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31520105ENVIRONMENTALSCIENCEVol.31No.5May2010SBR*100084SBR、、.SBR39min10minSVI110mL/g24～42mL/g.EPSVSS163mg/g250～270mg/gEPS20～30mg/gEPS/9～13.VSS2.5g/LVSS/SS85%～90%.SOUR-ASOUR-N17dSOUR-ASOUR-N259mg/g·h119mg/g·h2.45.3.SOUR-ASOUR-N.SOUR-HSOUR-E10mg/g·h.X703.1A0250-3301201005-1257-062009-05-052009-12-04599780201979～.*E-mailwangjl@tsinghua.edu.cnCharacteristicsofAutotrophicNitrifyingGranularSludgeinSequencingBatchReactorZHANGZi-jianWUWei-weiWANGJian-longLaboratoryofEnvironmentalTechnologyINETTsinghuaUniversityBeijing100084ChinaAbstractThevariationofsomeperformancesofthesludgeduringgranulationprocesswasinvestigatedbyseedingthenitrifyingsludgeinsequencingbatchreactorthesludgevolumeindexSVIextracellularpolymericsubstancesEPSspecificoxygenuptakerateSOURandammonia-oxidizingactivityweremonitored.Theexperimentalresultsindicatedthatwhenthesettlingtimewasgraduallydecreasedfrom39minto10mintheSVIdecreasedfromtheinitial110mL/gto24-42mL/g.TheproteincontentinEPSincreasedfrom163mg/gto250-270mg/gwhilepolysaccharidecontentinEPSalmostremainedaround20-30mg/g.Theratioofprotein/polysaccharideinEPSwasabout9-13.ThesludgeconcentrationinSBRwas2.5g/LandtheratioofVSS/Swas85%-90%.Attheinitialphaseofgranulationprocesstheammonia-oxidizingactivitySOUR-Aandthenitrite-oxidizingactivitySOUR-Ngraduallyincreasedandreached259mg/g·hand119mg/g·hatday17respectivelytheywere2.4timesand5.3timeoftheseedingsludge.TheSOUR-AandSOUR-Nbegantodecreasewhenthegranularsizeincreased.TheactivityofheterotrophicmicroorganismsSOUR-HandtheendogenousrespirationactivitySOUR-Ewaskeptat10mg/g·hduringthegranulationprocess.KeywordsaerobicgranularsludgegranulationnitrificationwastewatertreatmentoxygenuptakerateextracellularpolymericsubstancesEPS、、1.2080UASB.2090UASBaerobicupflowsludgeblanketAUSB23.4～8.910.、1112.Tsuneda12100d300d346μm.Fe2O3100d1314.SBR.DOI:10.13227/j.hjkx.2010.05.01631SBR、、.11.1.N0.24kg/m3·d30d.1.2.pH6.3～8.611.5∶15∶1KH2PO4K2HPO4.、L20mgMgSO4·7H2O10mgFeSO4·7H2O15mgCaCl2·2H2O1mL.1.3SBR5cm120cm2.4L.SBR、、4.30℃±2℃.1.4DOYSI5000SSVSSSVI5minSVISVI530minSVISVI30.30℃±2℃APHA2710B415SOUR-E、SOUR-H、SOUR-A、SOUR-N.3300r/min5min3.BOD67mLBODDO15sDO.DODO4mg/LDOVSSmg/g·h.30℃1.SOUR-A+SOUR-NSOUR-NSOUR-A.1Table1WatercompositionforSOURSOURSOUR-ESOUR-HSOUR-NSOUR-A+SOUR-N/mg·L－1100/mg·L－1100100/mg·L－1300300300300COD/mg·L－1300Fe、Ca、MgEPSEPS.EPSEPS15.3300r/min5min3.200μm.5～10mL10mL12μL32%4℃1h1mL1mol/LNaOH4℃3h1h4℃13000r/min30minLowry16Dubois17EPSmg/g.22.1SVI.85215SBRSVISBR1.SBR10d39min.SVI30110mL/g.11d4min10min.SVI514d29d27mL/g.SVI524～42mL/g...15d200μmSVI5100mL/g.22d15d78μmSVI544.3mL/gSVI530mL/g.SBRSBR.1Fig.1Variationofsettlingcharacteristicsofsludge2.2EPSEPS、.EPS、.EPS.EPS/9～132EPS20～30mg/g.29dEPS163mg/g277mg/g250～270mg/g.EPS/.McSwain18EPS.EPS/.2EPSFig.2VariationofEPScontentinsludgeTay1920EPS/0.07～0.17.//./.EPS.EPSEPS.Tsuneda12EPS.EPS.20～30mg/gEPS952131.EPS.EPSEPS.EPSEPS.EPS/9～137.0.EPSEPS.EPS1.5～1.7EPSEPS3.22dEPS250mg/gEPS.EPS.EPS.EPS.3EPSFig.3VariationofthesizeandEPScontentduringgranulationprocess2.344.SOUR-ASOUR-N17dSOUR-ASOUR-N202～259mg/g·h119mg/g·h2.44.5.SOUR-ASOUR-N.50d100d471μm601μmSOUR-A17d34%38%SOUR-N17d36%26%..Debeer11Gapes21DO4～7mg/LDO100μm.Liu22DO.4SOURFig.4VariationofSOURofsludgeduringgranulationprocessSOURDO4～7mg/LDO100μm.SOUR-ASOUR-N.471μm601μm81.0%70.3%2SOUR-ASOUR-N81.0%70.3%..471μmSOUR-ASOUR-N34%36%601μmSOUR-ASOUR-N38%26%.DO1mg/LDO1mg/L21～23SOURDO4mg/LSOUR-ASOUR-N06215SBR.SOUR-A、SOUR-NSOUR-HSOUR-E10mg/g·h.100d.Tsuneda12.EPS.2.4SBR2.1g/L15d0.88g/L44%44d5.SBRSBR.SBR86d2.5g/L.SBR.SBR.VSS/SS85%～90%.5Fig.5Variationofsludgeconcentrationduringgranulationprocess31SBR39min10minSVI110mL/g14d27mL/g24～42mL/g.2EPS163mg/g277mg/g250～270mg/gEPS20～30mg/gEPS/9～13.3SBR2.1g/L15d0.88g/L44%SBR86d2.5g/L.VSS/SS85%～90%.4SOUR-ASOUR-N17dSOUR-ASOUR-N259mg/g·h119mg/g·h2.45.3.SOUR-ASOUR-N.50d100dSOUR-A17d34%38%SOUR-N17d36%26%SOUR-HSOUR-E10mg/g·h.1.M.2002.130-135.2MishimaKNakamuraM.Self-immobilizationofaerobicactivatedsludge.Apilotstudyoftheaerobicup-flowsludgeblanketprocessinmunicipalsewagetreatmentJ.WaterSciTechnol1991234981-990.3ShinHSLimKHParkHS.EffectofshearstressongranulationinoxygenaerobicupflowsludgebedreactorsJ.WaterSciTechnol1992263-4601-605.4PengDCBernetNDelgenesJPetal.Aerobicgranularsludge-AcasereportJ.WaterRes1999333890-893.5HuLLWangJLWenXHetal.TheformationandcharacteristicsofaerobicgranulesinsequencingbatchreactorSBRbyseedinganaerobicgranulesJ.ProcessBiochem20054015-11.6.J.200324499-104.7.SBRJ.2008241342-45.8.J.2008293696-702.9LiuQJHuXWangJLPerformancecharacteristicsofnitrogenremovalinSBRbyaerobicgranulesJ.ChineseJChemEng2005135669-672.10.J.2007283528-533.11DebeerDVandenheuvelJCOttengrafSPP.MicroelectrodemeasurementsoftheactivitydistributioninnitrifyingbacterialaggregatesJ.ApplEnvironMicrob1993592573-579.12TsunedaSNaganoTHoshinoTetal.Characterizationof162131nitrifyinggranulesproducedinanaerobicupflowfluidizedbedreactorJ.WaterRes200337204965-4973.13TsunedaSEjiriYNaganoTetal.FormationmechanismofnitrifyinggranulesobservedinanaerobicupflowfluidizedbedAUFBreactorJ.WaterSciTechnol20044911-1227-34.