MBBR技术的新进展

WisconsinWastewaterOperatorsAssociationAnnualMeeting,StevensPoint,WIOctober23-25,2013FixedFilmMovingMediaforWastewaterTreatmentKENNETHE.NEU,M.S.ENVIRONMENTAL/HEALTHPRODUCTS&SERVICEPOBox21P.O.BOX101Richfield,WI53076PHILLIPS,WI54555BusinessCell:262-628-1300E-MAIL:[e-mail]&AuthorsWhenlessisTrulyMORE—theNextGenerationofMBBRTechnology---SmallMediaBiofilminaContinuousFlowIntermittentCleaningModeLauraR.Marcolini1,KenNeu2,BjornRusten31BiowaterTechnology,LLC,2155DiamondHillRd,Cumberland,RI02864,USA2Environmental/HealthProductsandService,POBox101Phillips,WI54555,USA(submitter/presenter)3Aquateam,P.O.Box6875,Rodelokka,N-0504Oslo,NorwayContentsofPresentationBriefOverviewofFixedFilmMovingMediaAdvantages&ExamplesTheNextGeneration:ContinuousFlowIntermittentCleaningBriefOverviewofFixedFilmMovingMediaFixedFilmMovingMediaReactorTreatmentDevelopedinthe1980’sprimarilybyKaldnesCo.inNorwayincollaborationwithTrondheimUniversity,Dr.HalvardOdegard&Dr.BjornRusten.MovingBedBiofilmReactor(MBBR)isageneraltermusedtodescribetheprocess.InitiallyMBBRwasdesignedasaSinglePassWWTprocessMovingBedBiofilmReactorTechnologyBiologicalprocess—toxicityrulesapplyRequiresprimarytreatment,FOG100mg/lTreatmentdesign&configurationisarrangedaccordingtoinlet&outletparameters,includingWWtemp.OrganicandHydraulicloadingisvariable,dependentonInfl.parameters,Eff.goals.FixedFilmMovingMediaReactorTreatmentSampleofBiofilmCarriersFixedFilmMovingMediaReactorTreatmentCarriersmovethroughouttankwithaerationorbymovementofwaterbymixersinananoxictank.NounusedspaceinReactor.Intimatecontactofbiomassw/substrate&airStandardMBBRmaximummediafillfraction=66%fillofmediainthereactorMediaRetentionScreen(s)keepsmediaintankFixedFilmMovingMediaReactorTreatmentMovingMediasystem,AerobicandAnoxicmodes,typicalBiofilmCarrierElements.FixedFilmMovingMediaReactorTreatmentAdvantages&ExamplesFixedFilmMovingMediaReactorTreatmentAdvantages:Continuousprocess;Self-CleaningCarrierElementsOperatesasonce-through(traditionalMBBR)ormultiplerecirculation(IFAS,CFAS®)Cost-effective,compactdesignStable&robustprocess:handleshydraulicandorganicloadvariationsFixedFilmMovingMediaReactorTreatmentAdvantages:EASYUPGRADINGOFACTIVATEDSLUDGEPLANTSTOHIGHERCAPACITIESadditionwithintheActivatedSludgeunitprocesstoachieveIFAS/CFASstatus,andaddedasaseparateunitprocess-withinFlowPath,upstreamordownstreamofexistingFixedFilm,ASorLagoon.CompleteMixFixedFilm(CMFF®)•Once-through,noRAS,noMLSS•BOD,CODremovalathighloads:*Municipal17Kg/m3-day*Industrial=17Kg/mft3-day•NitrogenremovalwithlowHRT:3mg/Lwith6hrHRT•Smallfootprint•Operatorfriendly•CSTRconditions,homogeneousbed,continuoussolidssloughingCMFF®-ActivatedSludgeCMASReactor(MLSSOnlywithAeration)ClarificationRASWASFlowSplit•Eliminatessludgebulkingonhigh-loadedMLSS*(SVIreductions300downto100)•Stabilizesorganicremoval:*Installationswith10xloadfluctuations*CMFF®processproviding80-90%organicremoval•Smallfootprint(0.5hourHRTorgreater)•LowImplementationCostCombinedFixedFilmandActivatedSludge(CFAS®)•Biomass=MLSS&Biofilm•CompartmentalizeBODRemoval,Nitrification,andNitrogenRemoval•BiologicalPremovalwithanaerobicselector•Carriers/Biofilmoptimizesnitrification,limitingkineticrateinBNR•Selectivepollutantdegradationbycarriers/biofilm:organiccompounds,postDNSmallMediaAerobicReactorTreatment(SMARTOn-sitewastewaterTreatmentSystems)EHShasDOWN-SIZEDthistechnologytoVeryEconomicalDecentralizedSMALLFLOWandON-SITEwastewatertreatmentapplicationsWisconsinapprovalhasbeenaccomplishedfortheSmallFlow(1333P.E.)ON-SITEAEROBICTREATMENTSYSTEM,withseveralEHS-SMART-TreatmentOn-sitesystemsinstalledsince2001SmallMediaAerobicReactorTreatment(SMART-TreatmentOn-siteSystems)PopEquivWWQgpdSTEInfBODLbs/dayReactorgallonsHRT-avQ,hrsMedia,%fillTankDepth54000.7753031103.5504,0007.75300564450040,0007783505646100080,00015416,50056410EHSSMARTSystemSmallFlowSizing,BOD+NitrogenRemSmallMediaAerobicReactorTreatmentOn-sitepackageplants:clusterdevelopments,etc.SmallMediaAerobicReactorTreatmentSMARTOn-sitetreatmenttankWaterEnvironmentFederation’s(1998)MOP8,“DesignofMunicipalWastewaterTreatmentPlants”SurfaceAreaofStationaryMediaBundlesTypicalWastewaterStrengthCategoriesSurfaceArea,SqFt/CuFtStationaryMediaVolumeHighStrengthWaste:30.5sqft/cuftDomestic,BODremoval:36sqft/cuftNitrificationapplications:42sqft/cuftRBC:–stdden/highden34sqft&56sqft/cuftMovingMediaComparison,at66%FillFractionBWT-X@198sqft/cuft-bulk131sqft/cuft-InReactorBWT-15@253sqft/cuft-bulk167sqft/cuft-InReactorWaterEnvironmentFederation’s(1998)MOP8,“DesignofMunicipalWastewaterTreatmentPlants”TypicalWastewaterStrengthCategoriesSurfaceArea,SqFt/CuFtStationaryMediaVolumeHighStrengthWaste:30.5sqft/cuftDomestic,BODremoval:36sqft/cuftNitrificationapplications:42sqft/cuftRBC:–stdden/highden34sqft&56sqft/cuftMovingMediaComparison,at66%FillFractionBWT-X@198sqft/cuft-bulk131sqft/cuft-InReactorBWT-15@253sqft/cuft-bulk167sqft/cuft-InReactorCFIC—BWT-X@99%Fill196sqft/cuft-InReactorCFIC—BWT15@99%Fill250sqft/cuft-InReactorTheNextGeneration:ContinuousFlow