催化湿式氧化中负载型催化剂的稳定性与应用

712Vo.l7,No.12200612TechniquesandEquipmentforEnvironmentalPollutionControlDec.2006唐文伟1曾新平2*赵建夫3顾国维3(1.,200092;2.,200092;3.,200092)CuO/Al2O3,2002h,TOC81.3%,14.9%:2201.5h,CODTOC68.8%56.5%,18.7%18.9%CuO/Al2O3X7035A10089241(2006)12013204StudyonstabilityandapplicationofloadedcatalystincatalyticwetairoxidationTangWenwei1ZengXinping2ZhaoJianfu3GuGuowei3(1.DepartmentofChemistry,TongjiUniversity,Shanghai200092;2.SchoolofLifeScienceandTechnology,TongjiUniversity,Shanghai200092;3.StateKeyLaboratoryofPollutionControlandResourceReuse,TongjiUniversity,Shanghai200092)AbstractCatalystsmusthavehighcatalyticactivityandstability.ThepreparedcatalystofCuO/Al2O3whichhadgoodcatalyticactivitywasappliedinthetreatmentofemulsificationwastewater,andresultedin813%TOCremovalafter2hoxidationat200,whichbroughtaboutimprovementof149%,comparedtononcatalyticoxidation;whileappliedinthetreatmentofdispersingbluedyeeffluen,tithadhighercatalyticactivityandstabilityandresultedin68.8%CODand56.5%TOCremovalafter15hoxidationat220,whichbroughtaboutimprovementof18.7%and18.9%,comparedtononcatalyticoxidation,respectively.KeywordsCuO/Al2O3;catalyticactivity;stability;emulsificationwastewater;dispersingbluedyeeffluent:2005-09-11;:2006-01-14:(1968~),,,,Emai:[e-mail]*,Emai:[e-mail](CWAO),,CO2H2OCWAO,,;,;,,[1]CuO/Al2O3,COD80%Fortuny[2]CuOAl2O3,COD90%,[3]pHLevec[4],pH;Miro[5]CuO/Al2O3,pH,12:,[6],CuO/Al2O3,[7]11.111Fig.1ExperimentalequipmentofCWAOFYX2a(2L),,500r/min(2)1.2,400mL,,,(1.25),,1.3COD;TOCTOC;pH:COD53570~74110mg/L,BOD5/COD0.072~0.124;:COD46710mg/L,TOC12640mg/L,pH11.071.4,,CODTOC,,:(1)COD48000mg/L;(2)20022.1:,,CuO/Al2O3:3mol/L5507h,Al2O3,[7],22TOCFig2InfluenceofquantityofcatalystonTOCremovalrate2,,25g,TOC81.3%,14.9%,[8][9],,2.22.2.1不同介质对铜溶出的影响,(5000mg/L)(COD46710mg/1337L,TOC12640mg/L,pH11.07),,5g,2.5g,3,3Fig3SituationofdissolvingCu2+atdifferentmedia,Cu2+:(1.2~1.4mg/L),,,;,,2h7.5mg/L;14.6mg/L,,[10],2.2.2乳化液废水pH的影响pH,25g,2002h,11pHTable1InfluenceofpHoncatalyticpropertypHpHCOD(%)TOC(%)Cu2+(mg/L)9.384.4688.481.327.98.204.3988.981.931.27.004.3089.682.134.2:,,Cu2+,2.2.3催化剂的重复使用,3(4)4COD(200,Cu/Al2O3)Fig.4InfluenceofrepeateduseonCODremovalrate,,,,,,2.2.4分散兰废水非均相催化氧化Cu/Al2O3,2.5g,220Po21.20MPa(25)5,35(220,Cu/Al2O3)Fig.5Effectofnonhomogenouscatalyticwetairoxidationondispersingbluedyeeffluent:Cu/Al2O3,,2201.5h,CODTOC68.8%565%,18.7%18.9%(下转第140页)1347()Q:NP=Plsincosl1sin(2)=Pl2l1(N)(10)W=NP!uP=Plsincosl1sin(2)!uP=Pl2l1!uP(W)(11)Q=Pcos+Ncos(!-)=Pcos+Ncos(∀+#+)=Pcos+Ncos(2)(N)(12)1,,NpcWcQc,2,,,,2,[1],,[1],,..,2003,4(2):96~98[2],..,2003,19(5):82~85(上接第134页),15h,13.2mg/L,2h14.6mg/L,,Cu/Al2O33(1)Cu/Al2O3,2002hTOC81.3%,,149%(2),,2201.5h,CODTOC68.8%56.5%,187%189%,[1],..,2003,25(2):27~30[2]FontunyA.,BengoaC.,FontJ.,eta.lWaterpollutionabatementbycatalyticwetairoxidationinatricklebedreactor.Cata.lToday,1999,53:107~114[3]..:,2006.12~27[4]LevecJ.,PintarA.CatalyticoxidationofaqueoussolutionoforganicA:Effectivemethodforremovaloftoxicpollutantsfromwastewater.Cata.lToday,1995,24:51~58[5]MiroC.,AlejanreA.,FortunyA.,eta.lAqueousphasecatalyticofphenolinatricklebedreaction:EffectofthepH.Wat.Res.,1999,33(4):1005~1013[6].()[].:,2000.49~51[7],,,..,2006,25(2):213~217[8],,,..,2003,23(12):22~26[9]AlejandtrA.,MedinaF.,eta.lCharacterisationofcoppercatalystsandactivityfortheoxidationofphenolaqueoussolutions.AppliedCatalysisB:Environ.,1998,16:53~67[10],,,..,2004,17(2):38~41140