UASB工艺系统设计方法探讨王凯军

UASB王凯军(,　100037)　:UASB。UASB、UASB。UASB。UASB。:UASB;;;;;:X703,S216.4　:A　:1000-1166(2002)02-0018-06DesignofUpflowAnaerobicSludgeBlanket(UASB)ReactorSystemWANGKai-jun/(BeijingMunicipalResearchInstituteofEnvironmentalProtection,Beijin100037,China)Abstract:ThepurposeofthispaperistodiscussthedesignproceduresofUASBsystem。Thedesignprincipleandmethodsofpre-treatmentsystemandUASBreactorwereemphasized.ThediscussionfocusedonconcretestructureofUASBreactor,in-cludingdimensioncalculationanddeterminationprinciple.Theinfluentdistributionsystemanddifferentdistributorswereintro-duced.Thethree-phaseseparatorandconstructionmaterialofUASBreactorwerealsodiscussed.KeyWords:UASBreactor;pre-treatment;distributionsystem;three-phaseseparator;constructionmaterial;design1　、。、,,,。UASB,UASB。,,UASB,UASB,。、(、)、,1。2　UASB2.1　预处理设施、、、()、pH。,。,,。1　UASB　　:2001-11-15　:2002-03-26　　:(1960-),,,,,,、。18　ChinaBiogas2002,20(2)2　UASB,。、,、。,、、、。,;pH,(N,P,),、,。、,。,;,,,。,pH,pH。UASB。:(1);(2)Ca2+,CaCO3;(3),;(4)。,,(1.0m)。5～10m2。2.2　UASB反应器体积的设计2.2.1　(q)(HRT)UASB。qHRT,(V)(12)。,。V=QSoq　　　　　　　　(1)V=Q·HRT　　　　　　　(2):Q———,m3·d-1;So———,gCOD·L-1gBOD5·L-1。1UASB,,。,。2.2.2　LettingaHRT(E),,。HRT=1-EC1C2:C1,C2———。2.2.3　,Henx-enHarremoes(1983)(2)。,,。2.3　UASB反应器的详细设计2.3.119　ChinaBiogas2002,20(2)1　UASBCODkgCOD·m-3d-1　　　　　　　　　　　　　　　　111.615.77.176.520.02.0　1529.818.85.6805.38.05.0　10313.918.59.9366.410.04.0　8410.212.08.0456.812.01.885.05.05.0　1268.610.76.6679.211.46.465.48.02.7　289.516.84.02499.812.46.0166.06.06.0　1108.414.31.0314.820.06.5　3113.24.02.3　212,12.320.07.9151312.738.96.039149.113.30.8103.54.03.0　2156.26.26.213.14.02.3　41615.222.58.2121710.933.26.3115.08.00.8　51810.510.510.51199.912.07.972　(HenxenHarremoes,1982)μm/d-1YmgVSS·mgCOD-1KmmgCOD·mgVSS-1d-1KsmgCOD·L-12.00.15132000.40.0313500.40.182—　　,(V)(1)(2)。、。、:,,。,,;CO2,CO2,,pH。pH,。:,;,,。()4～6m,。2.3.2　UASB(2)。3,,(2～6h)()。2.3.3　、()(H),(A)。,,UASB。600m2,30m×20m15m×40m10%,10%。,20　ChinaBiogas2002,20(2)3　UASB()UASBVr=0.25～3.0mh-1　　0.75～1.0mh-1Vs≤1.5mh-1　≤8mh-1Vo≤12mh-1　≤3.0mh-1Vg=1mh-1,,2:1。4:1。,12%。。,。,。,。2.3.4　UASB,。,,;,,;,,,。,UASB()1000～2000m3。2.3.5　,。2×5m,,,,,5m,2m。。,。,,。10m,2:12000m3。,。3　3.1　配水孔口负荷。UASB,Lettin-ga,2.0～4.0m2。20℃,,。,DeManVanderLast(1990)1～2m2·-1。4LettingaUASB。4　UASBm2CODkg·m-3d-10.5～11～222.02～4440kgDS·m-31～6.51～21.01～22～32120～40kg·m-31～22～51～22　　:DS3.2　进水分配系统UASB,,,:1.,;2.,;3.;4.,。()、、;、。(1)(),21　ChinaBiogas2002,20(2),(3a)。,(),。。(2)UASBa)　　　　b)　　　　　　c)()3　UASB。,。3b,。(3),,2.0m·s-1。。,,。(4),(3c)。,54m2。,。,,。,。,,。,。3.3　配水管道设计,,;;,,2.0mm0.2～0.3m·s-1,,2mm,。,,。,;(),,;,,;(),(10cm)。()30cm。,。4　、、22　ChinaBiogas2002,20(2)　　UASB。:1.;2.。:(1)15%～20%;(2)5～7m,1.5～2m;(3),;(4),;(5)100～200mm,;(6),。,,,。5　UASB。UASB3～5,、。H2S,,pH。—-300mV,—100mV,,。,。,,。,。,,。。,PVC,。:[1]　.UASB[R].,:96-909-05-04,2000.[2]　.[J].,1998,19(1):94.[3]　Man,A.W.A.,Rijs,G.B.J,Lettinga,G.andvanStarkenburg,W.(1988),AnaerobicTreatmentofSewageUsingAGranularSludgeBedUASB-reactor[A]In:5thInsSymp.onAnaerobicDigestion[C]A.TicheandA.Rozzi(Eds).Monduzzi,Bologna,Italy,pp.735-738.[4]　Last,A.R.M.vanderandLettingaG.,(1991)AnaerobicTreatmentofDomesticSewageunderModerateClimatic(Dutch)ConditionsUsingUpflowReactorsatIncreasedSu-perficialVelocities[A],In:ProceedingsCongressIAWPRCAnaerobicDigestion'91SaoPaul,Brazil.(上接第7页)[8]　UenoY,OtsukaS,MorimotoM.Hydrogenproductionfromindustrialwastewaterbyanaerobicmicroflorainchemostatculture[J].J.Ferment.Bioeng.,1996,82(2):194～197.[9]　HeyndrickxM,VansteenbeeckA,DelVosP,DeLeyJ.Hydrogengasproductionfromcontinuousfermentationofglu-coseinaminimalmediumwithClostridiumbutyricumLMC1213t1[J].System.Appl.Mictobiol.,1986,8:239-244.[10]　TaguchiF,ChangJD,MizukamiN,Ssito-Taki,T,Ha-segawaK,MorimotoM.lsolationofahydrogen-producingbacterium,ClostridiumbeijerinckiistrainAM21B,fromtermites[J].Can.J.Microbiol.,1993,Vol.39:726-730.[11]　,,,.[M].:.1993.22:155-158.[12]　MizumoO,DinsdaleR,HawkesFC,HawkesDL,NoikeT.Enhancementofhydrogenproductionfromglucosebyni-trogengassparging[J].BioresourceTech.2000,73:59-65.[13]　TanishoS,KuromotoM,andKadokuraN.EffectofCO2re-movalonhydrogenproductionbyfermentation[J].Int.J.HydrogenEnergy,1998,23(7):559-563.[14]　RachmanMA,NakashimadaY,KakizonoT,NishioN.Hydrogenproductionwithhighyieldandhighevolutionratebyself-flocculatedcellsofEnterobacteraerogenesinapacked-bedreactor[J].Appl.Microbiol.Biotechnol.,1998,49:450-454.23　ChinaBiogas2002,20(2)