EGSB反应器处理焦化废水的启动试验研究董春娟

EGSB121131．0300092．0300513．150090EGSBEGSB。10dEGSBEGSB6COD2200mg/L、1．2L/h、5．6kgCOD/m3·d、HRT10h、10∶1、3．1m/hEGSBCOD56．2%。EGSB。EGSBX703C1000－4602201109－0091－042007031104－107021003、091008StartupExperimentalResearchofEGSBReactorforTreatmentofCokingWastewaterDONGChun-juan1WANGHai-hui2CHENSu-yun1ZHANGJin-hua1LVBing-nan31．DepartmentofEnvironmentalEngineeringTaiyuanUniversityTaiyuan030009China2．SchoolofChemicalEngineeringandEnvironmentNorthUniversityofChinaTaiyuan030051China3．SchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150090ChinaAbstractToobtaintherapidstartupofEGSBreactorfortreatmentofcokingwastewatertherap-idstartupusingbrewerywastewaterandthequickacclimationusingcokingwastewaterinEGSBreactorseededwithanaerobicdigestionsludgeandasmallamountofgranularsludgewerestudiedunderambienttemperature．TheresultsindicatethattheEGSBreactorcanbestartedupwithin10dwhenusingbrewerywastewater．ThequickacclimationofgranularsludgeintheEGSBreactorcanbeachievedbygraduallyincreasingthecokingwastewatersupplementratioandthisacclimationphaselasts6months．Withtheconditionsofabout2200mg/LofinfluentCODinfluentflowrateof1．2L/horganicloadof5．6kg-COD/m3·dHRTof10hrecycleratioof10∶1andupflowvelocityof3．1m/htheCODremovalratecanreach56．2%．Therecycledilutioncanreducethetoxicityofthecokingwastewatertosomeex-tentandrelativelyhigherupflowvelocityintheEGSBreactorcanenhancethemasstransferswhichen-·19·27920115CHINAWATER＆WASTEWATERVol．27No．9May2011suresthattheEGSBreactorcanoperateefficientlyandstablywhentreatinghighconcentrationcokingwastewater．KeywordsEGSBreactorcokingwastewaterdigestionsludgegranularsludgestartupacclimationCODA2/O、、、、COD1～3。EGSB、、。EGSB、。45EGSB、、。22～27℃EGSBEGSB。11.11。1Fig．1SchematicdiagramofexperimentalsetupEGSB2．3m、18L1．8m、10cm、12L。22～27℃。1.2。、COD∶N∶P=100∶3∶1、S∶P=1∶2、S∶Fe2+=3∶1、Fe2+∶Co2+∶Ni2+=10∶1∶2NH4Cl、KH2PO4、Na2S·9H2O、FeCl2·4H2O、CoCl2·6H2O、NiCl2·6H2OCODNH3－N1400～240070～210mg/L150～500pH6．5～8．1。EGSB1/7。EGSB。21．1g/LMLSSMLVSS/MLSS0．51。1.3EGSB。COD。COD2200mg/L5%、10%、15%、20%、25%、30%、40%、50%、60%、70%、80%、90%100%。1.4COD、MLSSMLVSSpHPHS－3CMarriotte6。22.12。10d·29·279．watergasheat．com2COD85%。12COD630mg/L1650mg/LOLR5．5kgCOD/m3·d11．9kgCOD/m3·dCOD78%4d86%6d94%。HRT3．0h2．4h、7．5kgCOD/m3·d18．0kgCOD/m3·dCOD92．3%EGSB。19．6g/LMLVSS/MLSS0．64。2CODFig．2RemovalofCODduringrapidstartupperiod10dEGSB。EGSB46d4。、、。、、。2.2EGSBCOD3。COD。≤20%COD93．4%50%COD53．7%100%COD36．7%COD56．2%。。100d50%COD93．4%53．7%4050%100%COD53．7%36．7%56．2%EGSB。3CODFig．3RemovalefficiencyofCODduringacclimationperiodusingcokingwastewater5～10L/h0．6L/hOLR20～40kgCOD/m3·d3．0kgCOD/m3·d。EGSB0．6∶130∶140%～50%、20∶1100%Vup0．8m/h2．2～2．4m/h40%～50%、3．1m/h100%。0．6L/h1．2L/hOLR2．4kgCOD/m3·d5．6kgCOD/m3·d20∶1·39·．watergasheat．comEGSB27910∶1Vup3．1m/hCOD36．7%56．2%EGSB、。、。①EGSB、、②EGSBSRT、、③④、。3①22～27℃EGSB、10d。②6EGSBCOD2200mg/L、1．2L/h、HRT10h、5．6kgCOD/m3·d、10∶1、3．1m/hCOD56．2%。EGSBEGSB。1LaiPZhaoHZWangCetal．Advancedtreatmentofcokingwastewaterbycoagulationandzero-valentironprocessesJ．JHazardMater20071471/2232－239．2NingPBartHJJiangYJetal．Treatmentoforganicpollutantsincokeplantwastewaterbythemethodofultra-sonicirradiationcatalyticoxidationandactivatedsludgeJ．SepPurifTechnol2005412133－139．3．－－J．2008223198－201．4．EGSBJ．2006710118－123．5．EGSBJ．2006221562－66．6ZengAPDeckwerWD．Bioreactiontechniquesundermicroaerobicconditionsfrommolecularlevelt[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2010－09－20201111、、、、、、。。。。·49·279．watergasheat．com