SBR序批式活性污泥法英文版

IntroductionofSBR吴自豪孙妍邱林远田甜ContentsBriefIntroductionHistoryAndBackgroundCharacteristicsOperationalPrincipleTheInfluenceFactorsOfSBRProcessNewDevelopmentAndProgressBriefIntroductionSequencingBatchReactorActivatedSludgeProcessFullnamewastewatertreatmenttechnologyAttributesimple,quickandlow-costAdvantagestimeoperationmode;nonstablebiochemicalreaction;staticidealsettlingFeaturesprimarysettling、biodegradable、andsecondarysettlingtakeplaceintheonetank,withouttheinversesludgesystemWhat’smoreSBR（序批式活性污泥法）HistoryAndBackgrounds1969ProfessorOweninNotreuniversity,Ohio,USAstartedtodoresearchaboutSBR1970sOthercountries,especiallyAustralia,attachedimportancetoSBRinsuccession2000sSBRtechnologywaswidelyappliedtothetreatmentofindustrialwastewateranddomesticsewagehandle1990s--nowThenationalconstructionministrydepartmentofmunicipaldesignandResearchInstitutestartedtheresearchandapplicationofSBRtechnologyCharacteristicsCombiningthefunctionsofdegradationoforganicpollutantsandprecipitationofmixedliquid,withouttheinversesludgesystem.makesMainLowercostSmallerspacesimplequickSBRWithgreatpowercomesgreatresponsibilityCharacteristicsMoreoverInmostcases(includingindustrialwastewatertreatment),thereisnotnecessarytosettheregulationpoolanymoreLowSVI，Easysludgeprecipitation,sludgebulkingwon’texistatmosttimesRemovalofnitrogenandphosphorusiscarriedoninthesingleaerationtankafterweadjustedtheoperatingmode

Operationandmanagementproperly,andIt’swatertreatmentqualityisbetterthanthatofcontinuousAllprocessoperationsarelikelytobeautomaticallycontrolledbyCentralControlRoom,onlyifweuseautomaticinstrumentssuchaselectricvalve,liquidlevelmeterl,automatictimerandprogrammablecontrollerCharacteristicsAdvantagesmechanismsGoodsettlingperformanceIdealsettlingtheoryHigh

removalefficiencyoforganicmatterIdealflowstateTheimprovedtreatmentefficiencyofwastewaterdegradationTheecologicalandmicrobialdiversityInhibitionoffilamentousbulkingSelectivecriterionRemovalofNitrogenandPhosphoruswithoutextrareactorTheecologicaldiversityArelativelysimpleprocessDecidedbythecharacteristicsofthestructureitselfCharacteristicsWhySBRretainsthosecharacteristics?DisadvantagesLargervolumeisrequiredwhenweneedtodealwithalargeamountofwaterinthesingleSBRreactiontankFormultipleSBRreactiontank,whereinawaterinletandadrainvalveautomaticswitchingtoofrequentlyThehighrateofidleequipmentSewageliftingoflargerenergyconsumptionTellyouthetruthnowoperationalprinciple1

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ThemodeofintermittentoperationisusedinSBRTechnics.Ingeneral,aperiodofthistechniciscomposedof5stages

.ThefirststageWaterinletphase

WastewaterisinlettedintoprocessingpondcontinuouslyWiththeagitateofthepump,theactivatedsludgeinthewastewaterandpondismixedabsolutely.Thefocintheactivatedsludgewillgenerateadsorptionoforganicmatterinwastewater,CODandBODwillreachthemaximum.Reactionphase

Afterreachingsetlevel,aerationisstartedinthewatertomaketheorganicmatterandthemicrobesinthepondtoabsorboxygenabsolutelyandDOtoreachthemaximumandreduceCOD,usingplug-flowaerationandcompletelymixedaeration.ThesecondstageSettlePhaseNeitheraerationormixing,reactionpondisinastateofsedimentationandeffectivelyspateseparation.CODreducestoaminimum.WiththedecreaseofDOinwater,anaerobicreactionisprocessing.ThethirdstageDrainagePhaseThesupernatantisdischargedfromthedecanterThefourthstage

Themicrobesintheactivatedsludgerestadequately,restoretheactivity,inordertoguaranteetheactivityofthesludge,preventingsludgeagingphenomenon,stillmustgetridofexcesssludgeonaregularbasis.Provideenoughspaceforfreshsludgetogrow.

IdlePhaseWaterinletaerationsettledrainageidleThefifthstagePPT模板下载：/moban/

operationalprincipleAperiodwastewaterWaterinletMixtureAerationSettleRemainsludgeDrainageWateroutletIdleTheinfluencefactorsDOTheinfluencefactorsPHSLUDGEAGENUTRIENTTheinfluencefactorsDissolvedoxygen(DO)TOOHIGHTOOLOWThesludgeflocssizesmalldispersionandthewaterismuddyInanaerobiccondition,phosphorusandnitrogenwillbedischargedfrommicroorganismTheinfluencefactors.2Powerofhydrogen(pH)TheactivityofmicroorganismiscloselyrelatedtothepH.ThebestpHofmicroorganismis6~9Theinfluencefactors3SludgeageShortsludgeageofthemicroorganismcanremovemorephosphorus,butifwewanttoremovemorenitrogeninSBRreactor,weneedimprovethesludgeage.Sowehavetoselecttheappropriatesludgeagetoremovephosphorusandnitrogen.Thescopeofapplication4NutrientThemicroorganismneednutrienttomaintainitsgrowth.Forpeople,itbecalledfood.InSBRreactor,sewageisthefoodformicroorganism.Itofferthenutrientformicroorganism.ThescopeofapplicationThescopeofapplicationMediumandsmalltownsewageTheplacewhereneedhighqualitywaterTheplacewherethewaterresourcesisshortageNewDevelopmentAndProgressTheNewDevelopmentAndProgressOfSBRTheformofthetraditionalorclassicSBRtechnologyhassomelimitationsinengineering.Forexample,ifthewaterflowislarge,itneedtoregulatethereactionsystem,whichleadstoincreaseofinvestment;Andtherearespecialrequirementsonwaterquality,suchasnitrogenandphosphorusremoval,italsoneedtomakeappropriateimprovementsontheprocess.Therefore,intheengineeringapplicationofthetraditionalprocess,SBRgraduallyproducedavarietyofnewvariant.Hereareseveralmainforms.ICEAS(间歇式循环延时曝气法）1CASS(循环式活性污泥系统）2DAT-IAT(连续曝气-间歇曝气串联工艺)3UNITANK(交替式活性污泥法）4NewDevelopmentAnd

ProgressICEAS(IntermittentCycleExtendedAerationSysterm,间歇式循环延时曝气活性污泥法)ICEASaddsaprereactionzoneintheinletendofthereactor,andoperatesasacontinuouswater(precipitation,drainageperiodisstillcontinuousinflow),andIntermittentdrainage,thereisnoobviousreactionstageandidlestage.NewDevelopmentAndProgressThesewagefromtheprereactionzonewithverylowflowintothemainreactionzone,whichdonothaveasignificantimpactonthemudwaterseparationofthemainreactionzone.ThissystemcomparedwiththetraditionalSBR,themanagementmoreconvenient,lesscost,widelyusedathomeandabroad.NewDevelopmentAndProgressCASS(CyclicActivatedSludgeSystem，周期循环活性污泥法)orCAST(-Technology)orCASP(--Process).ComparedwiththeICEASprocess,theprereactionzonevolumeissmaller,thedesignmorereasonableoptimization.CASSprocessissuitableforcitysewagetreatment，whichcontainsalotofindustrialwastewaterorrequirestheremovalofnitrogenandphosphorus.NewDevelopmentAndProgressAnaerobicSequencingBatchTeactor(厌氧序批式活性污泥法,ASBR)SOILSLURRY－SBR（淤泥SS－SBR）IntermittentDrainageExtendedAeration(间歇排水延时曝气工艺,IDEA）PAC-SBRMemb