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HA-A/A-MCO1121.4000842.400016、HA-A/A-MCO。。。、23。0.112gMLSS/gCOD。HA-A/A-MCOSOUR。HA-A/A-MCOX703A1000-4602201111-0025-05CharacteristicsofMicrobeandSludgeinHA-A/A-MCOSludgeReductionProcessTANGLiang-jian1ZENGYao1ZUONing21.EnvironmentalMonitoringStationofDadukouDistrictChongqing400084China2.SouthwesternHydraulicEngineeringResearchInstituteforWaterwayChongqingJiaotongUniversityChongqing400016ChinaAbstractInordertoimprovephosphorousandnitrogenremovalinsludgereductiontechnologiesanadvancedprocesscombiningexcesssludgereductionandphosphorousandnitrogenremovalwasdevel-opednamelythehydrolysisacidification-anaerobic/anoxic-multistepcontinuousoxicHA-A/A-MCOprocess.Thevariationofmicrofaunaspeciesandsludgecharacteristicswereanalyzedtorevealthesludgereductionmechanism.Theresultsshowthateffectivebiofaciesseparationandthepropagationofhighermicrobescanberealizedinaerationtankandthelowersludgeyieldcanbeachievedbymicrobialpredation.WhenthesystemoperatessteadilyspeciesandquantitiesofmicrobesineachreactiontankshowthefollowingobviousvariationcharacteristicsThespeciesandquantitiesofmicrobesinanaerobictankanoxictankandbacterialculturetankareequivalentbasicallyfreeswimmingciliatesarepredomi-nantandveryfewmetazoansexistFixedciliatesarepredominantinoxictankNo.2andtheamountsofrotiferandAeolosomahemprichiincreasegraduallyFixedciliatesandmetazoanrotiferandAeolosomahemprichiarepredominantinoxictankNo.3.Sludgeyieldshowsadowntrendwithbiofaciesseparationinaerationtankandtheincreasingamountofhighermicrobesandfinallystabilizesat0.112gMLSS/·52·271120116CHINAWATER&WASTEWATERVol.27No.11Jun.2011gCOD.BesideslowerSOURofHA-A/A-MCOsystemiscausedbylowerorganicloadbutnotbymi-crobialpredation.KeywordsHA-A/A-MCOprocesssludgereductionmicrobialpredationbiofaciessepa-rationlowsludgeyield、1~3HA-A/A-MCO4A2/O。、HRTDO、→→→。。HA-A/A-MCO。11.1HA-A/A-MCO1。1HA-A/A-MCOFig.1FlowchartofHA-A/A-MCOprocess、、、、、。PVC50LHRT2.5h30LHRT1.5h15LHRT0.5~0.75h30LHRT1.5h40LHRT2h。、40%。HRT1hHRT1h。VFA。VFAVFA。13%56。、、、、、、。20L/hDO0.5~1.0、1.0~1.5、1.0~1.5mg/L、、、40%、150%、100%2%。60d5100~5800mg/L0.18~0.21kgCOD/kgMLSS·d。1.2、、·62·2711.watergasheat.com、、、NH4Cl、KH2PO4Na2CO3COD297~412mg/LTP7~11mg/L23~42mg/LTN31~57mg/LpH7~8。《》4。>100μm10μL。5。22.11022。2Fig.2Speciesandquantityofmicrobesineachtank21、、、。1、2、32、13150/mL400/mL。。0.112gMLSS/gCOD12、3HRT、DO→→→。。2.210—123。3Fig.3QuantityofmicrobesinMCO3。、11~21、2、·72·.watergasheat.comHA-A/A-MCO27113、50/mL100/mL。1、23。3~412、50/mL200/mL3、150/mL250/mL。1112、3“+”“++”23。2、3→→23、。1、Tab.1VariationofpreponderantmicrobeprotonemaandcharacterofsludgeofMCOandsludgeyieldofHA-A/A-MCOprocess1~23~4123123、、、、、、、、、、、、----+++Yobs/gMLSS·g-1COD0.3010.1965~67~8123123、、、、、、、、、、、、、、、、+++++-++Yobs/gMLSS·g-1COD0.1240.112Eikelboom574-、+、++、。5~6123、、。。+、++、++。7~81、、1900/mL2、3、、800/mL1400/mL。3150400/mL。。1Yobs0.301gMLSS/gCOD0.112gMLSS/gCOD。2.3·82·2711.watergasheat.comSOUR。SOUR21.1mgO2/gSS·h13.2mgO2/gSS·h。“”SOUR4。HA-A/A-MCOSOUR。4SOURFig.4InfluenceofCODincreaseonSOUR3①HA-A/A-MCO、12、3。②123。0.112gMLSS/gCOD。③HA-A/A-MCOSOUR。1.LSP&PNRJ.200821105-109.2.J.20034144-52.3LowEWChaseHA.Reducingproductionofexcessbio-massduringwastewatertreatmentJ.WaterRes19993351119-1132.4.HA-A/A-MCOJ.201026516-2025.5.HA-A/A-MCOJ.2009251529-33.6.LSP&PNRJ.200723335-39.7EikelboomDHVanBuijsenHJJ.MicroscopicSludgeInvestigationManualM.DelftTNOResearchInstitu-te1983.1957-。13635476773E-mailzuoning_2424@126.com2011-01-07·92·.watergasheat.comHA-A/A-MCO2711
本文标题:HAAAMCO污泥减量工艺的微生物与污泥特性唐良建
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