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WATERPURIFICATIONTECHNOLOGYVol.24No.620051,21111(1.,410082;2.,430070),,,,,CharacteristicsofAerobicGranularSludgeandItsApplicationsinWastewaterTreatmentCaiJianbo1,2LiXiaoming1ZengGuangming1YangQi1TanXuehua1(1.DepartmentofEnvironmentalScienceandEngineering,HunanUniverstiy,Changsha410082,China;2.CollegeofResourcesandEnvironment,HuazhongAgricultralUniversity,Wuhan430070,China)AbstractThelatestresearchworksonaerobicgranularsludgewerereviewed,whichcoveredthesludgegeneralproperties,theadvantagerelativetoconventionalactivatedsludge,formationmechanismaswellasitsapplicationinwastewatertreatment.Aerobicgranularsludgeistheself2immobilizedsludge,whichisrecentlyfoundundertheaerobiccondition.Aerobicgranularsludgedemonstrateshighsettingve2locitiesleadingtogoodsolidliquidseparation,highbiomassretention,highactivityandanabilitytowith2standhighloadingrates.Aerobicgranulationisamultiplephaseprocess,whichisdependingonthecompo2sitionofthewastewater,theoperationconditionandtheseedsuldge.Becauseofthespecialinnerstructureandmicrobialmorphology,aerobicgranularsludgealsohasabilitytoadsorbheavymetals.Keywordsaerobicgranularsludgesimultaneousnitrificationanddenitrificationbiologicalphos2phorusremovalheavymetalphenol:(50478054);(WJ2002101);(200219),,,,,,,[1],,,,1,,,,,12mm(6-9mm[2])[3])20.51.5mm,,43Vol.24No.62005,,[4]SBR0.51.0mm,3mm,,,1.00681.0072g/m3,97%98%1.0021.006g/m3,99%,1835m/h[11].MLSSSVSVI4.046.88g/L,14%30%,2045mg/g,;MLSSSVI24g/L,100150mg/g[6].SVI,,,,[5](OURW),,OURW1.27mg/g?min,OURW0.8mg/g?min[5]2,[8]Scuras[8](1)1Fig.1threeprocessofformationofaerobicgranules,[11]:,SRT,,(),,,,56mm,DO,,,,,,33.1:,[18]NO-x,NO-xN2,,,,(UCTBardenpo)(SBR),(SND),[3,20]22Fig.2Thetheoreticmodelofsimultaneousnitrificationanddenitrificationbyaerobicgranularsludge[20]SND,1.62.7mm,SVI30mg/g,MLSS10g/LSND,COD90%,6h100%,53Vol.24No.62005NO-22N,2mg/LNO-32N[3]SBR,SND,0.51.0mm,SVI32.5mg/g,MLSS4.5g/LSND,COD74.0%92.8%,82.3%98.5%3.2,,,,,;,,,,,,,3,,,,3Fig.3thedifferentpartoftheinneraerobicgranularsludgeSBRSBR2,,[23]SBR,,,SBR0.21.0mm,SVI42.955.3mg/gCODPNH32N88.5%90.7%,82.7%86.7%88.4%92.3%,CODPNH32N83.7%90.2%,34.5%52.1%,71.6%81.9%,,,3.3,[24226],,,,,[28]YuLiu[30231]Cd2+Zn2+,,Cd2+,Cd2+100mg/L,Cd2+(10200mg/L)Cd2+150mg/L,(50200mg/L),Cd2+43566mgCd2+/gZn2+,,200mgZn2+/g3.4,,,Jiangetal.(2002,2004),500mg/L,0.2mg/L63Vol.24No.620054,,,,,,,,,,,;,,1,.[J].,1995,21(4):11132QiangWang,GuochengDu,JianChen.Aerobicgranulessludgecultivatadundertheselectivepressureasadrivingforce[J].ProcessBiochemistry,2004;35:5575633,.[J].,1999,20(2):38414,,.SBR[J].,2003,24(4):94985,,.2[J].,199919(4)3943986,,.[M].,:,19967,,.[J].,2002,21(9):5275298ScurasS,DaiggerG.T,gradyC.P.L.Modelingtheactivatedsludgefloemicroenvironment[J].Wat.SciTech,1998,37(425):2432519ShinH2S,LimK2H.Effectofshearstressongranulationinoxy2genaerobiceupflowsludgebedreactor[J].WatSitTech,1992,26(324):60160510MishinmaK,MakamupaM.Self2immobilizationofaerobicacti2vatedsludge2apilotsludyoftheaerobicupflowsludgeblanketprocessinmunicipalsewagetreatment[J].WatResTech,1991,23;981199011BeunJJ,Hendriksa.Aerobicgranulationinasequencebatchreactor[J].WatRes,1999,33(10)2283229012BenunJJ,BanloosdrechtMCM,HeijnenJJ.Generationandpropertiesofaerobicgranularsludge[J].WatResTech,2001,43(7):192613MorgerothE,SherdenT.Aerobicgranularsludgeinsequencingbatchreactor[J].WatRes,1997,31(12):3191319414PendcNicolasb,Jean2Philipped,et,al.Aerobicgranularsludge2acasereport[J].WatRes,1999,33(3):89089315,,SBR[J].,2001,22(2):879016,.[J].,2002,21(3):31732617,,.[J].,2003,4(7):707318..[M].:,199719.[J].,2002,18(2):262820,.[J].,2003,23(4):38038421,.[J].,1997,13(4):121622TayJH,LiuQS,LiuY,Microscopicobservationofaerobicgranulationinsequenceaerobicsludgereactor[J].JApplMicro2biology,2001,91:16817523,,.SRR[J].,2001,21(5):9910424Perales2Perez,OscarTohji,KazuyukiUmetsu,etal.Theoryandpracticeoftheremovalofheavy2metalionsbytheirprecipitationasferrite2typecompoundsfromaqueoussolutionattemperature[J].MetallurgicalReviewofMMIJ,2001,17(2):13713925BoltoBA,PawlowskiL,Wastewatertreatmentbyionex2change[M].London:E.andF.N.SponLtd.,1987,26327926ElEl2Shafey,CoxM,PichuginA,etal.Applicationofacar2bonsorbentfortheremovalofcadmiumandotherheavymetalionsfromaqueoussolution[J].JorunalofChemicalTechnologyandBiotechnology,2002,77(4):42943627ValdmanE,LeiteSGF.BiosportionofCd,ZnandCubySaragssumsp.wastebiomass[J].BioprocEng,2000,22,17117328LodiA,SolisoioC,ConvertiA,DelBorghiM.Caduim,Zinc,Copper,SilverandChromium()RemovalfromwastewatersbySphaerotilusnatans[J].BioprocEng,1998,19:19720329MaraquesP,RosaMF,PinheiroHP.pHeffectsontheremovalofCu2+,Cd2+,andPb2+fromaqueoussolutionbywastebrew2erybiomass[J].BioprocEng,2000,23:13514130YuLiu,Shu2Fang,Yang,etal.BiosorptionkineticsofCadmi2um()onaerobicgranularsludge[J].ProcessBiochemistry,2003,38:997100131YuLiu,Shu2FangYang,etal.Aerobicgranules:anovelZincbiosorbent[J].LettersinAppliedMicrobiology,2002,35(6):548551:200521225:,,1977,,,:,:027-62386262,E2mail:jbcai@tom.com.73