臭氧高级氧化技术处理印染废水胡俊生

200907254　()JournalofShenyangJianzhuUniversity(NaturalScience)　Jul.　2009Vol.25,No.4　　:2008-03-26:(2008-K7-25):(1968—),,,.:1671-2021(2009)04-0747-06胡俊生1,任雪冬2,郝苓汀1,邹文基1,刘　键3(1.,110168;　2.,110015;3.,110031)　:研究臭氧氧化技术处理印染废水的效果,并探讨加入H2O2和MnOx-GAC催化剂对臭氧氧化处理印染废水效果的影响.依据臭氧高级氧化的机理,通过静态试验,分别考察了在印染厂二级废水臭氧氧化处理过程中,控制不同的H2O2和O3物质的量的比和MnOx-GAC催化剂投加量对印染废水的CODCr、色度和UV254去除率的影响.在试验废水循环流量为15L/h,O3投加量为5.3mg/(L·min)的条件下,适宜的H2O2和O3物质的量比为0.8,臭氧氧化30min时,废水的CODCr、色度和UV254去除率分别为42.3%、94.0%和64.7%;此条件下废水中MnOx-GAC催化剂的经济投加量为24.6g/L,臭氧氧化30min废水的CODCr、色度和UV254的去除率分别为59.5%、92.2%和76.7%.结论O3高级氧化能够有效降解印染废水,在臭氧反应体系中投加H2O2或MnOx-GAC催化剂可以明显提高降解速率,缩短处理时间,降低O3耗量.:;;;:X703　　　:A　　　0　　,,、.,,[1-13].,、、,(·OH),(2.80V)(2.87V),[4],,.·OH108～1010(mol/L)-1s-1[4-5],、、,CO2、H2O,[6-8].,,COD,,,,[11-12].,O3/H2O2O3/MnOx-GAC,O3.1　O3/H2O2O3H2O2,O3H2O2.O3H2O2748　　()25O3(1.7)[13-14],O3·OH,.·OHO3H2O2,CODCr[11].LanglaisO3OH-HO-2[15].O3+OH-※HO-2+O2H2O2,HO-2:H2O2HO-2+H+HO-2·OH,·OH,:O3+HO-2※HO2·+O-3HO2·※H++O-2·O-2·+O3※O2+O-3·O-3·+H+※O2+·OH·OH+O3※HO2·+O2·OH+HO-2※HO2·+OH-·OH+H2O2※HO2·+H2O·OH+HO2·※H2O+O2:H2O2OH-+H+,·OHO3:P()+·OH※()P()+O3※()Glaze[5],O3pHH2O2·OH,·OH.pH,,pH7,O3;,,.H2O2·OH[15-16].O3/H2O2,·OH,H2O2O3,H2O2·OH,[2,17].,O3/H2O2UV,,.2070O3/H2O2,80O3/H2O2[17].2　　2.1　,1.1　CODCr/(mg·L-1)286UV2543.35/100pH8.10　　O3/H2O2,·OH,,,O3[17].pH.2.2　300g3L10kg/m312h,,120℃6h,(15℃/min)450℃,4h.MnOx-GAC.2.3　1.(0.1m,1.8m),1.1m;(XFZ-5,),.15L/h,O3,5.3mg/(L·min),H2O2()H2O2/O3,25:749　　30min,5min.1　2.4　O3,O3[18],H2O2[19].pHpH(pHS-3C,),CODCr[20],UV254[20],[20].　　H2O2O3(H/O)H/O=H2O2O3,(1)ηη=1-cc0×100%,(2):c0CODCr(、UV254),cCODCr(、UV254).3　3.1　H2O2O3,H/O0、0.4、0.6、0.81.2,2、34.2、3、4,,H2O2,CODCr、UV254.O3,5minCODCr、UV2549.0%、38.9%18.5%,30minCODCr、UV25437.5%、82.2%57.5%.H2O2O3,H/O,CODCr、UV254,H/O=0.8,30min,CODCr、750　　()25UV254H2O24.8%、11.8%7.2%;H/O0.8,H/O,CODCr、UV254.,H2O2.H2O2O3·OH,·OH,·OH,,O3/H2O2;O3,,O3,.H2O2,H/O0.8,pH,O3,H2O2·OH,COD.O3/H2O2,·OH[5]H2O2+2O3※2·OH+3O2,H/O0.5,,H2O2/O3[21],.H/O0.8,30minCODCr、UV25442.3%、94.0%64.7%.H/O0.8,H2O2,H/O0.8,,[2,13,16-17,21].3.2　,,O3[9-10,15].MnOx-GAC,O3.O38.2g/L、16.4g/L、24.6g/L32.8g/LMnOx-GAC,5、67.　　,MnOx-GAC.MnOx-GAC,CODCr、UV254,MnOx-GAC8.2g/L、16.4g/L、24.6g/L32.8g/L,30min,CODCr10.4%、15.5%、22.0%24.6%,5.8%、5.8%、10.0%1.9%,UV25425:751　　11.9%、16.8%、19.2%21.1%.　　O3MnOx-GAC,MnOx-GACO3·OH,·OH,;,O3·OH.,,,,CODCr、UV254,24.6g/L,CODCrUV254,.,,.24.6g/L,30minCODCr、UV25459.5%、92.2%76.7%.4　　(1)O3/H2O2O3/MnOx-GAC·OH,,O3,.(2),H/O0.8,30minCODCr、UV25442.3%、94.0%64.7%.(3),24.6g/L,30minCODCr、UV25459.5%、92.2%76.7%.:[1]　CastilloLA,SilletA,RoussyJ,etal.Treatmentofhighorganic-loadedeffluentsrivera[J].WaterSci-enceandTechnology,2000,38(11):115-118.[2]　,,,.UV/H2O2[J].:,2007,23(4):639-642.[3]　,,,.[J].:,2007,23(5):822-825.[4]　HoigneJ.Chemistryofaqueousozoneandtransfor-mationpollutantsbyozonationandadvancedoxida-tionprocesses[C]//HrubecJ.TheHandbookofEn-vironmentalChemistry.Berlin:SpringerVerlag,1998:83-141.[5]　GlazeWH,KangJW.Advancedoxidationproces-sesdescriptionofakineticmodelfortheoxidationofhazardousmaterialsinaqueousmediawithozoneandhydrogenperoxideinasemi-batchreactor[J].Ind.Eng.Chem.Res.,1989,28(8):1573-1580.[6]　LegriniO,OliverosE,BraunAM.Photochemicalprocessesfortreatment[J].Chem.Rev.,1993,93(2):671-698.[7]　OlivieroL,BarbierJ,DuprezD.Wetairoxidationofnitrogen-containingorganiccompoundsandammo-niainaqueousmedia[J].AppliedCatalysisB:Envi-ronmental,2003,40:163-184.[8]　ZeppRG,FaustBC,HolgenJ.Hydroxylradicalformationinaqueousreactions(pH3-8)ofIron(II)withhydrogenperoxide:thephoto-Fentonreaction[J].Environ.Sci.Technol,1992,26(3):313-319.[9]　TarkovskayaIA.Metal-substitutedcarboncatalystsforpurificationandanalysisofgroundwaterandwastewater[J].KhimiyaiTekhnologiyaVody,1997,19(2):143-149.[10]　,.[J].,2000,19(8):396-398.[11]　,.[J].,2005,24(4):25-27.[12]　,.[M].:,2001.[13]　,.[J].,2000,19(12):568-571.[14]　AetiaEM,ReaganKM,LangJS,etal.Advancedoxidationprocessesfortreatinggroundwatercontami-natedwithTCEandPCE.Pilotscaleevaluations[J].JournalAWWA,1998,80(5):64-72.[15]　,,.[J].,2001(1):24-26,29.[16]　,,.[J].,2001,29(3):99-102.[17]　,,,.·OH[J].,2001,27(12):16-20.[18]　BaderH,HoigenJ.Determinationofozoneinwaterbytheindigomethod[J].WaterRes.,1981,15(4):752　　()25449-456.[19]　SellersRM.Spectrophotometricdeterminationofhydrogenperoxideusingpotassiumtitanium(IV)Ox-alate[J].TheAnalyst,1980,150:950-954.[20]　《》.[M].4.:,2002.[21]　,.O3/H2O2[J].,2002,23(5):67-71.TheTreatmentofDyeingWastewaterwithAdvancedOxidationTechnologyofOzonizationHUJunsheng1,RENXuedong2,HAOLingting1,ZOUWenji1,LIUJian3(1.SchoolofMunicipalEnvironmentalEngineering,ShenyangJianzhuUniversity,ShenyangChina,110168;　2.LiaoningProvinceAcademyofAnalyticScience,ShenyangChina,110015;　3.ChinaPetroleumPipelineEngineeringCorporationNortheastBranch,ShenyangChina,110031)Abstract:Inthispaper,theadvancedoxidationprocessesofozonizationtechniquewasusedinthetreatmentofthedyeingwastewater.TheefficiencyofthedosageofH2O2orcatalystMnOx-GACforthetreatmentofthedyeingwastewaterofozonizationwasinvestigated.Accordingtothemechanismofozonizationoxida-tion,withvariedmolarratioofH2O2