产甲烷UASB中颗粒污泥的快速培养及特性研究

UASB1,2,1,1,3(1.,400030;2.,400030;3.,430056):,UASB,CODUASB,36dUASB1.0mm64%,COD300mg/L,,:(2005BB7253):;;UASB;;:703.1:A:1000-4602(2008)09-0021-05StudyonQuickCultivationofGranularSludgeandItsCharacteristicsinMethanogenicUASBLIDong2wei1,2,WANGKe2hao1,XUZhong2hui1,YANGJian3(1.CollegeofResourceandEnvironmentalScience,ChongqingUniversity,Chongqing400030,China;2.KeyLaboratoryofExploitationofSouthwestResourcesandEnvironmentalHazardsControlEngineeringMinistryofEducation,ChongqingUniversity,Chongqing400030,China;3.DongfengDesignInstituteCo.Ltd.,Wuhan430056,China)Abstract:Basedonthetwo2phaseanaerobicreactor,thequickcultivationofgranularsludgeanditscharacteristicsinmethanogenicUASBwerestudied.Start2upatlowloadingrate,quickincreasingoftheinfluentCODandshorteningofHRTcausemethanogenicUASBtobeoperatedunderoptimalcondi2tion.After36daysofoperation,64%oftotalgranularsludgeismorethan1.0mm,theeffluentCODislessthan300mg/L.Itisbelievedthatthecultivationofgranularsludgeissuccessfullyachieved.Thematurationofgranularsludgeexperiencesfourstagesincludingformationofirregularcore,extrusionandbridging,divisionandgrowth,shearandaccretion.Besides,thefactorsacceleratingthesludgegranula2tionincludetheappropriategrowingenvironment,goodhydrauliccharacteristicsandsoon.Keywords:two2phaseanaerobictreatment;methanogenicphase;UASB;quickstart2up;granularsludge[12]1224920085CHINAWATER&WASTEWATERVol.24No.9May2008转载中国科技论文在线,UASB,111111Fig.1Schematicdiagramoftwo2phaseanaerobicreactorUASB(R1),(R2)30,2.36L,2.10L;70mm,450mm,1.50L;100mm,120mm,0.60L,28.6%5.15L,4.50L;80mm,800mm,3.50L;120mm,150mm,1.0L,22.2%;45,50mm,,5mm10L,112,31(),[3];NaHCO3pH6.57.3;NH4ClKH2PO4NP,CODNP=30051,,,0.6mm,SS32.3g/L,VSS11.86g/L,VSS/SS36.72%R11.0L,250mm15.37gSS/L5.65gVSS/L,21.53gSS/L7.91gVSS/LR22.6L,400mm18.67gSS/L6.86gVSS/L,24.00gSS/L8.82gVSS/L113COD:[4];:,CaO;pH:;SSVSS:;:;:114,,,,1d,,COD,11Tab.1Operationalconditionduringstart2upstage/dCOD/(mgL-1)/(Ld-1)/(kgCODm-3d-1)HRT/h/(m3m-2h-1)R1R2R1R2135004.200.3312.0025.710.0830.0394610005.500.829.1620.000.1090.05171220005.901.788.5418.310.1170.055131830006.673.037.5616.190.1330.062192640008.204.976.1513.170.1630.076273150009.307.055.4211.610.1850.086323660009.308.465.4211.610.1950.09122249:(112d),,R2,,,,10R2,,,R1,R2R1,,,,,R2,,(1326d)1318dR2,,,0.5mm,,,15cm,12mm;1mm(2736d)R220cm,60%,13mm,,;SSCOD300mg/L,,,R2212CODCOD232CODFig.2VariationofinfluentandeffluentCODduringstart2up3CODFig.3CODremovalefficiencyduringstart2up3,49dUASBHRT25.71h18.31h,COD60%,,,,COD,UASBCOD,,,COD;UASBpH,,COD1326dUASBHRT16.19h13.17h,2.29kgCOD/(m3d)5.0kgCOD/(m3d),COD60.23%79.32%36HRT11.61h,8.90kgCOD/(m3d),32:UASB249中国科技论文在线(m2h),UASBCOD95.21%,COD96.66%213VSS/SSUASBSS162mg/L,SS34mg/L,UASB,,VSS/SS0.71,,,2142636dUASB,,44UASBFig.4SizedistributionofgranularsludgeinmethanogenicUASBreactor4,,UASB1.0mm64%,,1.03.0mm50%,215,,UASB,20d1.5mm,,,,,;36d,2.5mm,,,1.0mm21636,,,UASB,3UASB,[5]:,,,,,,,,,,,,,,,,[0.06m3/(m2h)],,,,,,,20,,,,,,,[6]:42249(6.87.2)(450750mg/L)UASB,,;,4,COD,CaOpH7.00.3,UASB36dUASB80%,13mm,SS,COD300mg/L,UASBUASB,,:[1]KeShuizhou,ShiZhou,FangHerbertHP.Applicationsoftwo2phaseanaerobicdegradationinindustrialwastewatertreatment[J].IntJEnvironPollut,2005,23(1):65-80.[2],,,.[J].,2005,21(3):49-52.[3]ShowKuan2Yeow,WangYing,FoongShiu2Feng,etal.Acceleratedstart2upandenhancedgranulationinupflowanaerobicsludgeblanketreactors[J].WaterRes,2004,38(5):2292-2303.[4].(3)[M].:,1997.[5],,,.ABR[J].,2003,23(5):575-581.[6],,,.ABR[J].,2007,23(5):73-77.:(1966-),,,,,:[phone]E-mail:[e-mail]:2008-01-14(20)metalsusingiron2oxide2coatedsand[J].WaterRes,1996,30(11):2609-2620.[7]ChangYY,SongKi2Hoon.Applicationofiron2coatedsandandmanganese2coatedsandonthetreatmentofbothAs()andAs()[J].WaterSciTechnol,2007,55(1-2):69-75.[8]ThirunavukkarasuOS,ViraraghavanT.Arsenicremovalfromdrinkingwaterusingironoxide2coatedsand[J].WaterAirSoilPollut,2003,142(1):95-111.[9].(4)[M].:,2002.[10]CJ24.188,[S].[11],.[J].,2002,18(4):1-4.[12],.[J].,2002,22(12):34-36.[13],,.[J].,2006,25(2):32-34.[14],,.XRDFTIRXPS[J].,2007,27(3):402-407.[15]DermatasD,MengX.RemovalofAs,CrandCdbyad2sorptivefiltration[J].GlobalNest:TheInternationalJournal,2004,6(1):73-80.[16],,,.[J].(),2007,35(8):1080-1084.:(1976-),,,,,:[phone]E-mail:[e-mail]:2008-01-0952:UASB249中国科技论文在线