ml/g.4(5)(OURW),4020,.(OURV).OURW5.52:OURW=1.27mg/(gmin).VSS=4.02g/L,:OURV=OURWvXi=1.2764.02=30.65mg/minOURW0.8mg/(gmin).,.2.3CODAAACOD,.COD6.6,,COD372548mg/L,COD2050mg/L,COD90%.,-,.,CODFr=1.21.5kg/(m3d).,P9.8413.57mg/L,P1mg/L,90%.,(),,,().6CODP3,,.COD1.21.5kg/(m3d).0.60.9kg/(m3d),0.81.2kg/(m3d),3.,CODP90%.,.1LettingaG.AnaerobicDigestionandWastewaterTreat-mentSystems.AntonievanLeeuwenhoek,1995,67:3282LettingaGandLWHulshoffPol.UASBProcessDesignforVariousTypesofWastewater.WaterSci.Technol.,1991,19:991083ShinHS,KHLimandHSPark.EffectofShearStressonGranulationinOxygenAerobicUpflowSludgeBedTrac-tors.Wat.Sci.Tech.,1992,26(34):6016054MishimaKandMNakamura.Self-ImmobilizationofAero-bicActivatedSludge-APilotStudyoftheAerobicUpflowSludgeBlanketProcessinMunicipalSewageTreatment.Wat.Sci.Tech.,1991,23:9819905IrvineRLetal.ControlledUnsteadyStateProcessesandTechnologies-anOverview.Wat.Sci.Tech.,1997,35(1):1106,.(15).:,1985412