UASB启动过程中污泥颗粒化的形成机制初里冰

UASB启动过程中污泥颗粒化的形成机制初里冰,　张兴文,　杨凤林,　李晓惠(,　116023)　:UASB:、。0.56gCOD/L/d4.4gCOD/L/d,COD80%。。:UASB;　;　:X705　　:A　　:1003-6504(2005)02-0022-03　　。。,。UASB[1]。UASB,,。1　1.1　试验装置与流程1。UASBPVC。,3.3L;,1.4L。30℃。　　1　,(mg/L):,720;,150;,150;,100;,30;NH4Cl,50;K2HPO43H2O,40;MgSO47H2O,12;CaCl2,10;FeCl36H2O,10。NaHCO3pH。COD1000mg/L。　　,;,:(1971-),,,,,()0411-4706172。、。。20d,。11.7gVSS/L,VSS/TSS52.6%,SVI83.9mL/gTSS。1.2　分析方法COD、(TSS)、(VSS)[2];GC-14C;(VFA)。Joo-HwaTay[3],,30℃。A.Laguna[4]。EM-1200EX,JEOL。:2.5%→→50%、70%、80%、90%、95%100%→3,10min→→,(IONSPUTTER,JFC-1100),→。:,;2%。2　2.1　反应器的启动和污泥颗粒化进程,。,COD(CODdis)。CODdis80%,,(HRT)。pH6.5～7.2,pH6.6～7.6,330.3～770.7mg/L;COD、CODdis、CODdis,VFA、TSS2。24,UASB:22　　　　　　　　　　　28　2　20053　　　　　DOI:牨牥牨牴牰牱牪牤jcnki牨牥牥牫牰牭牥牬牪牥牥牭牥牪牥牨牥、。　　2　,、,。,,(40d),0.56gCOD/(Ld),0.05gCOD/gVSS/d,0.04m3/(m2h)-1,。,,(80d).1.09gCOD/L/d,0.08～0.22m3/(m2h)-150d,,0.96～1.78L/d,62%～69%。,90d,,1mm,,。120d,,0.85mm45%,VSS/TSS0.70,SVI37.3mL/gTSS,0.70,SVI37.3mL/gTSS,0.49gCH4-COD/Gvssd-1。,,90d,4.4gCOD/(Ld),0.43gCOD/gVSS/d,HRT5.5h,CODdis81%,2.1～2.4L/d,63%～72%。,,VFATSS。VFA,。VFA800mgCOD/L,。VFA,,VFA150～642mgCOD/L()。UASBTSS。TSS。,TSS;,,,,。,TSS,15mL/g。2.2　反应器内污泥浓度的变化3。,,,;,。,,40cm。　　3　2.3　培养的颗粒污泥的性质,,SVI25mL/gTSS,1020kg/m3,VSS/TSS0.73,1.08gCH4-COD/gVSS/d4,0.85mm62.3%。。,,,。;,,、。,。　　4　5(b),,,,,。、(6)。3　UASB,(下转第113页)23UASB　,。4　MSBRA2/O、Bardenpho、Phoredox、Cass、T、Unitank、SBR,。MSBR,,BNR。MSBR,、、,。MSBR。,,、、MLSS、DO、。,、,MSBR、,、、,、、,。,,MS-BR、,,,MSBR,。[][1]　,,,.—MS-BR[J].,1999,25(6):10-12.[2]　,,.SBR[J].,1999,15(8):9-15.[3]　,,.MSBR[J].,2001,17(1):9-14.[4]　,.MSBR[J].,2002,28(1):22-24.[5]　,.[J].,1999,20(5):22-26.[6]　,.[J].,1999,18(11):485-487.[7]　.—MSBR[J].,1999,15(6):22-24.[8]　.MSBR[J].,1999,21(4):21-25.[9]　,.MSBR[J].,2000,26(11):6-9.[10],.[M].:,1999.[11].[J].,1997,(3):10-11.[12],,.[J].,2002,3(6):65-68.[13],,,.[J].,2002,24(3):132-134,143.[14],TimpanyPL.、[J].,2001,17(7):17-22.(:2003-10-20;:2003-12-26)(上接第23页)5　6　40d、80d60d。4.4gCOD/L/d,0.43gCOD/gVSS/d,COD80%。0.85mm62.3%;,,。[][1]　.[M].:,1998.[2]　.()[M].:,2002.[3]　JHTay,YGYan.Influenceofsubstrateconcentrationonmicrobialselectionandgranulationduringstart-upofupflowanaerobicsludgeblanketreactors[J].WaterEnvironmentResearch,1996,68:1140-1150.[4]　ALaguna,AOuattara,ROGonzalez,etal.Asimpleandlowcosttechniquefordeterminingthegranulometryofup-flowanaerobicsludgeblanketreactorsludge[J].Wat.Sci.Tech.,1999,40:1-8.(:2003-12-01;:2004-03-08)113　,　(DepartmentofEnvironmentalandChemicalEngineering,NanchangInstituteofAeronauticTechnology,Nanchang330034)AbstractID:1003-6504(2005)02-0015-03EAAbstract:ThephotocatalyticreductionofHg2+cation(aqueoussolutionofmercurychloride)usinganataseTiO2wasstudiedasafunctionofirradiationtime,pHofthesolution,d-galactose.ResultsshowedthatphotoreductionefficiencyofHg2+cationreachedthehighestvaluein20minillumination,andthende-creasedalittle;thephotoreductiondecreasedwiththedecreaseofpHvalue.Addingd-galactoseenhancedphotoreductionofHg2+cationandmadephotoreductionefficiencyincreasedcon-tinuously,afteraddingamountofd-galactoseexceeded16mmol/L,differentaddingamounthadsimilareffectivere-sults,theyallledtoacompletephotoreductioninabout90minillumination.Keywords:anataseTiO2;photocatalyticreduction;Hg2+cat-ionStudyonIncinerationProcessofHighConsistencyElectronWastewaterSUNDa-guang(JilinAcademyofEnvironmentScience,Changchun130012)AbstractID:1003-6504(2005)02-0017-03EAAbstract:Thedisposalmechanismanddesignparametersofhighconsistencyorganicwastewaterwasproposedbasedona-nalysisofanincinerationengineeringinanelectronworks,whichcanoffersomescientificreferencestoimprovetheexist-ingprincipleandenhanceoperationalefficiency.Keywords:electronwastewater;highconsistencyorganicwastewater;incinerationStudyonArtificialInoculationofMunicipalSolidWasteThermophilicAerobicCompostingWANGGuang-yu1,CHENLei1,XUANShi-wei1,WANGEr-de2(1.ResearchCentreofEnvironmentalMicroorganismEngineering,HarbinInstituteofTechnology(Weihai),Weihai264209;2.AcademyofScienceandTechnology,HarbinInstituteofTechnology,Harbin150001)AbstractID:1003-6504(2005)02-0020-03EAAbstract:Artificialinoculationofmunicipalsolidwastebyther-mophilicaerobiccompostingwasstudied.Theprimemicroor-ganismspeciesofvariousperiodswerescreenedfromthermoph-ilicaerobiccompostinginconstantcultivator,inwhichtemper-atureissimilartothecentreofthermophilicaerobiccompos-ting.Thescreenedmicrobiology,cultivatedindividually,blen-ded,wereinoculatedintolargescalesthermophilicaerobiccom-posting.Thedegradationatdifferenttemperatureandquantityofmicrobiologywasassessed.Resultsindicatedthatitisfeasi-bletointimatetemperatureofthermophilicaerobiccompostingbyconstantcultivator.Theinoculationoffirstfermentationhasnoremarkableeffectbecauseofthequantity,butinoculationofthemoldincreasestemperatureofcompostingandenhancesdegradationinsecondfermentation.Finallythearticleindicatedaddingmicroorganismsmayimprovequalityofcompostingandshowclearlythedirectionformicroorganismsscreening.Keywords:municipalsolidwaste;thermophilicaerobiccom-posting;fermentation;artificialinoculation;microbiologyCharacterizationofGranulationProcessDuri