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1、长春某学院毕业设计ThestatusquoanddevelopmentofUASBanaerobicprocessAbstract:ThispaperintroducestheoriginofUASBreactor,theworkingprinciples,characteristics,thedevelopmentandapplicationofthelatestresearchprogress,pointingoutthattherecentUASBreactorresearchfocus.Keywords:UASB;anaerobictreatmentprocess;1.Int
2、roduction: Anaerobicbiologicaltreatmentastheuseofanaerobicmetabolismofmicroorganisms,withouttheprovisionofenergysourcesundertheconditionsoforganicmatterastoberestoredbyhydrogendonor,whilegeneratingenergyvalueofthemethanegas.Anaerobicbiologicaltreatmentappliesnotonlytohighconcentrationsoforga
3、nicwastewater,influentBODuptothehighestconcentrationoftensofthousandsofmg/l,canalsobeappliedinlowconcentrationsoforganicwastewater,suchassewage,andothercities. Anaerobicbiologicaltreatmentprocessandlowconsumption,organicvolumeload,generally5-10kgCOD/m3.d,uptoamaximumof30-50kgCOD/m3.d;lessres
4、idualsludge;onthenutritionalneedsoflowanaerobes,MDR-toxic,biodegradableorganicmolecularweighthighimpactresistantcapacityofstrongoutputofmethaneisakindofcleanenergy. Inthewholeofsocietytopromotearecyclingeconomyandtheimplementationoftheconcernsoftheindustrialwasterecyclingtoday,anaerobicbiolo
5、gicaltreatmentofsewageisclearlyenablestheoptimizationofresources.Inrecentyears,theanaerobicwastewatertreatmentprocessdevelopedveryrapidly,withnewtechnology,newmethodsemerging,includinganaerobiccontactmethod,theup-flowanaerobicsludgebedanaerobicstallplate,anaerobicbiologicalfilter,anaerobicexpan
6、dedbedandfluidizedbed,andthethirdgenerationofanaerobicprocessEGSBandICanaerobicreactor,developedveryrapidly. Andtheup-flowanaerobicsludgeblanketUASB(Up-flowAnaerobicSludgeBed,Note:hereinafterreferredtoUASB)owingtotheanaerobicprocessofanaerobicfiltersandactivatedsludgecharacteristicsofthedual
7、,ascanbetransformedintothepollutantsinthesewage10%ofrenewablecleanenergy-abiogastechnology.Thedifferentsolidcontentofthesewageadaptabilityalsostrong,anditsstructure,operationandmaintenancemanagementoperationisrelativelysimpleandre
