城市污水培养好氧颗粒污泥的中试研究涂响

31920109ENVIRONMENTALSCIENCEVol.31No.9Sep.2010*100875SBR210d330μm.3.6h.SVI30mL·g－1MLSS8.8g·L－1MLVSS/MLSS82%OUR5.32mg·min·L－1..COD90%80%.SBRX703.1A0250-3301201009-2118-062009-09-232010-03-318632006AA06Z3181981～[e-mail]*[e-mail]ranulesinaLargePilotSBRwithDomesticSewageTUXiangSUBen-shengKONGYun-huaZHUJian-rongSchoolofEnvironmentBeijingNormalUniversityBeijing100875ChinaAbstractThecultivationofaerobicgranulesinalargepilot-scaleSBRwasinvestigatedusingdomesticwastewater.Afteroperationof210daysthegranuleswithadiameterof330μmweresuccessfullyformedbyseedinganaerobicdigestedsludge.ResultsshowedthatduringthefirstthreemonthsofoperationunderloworganicloadofinfluentremovalefficienciesofpollutantsincreasedsteadilyincludingCODNH+4-NtotalnitrogenTNandtotalphosphorousTP.Meanwhilemicroorganismsrelatedtonitrogenandphosphorouswereenriched.Theorganicloadwasenhancedsincecycletimewasshortenedto6handtheoperationalperformanceofthereactorstillremainedstable.Moreovertheaverageparticlesizeofthesludgestartedtoincreasealongwithexcellentsettlingabilityandhighbioactivity.AftertheformationofaerobicgranulesSludgevolumeindexSVIwasmaintainedat30mL·g－1andthemixedliquorsuspendedsolidMLSSconcentrationintheSBRreached8.8g·L－1.MLVSS/MLSSratioofthesludgeincreasedto82%withahighoxygenuptakerateOURof5.32mg·min·L－1.Bacilluswasdominantontheouterlayerofgranuleswhilecocciweremainlylocatedinside.TheaverageCODandTPremovalefficiencieskeptat90%andNH+4-NwasalmostcompletelydepletedNO－3-NandNO－2-Nwerenotaccumulatedintheeffluent.TheaerobicgranuleswerealsocapableofachievingsimultaneousnitrificationanddenitrificationSNDinasingleSBRcyclewhichresultedinahighTNremovalefficiencyof80%.Keywordspilot-scaleSBRdomesticsewageaerobicgranulesnutrientremovalsimultaneousnitrificationdenitrificationSBR1～3.、、.SBR.、、、C/N4～8.910SBR.COD11200～300mg·L－1SBRCOD1kg·m3·d－1.CODSBR1213.COD.DeKreuk143LSBR2h20d1.1mm.DeDOI:10.13227/j.hjkx.2010.09.0239Bruin152～5hCOD1～21kg·m3·d－161.6m3SBR212μm.Ni161m3SBRCOD200mg·L－13～4h300d0.2～0.8mmMLSS9.5g/L85%.1617SBR、.-SBR6～8h.11.1SBR1SBRFig.1PhotographandschematicpictureofthepilotSBRreactorPE11.9m2.2m6m3.110～15m3·h－110.1..MLSS3g·L－1.1Table1CompositionofthedomesticwastewaterCOD/mg·L－1/mg·L－1/mg·L－1/mg·L－1SS/mg·L－1pH200～35015～4030～505～15150～3506.5～7.01.2200857.38h30min80min310min30min30min50%COD0.3～0.51kg·m3·d－1.6h30min50min230min20min30min65%COD0.5～0.91kg·m3·d－1.PLC.1.3CODN-1--MLSS、MLVSSSVI18.OlympusB41FEIQUANTA200.Mastersize2000.OURThermoOrion805A.HACHSC100DOpH.22.180μm2.7d3a3COD.、、、3b.9112312Fig.2Particlesizedistributionofthesludgeindifferentoperationtime6h110d158μm..150d275μm3c.330μm3d.3e3SEMFig.3MorphologyofsludgeduringthegranulationprocessandSEMobservationoftheaerobicgranules3f.2.24MLSS120dMLSS4.1g·L－1.27d150dMLSS7.6g·L－1.MLSS8.8g·L－1.SVI40～45mL·g－1.MLVSS.0～30dMLVSS/4SBRMLSSSVIFig.4VariationofSVIandMLSSduringtheentireoperationofSBR02129MLSS60%～65%.MLVSSSVI32.7～41.7mL·g－1SVI30mL·g－1MLVSS/MLSS82%.2.3SBR5.30dCOD80%COD50mg·L－11mg·L－1.20d8～10mg·L－1..30d67d13mg·L－18mg·L－1.348.7%75.4%.80%.COD290%～95%1mg·L－1.、、.2.46aSBR180dCOD、、DO.DO0.5mg·L－1.pH6.7.CODPHB.Cassidy19.DO160min8mg·L－1pH7.25.COD90min20mg·L－15SBRFig.5PerformanceofthepilotSBRoperationforthepollutantsremoval121231.6b6a、、.5mg·L－1.1hCOD.1920.170～190min11.4mg·L－1SND2122.2mg·L－1DO.DOSND2324SND7.5mg·L－1.6SBRFig.6TimeprofileofthepollutantsconcentrationinatypicalcycleofthepilotSBR2.5OURSOUROUR252.5dOURSOUR0.39mg·min·L－10.13mg·min·g－1.90dOURSOUR2.36mg·min·L－10.59mg·min·g－1.5COD、、.SOUR180d0.67mg·min·g－1OUR5.32mg·min·L－1.2OURSOURTable2OURandSOURindifferentoperationtime/dOUR/mg·min·L－1SOUR/mg·min·g－150.390.13902.360.591805.320.67.31SBR210d330μm.SVI30mL·g－1MLSS8.8g·L－1.28h90dCOD80%90%75.4%.SOUR0.59mg·min·g－1.36h80%OUR5.32mg·min·L－1.4.6h.221291.J.199920238-41.2JangABishopPLYoonYHetal.CharacterizationandevaluationofaerobicgranulesinsequencingbatchreactorJ.JBiotechnol20031051-271-82.3AdavSSLeeDJShowKYetal.AerobicgranularsludgeRecentadvancesJ.BiotechnolAdv2008265411-423.4FangFLiuXWXuJetal.FormationofaerobicgranulesandtheirPHBproductionatvarioussubstrateandammoniumconcentrationsJ.BioresourTechnol2009100159-63.5ThanhBXVisvanathanCAimRB.CharacterizationofaerobicgranularsludgeatvariousorganicloadingratesJ.ProcessBiochem2009442242-245.6PijuanMWernerUYuanZG.Effectoflongtermanaerobicandintermittentanaerobic/aerobicstarvationonaerobicgranulesJ.WaterRes200943143622-3632.7AdavSSLeeDJLaiJY.AerobicgranulationinsequencingbatchreactorsatdifferentsettlingtimesJ.BioresourTechnol2009100215359-5361.8WanJFBessiereYSperandioM.Alternatinganoxicfeast/aerobicfamineconditionforimprovinggranularsludgeformationinsequencingbatchairliftreactoratreducedaerationrateJ.WaterRes200943205097-5108.9AdavSSLeeDJLaiJY.TreatingchemicalindustriesinfluentusingaerobicgranularsludgeRecentdevelopmentJ.JTaiwInstitChemEng2009403333-336.10Lopez-PalauSDostaJMata-AlvarezJ.Start-upofanaerobicgranularsequencingbatchreactorforthetreatmentofwinerywastewaterJ.WaterSciTechnol20096041049-1054.11LiuYQMoyBYPTayJH.CODrem