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1、附录AThestatusquoanddevelopmentofUASBanaerobicprocessAbstractThispaperintroducestheoriginofUASBreactor,theworkingprinciples,characteristics,thedevelopmentandapplicationofthelatestresearchprogress,pointingoutthattherecentUASBreactorresearchfocus.Keywords:UASB；anaerobictreatmentprocess1.Introduction
2、:Anaerobicbiologicaltreatmentastheuseofanaerobicmetabolismofmicroorganisms,withouttheprovisionofenergysourcesundertheconditionsoforganicmatterastoberestoredbyhydrogendonor,whilegeneratingenergyvalueofthemethanegas.Anaerobicbiologicaltreatmentappliesnotonlytohighconcentrationsoforganicwastewater,
3、influentBODuptothehighestconcentrationoftensofthousandsofmg/l,canalsobeappliedinlowconcentrationsoforganicwastewater,suchassewage,andothercities.Anaerobicbiologicaltreatmentprocessandlowconsumption,organicvolumeload,generally5-10kgCOD/m3d,uptoamaximumof30-50kgCOD/m3d;lessresidualsludge;onthenutr
4、itionalneedsoflowanaerobes,MDR-toxic,biodegradableorganicmolecularweighthighimpactresistantcapacityofstrongoutputofmethaneisakindofcleanenergy.Inthewholeofsocietytopromotearecyclingeconomyandtheimplementationoftheconcernsoftheindustrialwasterecyclingtoday,anaerobicbiologicaltreatmentofsewageiscl
5、earlyenablestheoptimizationofresources.Inrecentyears,theanaerobicwastewatertreatmentprocessdevelopedveryrapidly,withnewtechnology,newmethodsemerging,includinganaerobiccontactmethod,theup-flowanaerobicsludgebedanaerobicstallplate,anaerobicbiologicalfilter,anaerobicexpandedbedandfluidizedbed,andth
6、ethirdgenerationofanaerobicprocessEGSBandICanaerobicreactor,developedveryrapidly.Andtheup-flowanaerobicsludgeblanketUASB(Up-flowAnaerobicSludgeBed,Note:hereinafterreferredtoUASB)owingtotheanaerobicprocessofanaerobicfiltersandactivatedsludgecharacteristicsofthedual,ascanbetransformedintothepollut
7、antsinthesewage10%ofrenewablecleanenergy-abiogastechnology.Thedifferentsolidcontentofthesewageadaptabilityalsostrong,anditsstructure,operationandmaintenancemanagementoperationisrelativelysimpleandrelativelylowcost,technology
