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Fe2O3/γ-Al2O3吕树祥,张翠然,唐玲玲,田亚杰,卢明辉(,300457)[]Fe2O3/γ-Al2O3,XRD、SEMBET。Fe2O3/γ-Al2O3,、、H2O2,。70℃,2.5g/L,H2O23.7g/L,pH=8.10,90min,COD86.2%,98.6%。,0.08mg/L,。[]Fe2O3/γ-Al2O3;;[]X703.1[]A[]1005-829X(2014)07-0042-03Advancedtreatmentofpaper-makingwastewaterbyFe2O3/γ-Al2O3catalyticoxidationLüShuxiang,ZhangCuiran,TangLingling,TianYajie,LuMinghui(SchoolofMaterialsScienceandChemicalEngineering,TianjinUniversityofScienceandTechnology,Tianjin300457China)Abstract:SupportedFe2O3/γ-Al2O3catalysthasbeenpreparedbyisopyknicimpregnationmethodandcharacterizedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM)andBET.TheprocessofFe2O3/γ-Al2O3catalyticoxidationusedfortheadvancedtreatmentofpaper-makingwastewaterhasbeenstudied.Theinfluencingfactors,suchasreactiontemperature,catalystdosage,hydrogenperoxidedosage,etc.,onthedegradationeffectivenessofpaper-makingwastewaterareinvestigatedrespectively,andtheoptimizedtechnologicalconditionsfortreatingpaper-makingwastewaterbycatalyticoxidationhavebeenobtained.Whenthereactivetemperatureis70℃,massconcentrationofcatalystdosage2.5g/L,massconcentrationofhydrogenperoxidedosage3.7g/L,pH=8.10,andreactiontime90min,theCODremovingratefromthepaper-makingwastewatercanreach86.2%,chromaremovingrate98.6%above.Thecatalysthashighstability,theseparateconcentrationofFeionsis0.08mg/Landitsreactioneffectscanbeneglected.Keywords:Fe2O3/γ-Al2O3;catalyticoxidation;paper-makingwastewater。,。、〔1〕、、、、〔2〕,CODBOD。、,73%~99%BOD50%~92%COD,。,()。(·OH),,〔3-6〕。Fenton,、·OH(2.80V),〔7-11〕。Fenton,,〔8〕,pH3~5。,、,,pH,。,Fe2O3/γ-Al2O3,H2O2,,。,[](14JCZDC40600);(20110110)34720147IndustrialWaterTreatmentVol.34No.7Jul.,201442。11.1Fe(NO3)3,,;γ-Al2O3,,;30%H2O2,,;,1。1pHS-3CpH,;VIS-723G,;,。1.2,γ-Al2O3,Fe(NO3)3。,γ-Al2O3Fe(NO3)312h,60℃12h,400℃4h。10%Fe2O3/γ-Al2O3。1.3XRDX’pertPro,CoKa(λ=0.17902nm),40kV,40mA,10°~90°,0.033°。SEMJSM-6380。(BET)QuantachromeQuadrosorbSI,。1.4,,,Fe2O3/γ-Al2O3,30%,。,6min,,COD400nm。1.5COD〔12〕。。Fe3+AA-6800。22.1Fe2O3/γ-Al2O3XRD、SEM1、2。1Fe2O3/γ-Al2O3XRD(a)γ-Al2O3(b)Fe2O3/γ-Al2O32SEM1,Feα-Fe2O3γ-Al2O3。2,Fe2O3γ-Al2O3。Fe2O3,γ-Al2O3297m2/g、0.452cm3/g,109m2/g、0.233cm3/g,。Fe2O3γ-Al2O3,。2.2pH=8.10、1.5g/L、30%H2O23.7g/L,90min,,3。3,50℃,,90%。,COD,70℃;COD,,H2O2O2H2O,,。(400nm)/NTUpH0.1390.208.10406COD/(mg·L-1)2014-07,34(7),:Fe2O3/γ-Al2O3433COD2.370℃、pH=8.10、30%H2O23.7g/L,90min,,4。4COD4,,。,50%。,90%,0.5g/L,,。,COD,30%;,COD;2.5g/L,COD85.5%;,COD。,·OH,·OH,、,。2.5g/L,COD,。,Fe3+。Fe3+0.08mg/L,。2.4H2O280℃、pH=8.10、2.5g/L,90min,30%H2O2,H2O2,5。5H2O2COD5,,,90%,,45%。,,,3.7g/L,,98.6%;H2O2,。,COD;H2O23.7g/L,COD,86.2%;H2O2,COD。H2O2·OH,H2O2,H2O2·OH,H2O2。3(1)Fe2O3/γ-Al2O3,α-Fe2O3γ-Al2O3。(2)Fe2O3/γ-Al2O3,,。(下转第87页)2014-07,34(7)4441,1。11,,,。51,1600m3/d,2。6、,,、;UASB/AF,,2:UASB、、。,-;BAF,;/,。3a,《》(GB8978—1996)。[1],,.[J].,2001,19(6):9-11.[2].[J].,2004,A02:655-658.[3],,,.[M].:,2000:332-333.———————————[](1972—),E-mail:guzhenhua72@163.com。[]2014-05-05()/(·t-1),0.8kg,2.6/kg2.08,0.2kg,0,0.1kg,2.5/kg0.25,0.3kg,2.5/kg0.75,0.01kg,30/kg0.30,0.3kg,9/kg2.70,1.4kW·h,0.80/(kW·h)1.12,10,2000/(·)0.427.62COD/(mg·L-1)/%/(mg·L-1)COD/(mg·L-1)%/(mg·L-1)2100—1602089—164.910505040752.263.9941.1UASB4206010233.468.985.110076.2275.467.681.66040139.547.580.360—139.5—0.3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(3)70℃、pH=8.10、2.5g/L、H2O2(30%)3.7g/L、90min,98.6%,COD86.2%。[1]TorradesF,SaizS,JoseAntonioGH,etal.DegradationofwheatstrawblackliquorbyFentonandphoto-Fentonprocesses[J].EnvironmentalEngineeringScience,2008,25(1):92-98.[2],,,.[J].,2011,32(6):1638-1643.[3],,,.[J].,2011,30(B08):183-186.[4],.[J].,2011,30(B08):187-190.[5],,,.Fenton[J].,2012,31(2):31-34.[6],,.Fe2O3[J].:,2010,31(6):716-720.[7],,,.Fenton[J].,2012,32(7):25-28.[8],,.Fenton[J].,2010,30(11):59-62.[9]DantasTLP,MendoncaVP,JoseHJ,etal.TreatmentoftextilewastewaterbyheterogeneousFentonprocessusinganewcompositeFe2O3/carbon[J].ChemicalEngineeringJournal,2006,118(1/2):77-82.[10]MakhotkinaOA,PreisSV,ParkhomchukEV.Waterdelignificationbyadvancedoxidationprocesses:HomogeneousandheterogeneousFentonandH2O2photo-assistedreactions[J].AppliedCatalysisB:Environmental,2008,84(3/4):821-826.[11]TekbasM,YatmazHC,NihalB.Heterogeneousphoto-Fentonoxidationofreactiveazodyesolutionsusingironexchangedzeoliteasacatalyst[J].MicroporousandMesoporousMaterials,2008,115(3):594-602.[12].[M].4.:,2006:210-213.———————————[](1972—),,。:022-60601157,E-mail:lshx@tust.edu.cn。[]2014-04-18()(上接第44页)2014-07,34(7),:DNT+87
本文标题:Al2O3催化氧化深度处理造纸废水
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