底物种类和浓度对好氧颗粒污泥丝状菌膨胀的影响

37720117JOURNALOFBEIJINGUNIVERSITYOFTECHNOLOGYVol．37No．7Jul．2011100124sequencingbatchreactorSBRaerobicgranularsludgeAGSAGS．ρCOD600～900mg/L10dAGS1.15±0.14mmSVI90mL/gAGS23dρCOD900mg/L1200mg/LAGSAGSΔ1.69±0.23mmSVI175mL/g．AGS+1∶1AGS34dAGS“”AGSΔ1.00±0.01mm．ρCOD600mg/L1200mg/LAGS．AGSAGSAGS．X703.1A0254－0037201107－1027－062009-07-25．510780078112007PHR20110819．1974—．aerobicgranularsludgeAGS、、、．AGSAGS．Tay1AGSAGSAGS2Zheng3AGS6kgCOD/m3·d30dAGSAGS．、AGSAGSAGSAGS．AGS．AGS．sequencingbatchreactorSBRAGSAGS+AGS．11.1NH4Cl229.3mg/LKH2PO443.9mg/LMgSO4·7H2O90mg/LCaCl2·2H2O14mg/L0.4mL/L．FeCl3·6H2O1.5gH3BO30.15gCuSO4·5H2O0.03gKI0.18gMnCl2·H2O0.12gNa2MoO4·2H2O0.06gZnSO4·7H2O0.12gCoCl2·6H2O0.15gEDTA10g．ρCOD600mg/LρMLSS2173mg/L．20111.2SBRD=9cmH=90cmH/D=106L．0.12m3/h25±1℃2min290min5min2min1min．66%．4．1.3SV、COD、NH+4-N、MLSSOlympusBX51CANONIX850AGS、、、、S－4300AGSDdAGSΔ=D/d4ΔAGSIm-age-proplus6.0．1Fig．1Changesinsubstratetypeandconcentrationduringtheexperiment1.41．5AGSS11～10d、AGSS211～23d、AGSS324～43d、AGSS444～77d、AGSS578～120d．22.1SBRAGS2AGSS1～S2．ρCOD600mg/L900mg/L10d2b．AGSS20.8～1mm．2AGSS1、S2Fig．2Imagesofsludgeinthegranulationprocessphase1and22.2AGSρMLSSAGSρCOD900mg/L1200mg/LS3．AGS．3ρMLSSSVI3AGSS324～43dρMLSS820173ρMLSSSVIFig．3ChangesinMLSSandSVIinaerobicgranularsludgeSBR213mg/LSVI60mL/g175mL/g．15min“”AGS“”．4S3AGS．4AGS25d43dΔ1.45±0.1425d1.69±0.2343d．AGSEikelboom55Fungispp．4AGSS3Fig．4Morphologychangesofthefilamentousaerobicgranularsludgeinphase35Fig．5GramandNeisserstainofthefilamentousbacteria2.3AGSAGSAGSAGSρMLSSSVI．AGS+S4ρCOD600mg/L300mg/L．S4AGSAGS．6S4AGS．6AGSΔ1.69±0.2343d1.41±0.1953d69dΔ1.29±0.08．34dAGSAGS．6AGSS4、S5Fig．6Morphologychangesoftheaerobicgranularsludgeinphase4and5S5AGS2.5～3.0mm7．8S5AGSAGSρCOD1200mg/L600mg/LS3ρCODAGS．920120117Fig．7Changesinsizeofaerobicgranularsludge8S5AGSFig．8TheSEMimagesoftheaerobicgranularsludgeinphaseS53SBRAGSρCOD600～900mg/L10dAGS1.15±0.14mmSVI90mL/gAGS23dρCOD900mg/L1200mg/LAGSΔ1.69±0.23mmSVI175mL/gAGS+1∶1AGS34dAGS“”Δ1.00±0.01mm．、DO、、、pH．AGS16．、AGS．7AGS.2ρCOD600mg/LS1～S21200mg/LS32.4kgCOD/m3·d4.8kgCOD/m3·dDO2mg/L．ρCODAGS/8．3．S1—S3．4pHpH6.7pH．AGS、．S4AGS+1AGS“”AGS．2ρN/ρCOD9-10ρN/ρCODAGS1ρN/ρCODS1—S3ρCODρN/ρCODAGS．S4214.5%．1ρN/ρCOD030171ρN/ρCODTable1ChangesintheratioofN/CODduringtheexperimentρCOD/mg·L－1ρN/ρCOD60010∶100S1～S39006.7∶10012005.0∶10060017.3∶100S4～S5+90013.9∶100120012.3∶100“”9S4—S544～120d25%9Fig．9Theeffluentammonianitrogenandtheremovalofammonianitrogeninthereactor70%S3AGSAGSAGS．S3S4ρDOAGSDOAGS．41SBRAGSρCOD600～900mg/L10dAGS1.15±0.14mmSVI90mL/gAGS23dρCOD900mg/L1200mg/LAGSΔ1.69±0.23mmSVI175mL/g+1∶1AGS34dAGSΔ1.00±0.01mm．2AGSρN/ρCOD+AGSρN/ρCODAGSAGSAGS．1TAYJHLIUQSLIUY．AerobicgranulationinsequentialsludgeblanketreactorJ．WaterScienceandTechnology2002464-513-18．2TAYJHLIUQSLIUY．MicroscopicobservationofaerobicgranulationinsequentialaerobicsludgeblanketreactorJ．JournalofAppliedMicrobiology2001911168-175．3ZHENGYMYUHQLIUSHetal．FormationandinstabilityofaerobicgranulesunderhighorganicloadingconditionsJ．Chemosphere200663101791-1800．4．J．2008293696-702．WANGShan-quanKONGYun-huaYUANYuanetal．FilamentousovergrowthinaerobicgranulesJ．EnvironmentalScience2008293696-702．inChinese5EIKELBOOMDH．FilamentousorganismsobservedinactivatedsludgeJ．WaterResearch197594365-388．6TAYJHLIUQSLIUY．Characteristicsofaerobicgranulesgrownonglucoseandacetateinsequentialaerobicsludge13012011blanketreactorsJ．EnvironmentalTechnology2002238931-936．7．SBARD．2004．WANGFang．CultivationandcharacteristicsofaerobicgranularsludgeinsequencingbatchairliftreactorD．DalianSchoolofEnvironmentalScienceandTechnologyDalianUniversityofTechnology2004．inChinese8CHUDOBAJ．Controlofactivatedsludgefilamentousbulking—ⅥFormulationofbasicprinciplesJ．WaterResearch19851981017-1022．9deKREUKMKvanLOOSDRECHTMCM．SelectionofslowgrowingorganismsasameansforimprovingaerobicgranularsludgestabilityJ．WaterScienceandTechnology20044911-129-17．10LIUYYANGSFTAYJH．ElementalcompositionsandcharacteristicsofaerobicgranulescultivatedatdifferentsubstrateN/CratiosJ．AppliedMicrobiologyandBiotechnology2003615-6556-561．TheEffectsofSubstrateTypeandConcentrationonFilamentousGrowthinAerobicGranularSludgeSBRGAOJing-fengSUKaiZHANGQianCHENRan-niPENGYong-zhenCollegeofEnvironmentalandEnergyEngineeringBeijingUniversityofTechnologyBeijing100124ChinaAbstractTheeffectsofsubstratetypeandconcentrationoncultivationandstabilityofaerobicgranularsludgeareinvestigated．Duringstart-upphasesucroseisusedasthesolesubstratecompactaerobicgranularsludgeformin10daysunderinfluentCODconcentrationof600－900mg/Lthemeandiameterofthegranuleis1.15±0.14mmSVIis90mL/g．HoweverwhentheinfluentCODconcentrationisincreasedfrom900to1200mg/LoutgrowthoffilamentousbacteriainaerobicgranularsludgeoccurwhenSVIisincreasedto175mL/gandlargeamountsofaerobicgranularsludgearewashedoutofthereactor．Inordertocontrolthefilamentousgrowthinaerobicgranularsludgesucrose+peptone1∶1areusedasthesubstrateunderinfluentCODconcentrationof600mg/Lduring34daysthefilamentousbacteriagraduallydisappearthefilamentousgrowthaerobicgranularsludgetransitstostablesmoothaerobicgranularsludgeagain．Whenthe