废水中有机污染物的氧化处理技术冯丽梅

29　6201012JournalofLanzhouJiaotongUniversityVol.29No.6Dec.2010　　:1001-4373(2010)06-0154-04＊冯丽梅,　朱　琨,　蒋煜峰(,　730070)　:对近年来发展迅速的有机污染物的氧化技术进行了分析和对比,主要包括化学氧化法、湿式氧化法、光化学氧化法、光化学催化氧化法、超临界水氧化法、电化学氧化法和臭氧氧化法.介绍了各种氧化技术的基本原理及应用现状,分析了其特点和目前面临的主要问题,探讨了废水中有机污染物处理的发展趋势.:氧化处理;有机污染物;废水处理:X131.2　　　　　:A　　.,,、,,.、、.,30,.,.1　,,.O3、H2O2、ClO2、KMnO4K2FeO4.,Fenton(、),(Fe2+)H2O2·OH,[1]:Fe2++H2O2Fe3++·OH+OH-Fe3++H2O2Fe2++HO2·+H+HO2·+H2O2O2+H2O+·OHRH+·OHR·+H2OR·+Fe3+Fe2++R+R++O2ROO+CO2+H2O,·OHRHR·,R·CO2H2O,COD.Fenton,Fe2+H2O2,.,,,,FentonFentonH2O2[2].KangFentonCOD,160minTOC100%[3].FentonCOD,,,[4].Fenton、、,,、、,.、、.+6,.,、、、、、、,.,,,[5]..SBR,[6]:pH=9,26.9mg/L＊:2010-05-24:(1986-),,,,.6:,NH3-N235mg/L63.5mg/L,73%.、N-、N-、、、、;、、、、、、[7-9].Fe(Ⅵ)2.20V,KMnO4、[10],、f2、Qβ、、[11].,.,.,,.2　(wetairoxidation,WAO)(125～320℃)、(0.5～20MPa),(,O3、H2O2),.,;,,30～60min,,.,,、,,.(catalyticwetairoxidation,CWAO),,,,,、.,.,,,,.,,、、、[12].Cu-Fe,COD、BOD5,pH[13].,,,,、、.,.,8COD95%[14].ImamuraCeO2RuCu[15].,、、,.3　.(290～400nm),,.Chen:254nmUVO32-,120minTOC100%[16].,,,.4　.,TiO2,:UV,TiO2·OH,CO2H2O.,TiO2,TiO2、TiO2、TiO2[17-18].TiO2,.,:MnO2,COD90%.、、、、,TiO2、、,TiO2.155295　(supercriticalwateroxidation,SCWO),(:400～650℃;:2.50×107Pa).,,,,,,,,,,、,、CO2H2O,,,.,,2%,,.SCWO,、、.,,SCWO99.9%[19].,COD99.8%[20].,,;,,、,.SCWO、、、、,,SC-WO,,.6　,..,..、、,CO2H2O.,,0.04mol/L、8V、pH8.5,,90.44%[21].,(M),M,,,,.Ag(Ⅰ/Ⅱ)98%CO2[22].,.,.,:①;②;③,;④,,;⑤,“”.,、.7　O3、,O3O3、O3.,,O3/H2O2、O3/UV、O3/UV/H2O2,,,.O3/UVO3,:2[23].O3,O3,O3,O3、,O3.8　、,,、、,.·OH,1566:,,.:[1]　,,.[J]..2004,18(3):5-8.[2]　ModirshahlaN,BehajadyMA,GhangaryF.Decolori-zationandmineralizationofCIacidyellow23Fentonandphoto-Fentonprocesses[J].Dyesandpigments,2007,7(1):305-310.[3]　KangSF,LiaoCH,ChenMC.Pre-oxidationandco-agulationoftexitilewastewaterbytheFentonprocess[J].Chemosphere,2002,46(6):923-928.[4]　,.Fenton[J].,2007,33(8):38-40.[5]　,.[J].,2009,41(5):9-11.[6]　,,,.COD[J].,2005,13(2):16-18.[7]　JohnsonM.D.HomsteinB.J.KineticsandMechanismoftheFerateOxidationofHydroxylamines[J].Inorg.Chem,2003,42(21):6923-6928.[8]　SharmaV.Useofiron(Ⅵ)andiron(Ⅴ)inwaterandwastewatertreatment[J].WaterScienceTechnology,2004,49(44):69-74.[9]　JiangJ,Lloyd.B.Progressinthedevelopmentanduseofferrate(Ⅵ)saltasaoxidantandcoagulantforwaterandwastewatertreatment[J].WaterResearch,2002,36(6):1397-1408.[10]　SharmaV.Ferrateoxidationofpollutants:apremixpulseradiolysisstudy[J].RadiationPhysicsandChemistry,2002,65(4-5):349-355.[11]　,,,.[J].,2005,(12):18-22.[12]　.[J].,1998,19:901-909.[13]　.[J].,2009,3(6):1011-1014.[14]　,,.[J].,2009,35(4):89-92.[15]　ImamuraE.Wetoxidationcatalyzedbyrutheniumsupportedonceriam(Ⅳ)[J].IndEngChem,2001,27:718-721.[16]　ChenYH,ChangCY,HuangSF,etal.Decomposi-tionof2-naphthalene-sulfonateinaqueoussolutionbyozonationwithUVradiation[J].WatRes,2002,36(16):4144-4154.[17]　,,,.[J].,2007,17(2):65-67.[18]　,.TiO2/PbO2[J].,2009,29(5):57-60.[19]　,,,.[J].,2008,24(3):66-68.[20]　,,.[J].,2009,35(8):84-86.[21]　,,,.[J].,2010,36(1):52-55.[22]　JuttnerK,GallaU,SchmiederH.Electrochemicalap-proachestoenvironmentalproblemsintheprocessindustry.ElectrochimActa,2000,45(15-16):2575-2594.[23]　,,,.O3/UV[J].,2005,25(3):366-369.OxidationTechnologiesforRemovingOrganicPollutantsinWastewaterTreatmentFENGLi-mei,　ZHUKun,　JIANGYu-feng(SchoolofEnvironmental&MunicipalEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:Theoxidationtechnologiesrapidlydevelopedforremovingorganicpollutantsinwastewatertreat-mentinrecentyearsareanalyzedandcompared,whichincludethechemicaloxidation,wetairoxidation,photochemicaloxidation,photocatalyticoxidation,supercriticalwateroxidation,electrochemicaloxidationandozoneoxidation.Thepotentialdevelopmentinthisfieldisexploredwhilethecharacteristics,principlesandsomeapplicationofeachmethodinwatertreatmentforafewdecadesareintroduced.Keywords:oxidationprocess;organicpollutants;wastewatertreatment157