处理焦化废水微氧EGSB反应器运行特性研究翟伟

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EGSB翟伟1,董春娟2,申曙光1,李峰3,樊红辉3(1.,030024;2.,030009;3.,030024)[]30~35℃,EGSB,COD、COD。:(1)COD,,COD;(2),,COD;(3),,COD。[]EGSB;;[]X703[]A[]1005-829X(2012)10-0043-04CharacteristicofEGSBreactortreatingcokingwastewaterundermicro-aerobicconditionsZhaiWei1,DongChunjuan2,ShenShuguang1,LiFeng3,FanHonghui3(1.CollegeofChemistryandChemicalEngineering,TaiyuanUniversityofScience&Technology,Taiyuan030024,China;2.DepartmentofEnvironmentalEngineering,TaiyuanUniversity,Taiyuan030009,China;3.CollegeofEnvironmentalScienceandEngineering,TaiyuanUniversityofScience&Technology,Taiyuan030024,China)Abstract:EGSBreactorhasbeenusedfortreatingcokingwastewaterat30-35℃normaltemperature.Theinfluencesofthefactors,suchastheinfluentCODconcentration,oxygenationandliquidup-flowvelocity,etc.onitsCODremovingefficiencyhavebeeninvestigated.Theresultsshowthat:(1)AstheinfluentCODconcentrationincreases,theorganicloadinginthereactoralsoincreases,resultingintheCODremovalefficiencydroppingsignificantly;(2)Itisfoundthatincreasingtheamountofoxygenationpromotesthecommunalsynergisticmetabolismsbetweendifferentfloraingranularsludge,whichisgoodfortheCODremoval;(3)whentheliquidup-flowvelocityissuitable,thereactorhasabettermasstransfereffectbetweenthetwophasesofsludgeandwaterandcanachieveeffectiveremovaloftheCOD.Keywords:EGSBreactor;cokingwastewater;oxygenation,、、、、。,A/O,O,O,,。UASB,EGSB,、〔1-2〕;,,,。,;,,〔3-4〕。,EGSB,,,〔5〕;UASB,UASB,COD55%~60%〔6〕。,EGSB,CODCOD,EGSB。11.1EGSBEGSB18L,3210201210IndustrialWaterTreatmentVol.32No.10Oct.,20124312L,100mm,17∶1;6L,140mm。,,30~35℃。1。1EGSB1.2EGSB、,,,。,COD500~1740mg/L,pH8.0~9.2,126~401,55~80NTU,3g/L。1.3COD〔7〕;pHpHS-3C;;。,(MLSS)。22.1CODCOD:(0~18d);(19~44d);(45~53d)。1L/h,4000mL/min,(Vup)2.4m/h。COD,EGSB,2。,COD500~733mg/L,COD35%,,COD,,3d,75%。19,COD1340~1740mg/L,COD,9%。35~44d,,37%。2CODCOD45,COD,650mg/L,,62%,5d,,76%。,,(DO)COD,,DO,,〔8〕,COD。2.2CODEGSBCOD,,。,1L/h,Vup=2.4m/h,COD,3、4。3,COD,1COD34%,361%。6,8000mL/min,COD,67%74%。,15000mL/min,2,,82%,,COD62%。4,COD,4000mL/min,COD28%,8000mL/min,COD52%,15000mL/min,58%,。3、4,,DO,15000mL/min,2012-10,32(10)448000mL/min,;4000mL/min8000mL/min,COD500~733mg/L1340~1740mg/L,2d5d。3COD(500~733mg/L)4COD(1340~1740mg/L)2.3CODEGSB,Vup,,;EGSB,,,〔9〕。,,COD。8000mL/min,COD1340~1740mg/L,VupCOD,5。5,Vup2.4m/h2.9m/h,COD50%71%;3.5m/h,COD71%74%,COD,42%。Vup2.4m/h,,,;3.5m/h,,,〔10〕,Vup2.9m/h,1、2。5VupCOD122,Vup2.4m/h2.9m/h,,0.8~1.25mm2%,0.45~0.80mm24%53%;Vup2.9m/h3.5m/h,0.8~1.25mm0.45~0.80mm6%47%,0~0.45mm36%91%。,,;,,,。,、,,、、;,、/(m·h-1)2.412.93.5/(g·L-1)272316.30~0.456536910.45~0.80245360.80~1.256821.25~1.60321>1.60210/mm/%2.4m/h2.9m/h3.5m/h2012-10,32(10),:EGSB45,,〔11〕。3(1)EGSB,COD,62%~82%。(2)COD,8000mL/min,COD500~733mg/L1340~1740mg/L,82%58%。(3)Vup,,COD;VupEGSB,,,Vup2.9m/h。[][1],.[J].,2001,21(3):144-148.[2].COD[D].:,2007.[3]StephensonRJ,PatoineA,GuiotSR.Effectsofoxygenationandupflowliquidvelocityonacoupledanaerobic/aerobicreactorsys-tem[J].WaterResearch,1999,33(12):2855-2863.[4],,,.—[J].,2003,23(2):82-88.[5],.EGSB[J].,2006,26(2):220-224.[6]WangWei,HanHangjun,YuanMin,etal.Treatmentofcoalgasifi-cationwastewaterbyatwo-continuousUASBsystemwithstep-feedforCODandphenolsremoval[J].BioresourceTechnology,2011,102(9):5454-5460.[7].[M].:,2002:216-268.[8],.EGSB[J].,2010,30(8):43-47.[9]SeghezzoL,ZeemanG,vanLierJB,etal.Areview:theanaerobictreatmentofsewageinUASBandEGSBreactors[J].BioresourceTechnology,1998,65(3):175-190.[10],,.EGSB[J].,2010,26(7):54-59.[11],,.EGSB[J].,2002,20(4):3-11.———————————[](1985—),。:18329278168,E-mail:zhaiwei2005@126.com。[]2012-08-16()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!50%30%。PAC(SS),PACSS,,m(PAC)∶m(SS)=0.52PAC。(4)SSCOD,,,、。180min。(5)PAM,,。5mg/LPAM180min110min,10%。[][1]PortenkirchnerK,DraxlerJ,SomitschW,etal.Combinedwasteairandwastewatertreatmentplantforthewoodpanelindustry[J].Eng.LifeSci.,2003,3(12):465-468.[2],,,.ABR—SBR[J].,2003,4(7):56-59.[3]GuidaM,MatteiM,RoccabCD,etal.Optimizationofalum-coagula-tion/flocculationforCODandTSSremovalfromfivemunicipalwaste-water[J].Desalination,2007,211(1/2/3):113-127.[4]GhafariS,AzizHA,IsaMH,etal.Applicationofresponsesurfacemethodology(RSM)tooptimizecoagulation-flocculationtreatmentofleachateusingpoly-aluminumchloride(PAC)andalum[J].J.Hazard.Mater.,2009,163(2/3):650-656.[5]BertschPM,ParkerDR.Theenvironmentalchemistryofalumin-um[M].NewYork:LewisPublishers,1995:1-10.[6].—/MBBR—Fenton[D].:,2008.[7],,.-[J].,2006,34(3):7-8.[8],.[J].,2007,35(36):11951-11952.[9]AmudaOS,AladeA.Coagulation/flocculationprocessinthetrea-tmentofabattoirwastewater[J].Desalination,2006,196(1/2/3):22-31.———————————[](1978—),。:13770705949,E-mail:lcg9419@tom.com。[]2012-08-06()(上接第42页)2012-10,32(10)46

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