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26 12007 1 ENVIRONMENTALCHEMISTRYVo.l26,No.1January 2007 “”(2006810). *(50578012,50178009).ABR*芦家娟1 王毅力2 赵洪涛3 韦红才2 张 征2(1 ,,100085;2 ,,100083;3 ,,117000) 20—30℃,ABR169d5,COD4.38kgCODm-3d-1,COD,(VFA)pH;,2—3.8mm,20mh-1,MLVSSM/LSS65%;(SVI).,,,,,.,,,,,,. ABR,,. (ABR)、、、、,[1].ABR,[2—6],35—40℃,. 20—30℃ABR.COD(VFA),.1 5mm,××=500mm×150mm×310mm,14.55L.5,、,45°,,,,RS008-A(50W)20℃—30℃. 、、、,COD∶N∶P=350∶5∶1,Mg,FeCu,Co,NiMn,NaHCO3,pH6.8—7.5. ,,,、. ABR、pH、COD,(VFA).,.2 ABR ,24h,.COD0.76kgCODm-3d-14.38kgCODm-3d-1,COD2.8kgCODm-3d-1,30%,20%. 1—3,COD,5:(30d)COD800mgl-1,COD,300mgl-1,150mgl-1,COD;(18d)COD1300 1:ABR11 mgl-1,COD,200—300mgl-1,COD,88%83%,4d77%,72%85%,VFA3.15mmoll-1,pH7.04;(16d)COD1600mgl-1,COD300mgl-1,COD,5d3%(85%→82%),79%;(15d)COD2000mgl-1,COD450mgl-1,300mgl-1,COD,85%77%,80%,VFA2.22mmoll-1,pH7.04;(90d)COD,40dCOD2550mgl-1,,COD67%,COD645mgl-1,VFA3.5—11mmoll-1,pH6.9—7.1,.116dCOD2000mgl-1,.3d,,COD88%,169d,COD2550mgl-1,COD90%,COD150mgl-1,VFA2.3mmoll-1,pH7.0. ,CODABR,,COD.,1,VFAs,pH,,VFAs,H2/CO2“”(、、、),pH(6.8—7.2),,VFA,10mmoll-1,,VFA2—4mmoll-1,pH6.8—7.2.COD,pH,,6.9—7.3.,,,12 26pH.,VFA.3 ,4.,1,,.2,,,.34,,,,4C,[7],.5,4E,.4 Fig.4 BacteriaobservedintheABRthroughmicroscopicphotographicsystem ,,5.30.5000.,,,5(a).,1,1,1.2,,3,,4,,,5,,. 5(b),,,1、、,,、、.2,,,; 1:ABR13 .3,,,、.45,、、、、,;.,4.,1,,,,,. (5(c)),.,.,.4,,,,,.4 ABR[8],,.18d,0.86kgCODl-1d-1,5.,,2,2.83kgCODl-1d-1,,25、.5,,4.38kgCODl-1d-1,,.,12,,,. 1,3(MLSS),16.8gl-1,MLSS30gl-1,4,37.1gl-1.(MLVSS),3,5;,,,MLVSS5—10gl-1[13],.,12MLSSMLVSS,3.MLVSSM/LSS,35,4,MLVSSM/LSS65%,175%. Nachaiyasit[9]3:、、,ABRpH,.1,23,45..1 Table1 Physicalcharacteristicsofgranularsludgeineachcompartmentafterstart-up12345(MLSS)/gl-129.930.816.837.127.6/gl-17.38.65.711.39.5(MLVSS)/gl-122.622.211.125.918.1MLVSSM/LSS/%75.672.166.169.865.6(100ml)/%046533(SVI)/mlg-101.338.70.81.1/mh-128.9840.1034.9235.4231.03/mm2.113.273.323.593.7714 26 1:ABR15 [10],18—100mh-1,20mh-1.:3(SVI),38.7mlg-1,,3.3mm,,34.92mh-1,;1SVI,,15,,,53.7mm,,.1SVI0,28.98mh-1,3SVI,1,SVI,.,,,SVI,SVI;1,.,,5.,Sezgin[11]Barber[12],SVI,SVI.,,,.,1,2,4,5,3;,40μm;,,、,SVI.,,,,Barber[13],,.,,12mm,3.2mm,2,3,Holt[3],Barber[13][5];,,MLVSSM/LSS,.5 (1)20—30℃,169d,5ABR,COD4.38kgCODm-3d-1,(COD,VFA,pH). (2):,,,,,. (3),,,,.,. (4),2—3.8mm,20mh-1,MLVSSM/LSS65%;SVI,,38.7mlg-1,. [1] ,,,———[J].,2002,22(4)∶5—8[2] BoopathyR,TilcheA,AnaerobicDigestionofHighStrengthMolassesWastewaterUsingHybridAnaerobicBaffledReactor[J].Wat.Res.,1991,25(7)∶785—790[3] HoltCJ,MatthewRGS,TerzisE,AComparativeStudyUsingtheAnaerobicBaffledReactortoTreataPhenolicWastewater[C].Proceedingsofthe8thInternationalConferenceonAnaerobicDigestion.Sendi,Japan.,1997,40—47[4] ,,,[J].,1999,17(1)∶12—16[5] ,,,ABR[J].,2002,28(9)∶33—36[6] ,,,ABR[J].,2002,16(8)∶42—44[7] ,,,[M].:,2001,37—3716 26[8] BarberWP,StuckeyDC,TheUseoftheAnaerobicBaffledReactor(ABR)forWastewaterTreatment:aReview[J].Wat.Res.,1999,33(7)∶1559—1579[9] NachaiyasitS,StuckeyDC,TheEffectofShockLoadsonthePerformanceofAnaerobicBaffledReactor(ABR)..lStepChangesinFeedConcentrationatConstantRetentionTime[J].WaterRes.,1997,31(11)∶2737—2746[10] ,[M].:,2002,181—187[11] SezginM,VariationofSludgeVolumeIndexwithActivatedSludgeCharacteristics[J].WaterRes.,1982,16(1)∶83—88[12] BarberJ,VeenstraJ,EvaluationofBiologicalSludgePropertiesInfluencingVolumeReduction[J].J.WPCF,1986,58(2)∶149—155[13] BarberWP,StuckeyDC,Start-upStrategiesforAnaerobicBbaffledReactorsTreatingaSyntheticSucroseFeed[C].In:Proc8thInternationalCon.fOnAnaerobicDigestion,1997,32—39THESTART-UPOFANAEROBICBAFFLEDREACTOR(ABR)ANDTHECHARACTERISTICSOFGRANULARSLUDGELUJia-juan1 WANGYi-li2 ZHAOHong-tao3 WEIHong-cai2 ZHANGZheng2(1 StateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing,100085,China;2 CollegeofNatureResourceandEnvironment,BeijingForestryUniversity,Beijing,100083,China;3 EconomicDevelopmentZoneAdministrationCommitteeofBenxi,LiaoningProvince,Benxi,117000,China)ABSTRACT Thisstudyexaminedthestart-upofanaerobicbaffledreactor(ABR)atthetemperatureof20—30℃.Throughfive-stageexperimentsduring169days,thevolumetricloadingrateoftheinfluentreachedaround4.38kgCODm-3d-1,andwithsuitablevaluesoftheeffluentCOD,volatilefattyacid(VFA)andpH.Abundantgranularsludgewithgoodcharacteristicswereexistedinthereactor,suchasgranularsize2—3.8mm,morethan20mh-1ofsettlingvelocitiesandMLVSSM/LSSabove65%.However,differentSVIvalueswerefoundineachcompartmen.tThemicroscopicanalysisresultsshowedthatcooperativeanaerobicmicrobialcommunitiesdistributedwithindifferentcompartments.Thedominantbacteriainthecompartmentonewerezymogen,andmuchfilamentousMethanogenicbacteriathatcanabsorbaceticacidwerealsoob-served.Towardstheendsofthereactor,thedominantbacterialpopulationsshiftedstepwisetoMethanogenicbacteriaingranularsludge,andappearinglotsofprotozoanandmetazoan.Astosinglegranularsludgewithdifferentshape,theairholeswereinitsunevensurface.Thefewermicrobeswerefoundinthecoreofthegranularthanonthesurface,whilethebacteriasecret