UASB的启动及其影响因素孙振世

UASB孙振世　陈英旭　杨　晔(,　310029)　:UASB,。:UASB;;:X703.1,S216.4　　:A　　:1000-1166(2000)02-0017-04Start-upofUASBandInfluencingFactors/SUNZhen-shi;CHENYing-xu;YANGYe(DepartmentofEnvironmentalEngineering,ZhejiangUniversity,HangZhou,310029,P.R.China)Abstract:FactorsinfluencingUASBstart-upandattentionsthatshouldbepayedwerediscussedinthispaperintermofprac-tices.Furthermore,someofeffectivewaysofquickeningthestart-upwereintroduced.Keywords:　UASB;start-up;influencingfactors　　70LettingaUASB,UASB。,,,,,,UASB。,UASB。1　UASB,,。UASB,、。UASB,　　:2000-01-18。UASB,,、。,UASB。UASB:、;,;,、pH、、;,、、。1.1　接种污泥UASB:,。,,,。,[1]UASB,,17　ChinaBiogas2000,18(2),,。,Fang[2],UASB,110,。UASB,,[3]。Lepisto[4],,28d60%COD。,,。Lettinga,UASB12～15kgVSS·m-36kgVSS·m-3。UASB6～15kgVSS·m-3。,,,。,。1.2　废水的性质Lettinga,UASB,COD4000～5000mg·L-1,。1000-4000mg·L-1,。,,。,,2000mg·L-1,Souza[5],SS,:SS1000mg·L-1SS/COD0.5,UASB。。,。,,UASB。,,。1.3　环境条件UASB。UASB(25℃),(33℃～41℃)(55℃),。UASB,[6,7]。,,。,。,。。,±3℃,。[8]。,,,。,,,。,UASB,,。,C∶N∶P=75∶5∶1,CCOD,COD∶N∶P=200∶5∶1。COD300。,、、。,。,,,,,。18　ChinaBiogas2000,18(2)100～150g·L-1[9]。UASB。,,,,。pH、。pH,,pH7.2～7.6。,COD1∶3,,。[10],1000mgCaCO3·L-1,,,。Ca2+、Mg2+CO2-3、SO2-4,。1.4　启动运行条件UASB,0.05～0.10kgCOD·kgVSS-1·d-1,,,,50%,,0.6kgCOD·kgVSS-1·d-1。[11]。,;。,。,0.3m3·m-2·h-1,,。2　UASBUASB,,。2.1　投加无机絮凝剂或高聚物,,、。MacarieGuyot[12],,FeSO4,,,UASB。,UASB,750mg·L-1(WAP),[13]。2.2　投加细微颗粒物UASB,、、,,、,,,。[14]、,,2%～3%。,,0.4mm,。,,。,,。,UASB,。3　、(下转31页)19　ChinaBiogas2000,18(2)“、、、”,(),。,,。3.6　加强企业化管理,走公司(集团)化道路,()。、,,。,(),,,,,。,,,,、,。,,。“”、“”;()();、、。,,。,、、、21。(19)UASB。UASB,UASB,,,,。:[1]　,UASB[J].,1995,11(3):7.[2]　FangHHP,LaulWC.Start-upofthermophilic(55℃)UASBreactorsusingdifferentmesophilicseedsludges[J].Wat.Sei.Technol.1996,34(5-6):445.[3]　,,.UASB[J].,1994,10(3):8.[4]　LepistoSS,RintalaJA.Start-upandoperationoflaborato-ry-scalethermophilicupflowanaerobicsludgeblankreactortreatingvegetableprocessingwastewater[J].J.Chem.Tech-nol.Biotechnol.1997,68:331.[5]　SouzaME.CriteriafortheutilizationdesignandoperationofUASBreactors[J].Wat.Sei.Technol.,1986,18(12):55.[6]　Koster1W,etal.ApplicationoftheUASBprocessfortreat-mentofcomplexwastewateratlowtemperatures[J].Biotech-nol.Bioeng.,1985,27(10):1411.[7]　,.UASB[J].,1997,15(1):10.[8]　VanlierJB.etal.Tempraturesusceptibilityofthemophilicmethanogenicsludge:Implicationsforreactorstartupandoperation[J].Biores.Technol,1993,43:227.[9]　12.CooneyCLGrowthofmicroorganisms[A].In:rechmH-J.ReedG(eds)Biotechnology.Acomprehensivetreatisein8volumes.Vol1:Microbialfundamentals[C].VerlagChemie.Weinheim-Deer-fieldBeach.ForidaBasel.73.[10]　.UASB[J].,1997,15(3):11.[11]　,[M].:,1996,209～318.[12]　MacarieH,GuyotJP.UseofferroussulphatetoreducetheredoxpotentialandallowthestartupofUASBreactorstreatingslowlybiodegradablecompounds:applicationtoawastewatercontaining4methylbenzonicacid.Environ[J].Technol,1995,16:1185.[13]　ImaiT,UkitaM,LiuJetal.Advancedstart-upofUASBre-actorsbyaddingofwaterabsorbingpolymer.Wat[J].Sci.Technol,1997,36(6):399.[14]　,,.UASB[J].,1996,12(5):16～19.31　ChinaBiogas2000,18(2)