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1、ThestatusquoanddevelopmentofUASBanaerobicprocessAbstractThispaperintroducestheoriginofUASBreactor,theworkingprinciples,characteristics,thedevelopmentandapplicationofthelatestresearchprogress,pointingoutthattherecentUASBreactorresearchfocus.Keywords:UASB；anaerobictrea
2、tmentprocess1.Introduction:Anaerobicbiologicaltreatmentastheuseofanaerobicmetabolismofmicroorganisms,withouttheprovisionofenergysourcesundertheconditionsoforganicmatterastoberestoredbyhydrogendonor,whilegeneratingenergyvalueofthemethanegas.Anaerobicbiologicaltreatmen
3、tappliesnotonlytohighconcentrationsoforganicwastewater,influentBODuptothehighestconcentrationoftensofthousandsofmg/1,canalsobeappliedinlowconcentrationsoforganicwastewater,suchassewage,andothercities.Anaerobicbiologicaltreatmentprocessandlowconsumption,organicvolumel
4、oad,generally5-10kgCOD/m3d,uptoamaximumof30-50kgCOD/m3d;lessresidualsludge;onthenutritionalneedsoflowanaerobes,MDR-toxic,biodegradableorganicmolecularweighthighimpactresistantcapacityofstrongoutputofmethaneisakindofcleanenergy.Inthewholeofsocietytopromotearecyclingec
5、onomyandtheimplementationoftheconcernsoftheindustrialwasterecyclingtoday,anaerobicbiologicaltreatmentofsewageisclearlyenablestheoptimizationofresources.Inrecentyears,theanaerobicwastewatertreatmentprocessdevelopedveryrapidly,withnewtechnology,newmethodsemerging,inclu
6、dinganaerobiccontactmethod,theup-flowanaerobicsludgebedanaerobicstallplate,anaerobicbiologicalfilter,anaerobicexpandedbedandfluidizedbed,andthethirdgenerationofanaerobicprocessEGSBandICanaerobicreactor,developedveryrapidly.Andtheup-flowanaerobicsludgeblanketUASB(Up-f
7、lowAnaerobicSludgeBed,Note:hereinafterreferredtoUASB)owingtotheanaerobicprocessofanaerobicfiltersandactivatedsludgecharacteristicsofthedual,ascanbetransformedintothepollutantsinthesewage10%ofrenewablecleanenergy-abiogastechnology.Thedifferentsolidcontentofthesewagead
8、aptabilityalsostrong,anditsstructure,operationandmaintenancemanagementoperationisrelativelysimpleandrelativelylowcost,technologyisn
