臭氧多相催化氧化处理微污染水中试研究

26920069ActaScientiaeCircumstantiaeVol.26,No.9Sep.,2006:(No.50578051);(863)(No.2002AA601140)SupportedbytheNationalNaturalScienceFoundationofChina(No.50578051)andHi-TechResearchandDevelopmentProgramofChina(No.2002AA601140):(1962),,;3()Biography:MAJun(1962),male,professor;3Correspondingauthor,,,.2006.[J].,26(9):1412-1419MaJ,HanBG,ZhangT,etal.2006.Pilotstudyonheterogeneouscatalyzedoxidationformicro2polluteddrinkingwatertreatment[J].ActaScientiaeCircumstantiae,26(9):1412-1419[]:1,3,1,1,1,2,21.,1500902.,300040:2006202210:2006205217:.,CODMnTOC,,;UV254;,,,.:;;;NH+42N;:025322468(2006)0921412208:X703.1:APilotstudyonheterogeneouscatalyzedoxidationformicro2polluteddrinkingwatertreatmentMAJun1,3,HANBangjun1,ZHANGTao1,CHENZhonglin1,HEWenjie2,HANHongda21.HarbinInstituteofTechnology,Harbin1500902.TianjinWaterWorksGroupCompanyLTD,Tianjin300040Received10February2006;accepted17May2006Abstract:Acomparativepilotstudyofozonationandozonecatalyticoxidationinthepresneceofanovelcatalystwasconductedforpurificationofpollutedwater.ItwasdemonstratedthatbothozonationandcatalyticozonationcouldremoveUV254tothesimilarextent.However,catalyticozonationhasobviousadvantageovertheconventionalozonationincontrollingCODMnandTOCsoastoreducethequantityoforganiccompoundstotransferintothenexttreatmentprocess.Thecatalystcouldbothstrengthenozonationtodegradesomestablemicro-organicpollutantsandconvertNH+42NtoNO-32Naswellasenhancethemasstransferrateofozoneintowater.Keywords:organicpollutants;heterogeneouscatalyzedozonation;genotoxicity;NH+42N;masstransferofozone1(Introduction)()(,2003;,2003),.(,2005),,.,,,(Andreozzietal.,1996;Legubeetal.,1999;,2003;,2002).9:,.,(,2001;Maetal.,1999;,2004a;2004b;,2003;Maetal.,1997;,2004;,2005),.2(Materialsandmethods)2.1:,:TOC4.5mgL-1,CODMn4.4mgL-1,8.6NTU,pH7.8,29,200mgL-1.,1.1Table1ThewaterqualityofeffluentfromconventionaltreatmentprocessCODMn/(mgL-1)UV254/cm-1TOC/(mgL-1)pH//(mgL-1)4.50.0784.08.0291302.30.0463.27.325903.20.0603.67.627110.CODMn3mgL-1(,2005),,(DEMEPHION)..(,2005;,2004),,.2.2316.:600mm,3180mm;2040m;60m3d-1;12min;OzoniaCFS-3A,..,.2.32.3.1(,2002);(,2001).(1)(2):=W0-W1W0100%(1)=W0-W1-W2W0100%(2),W0gh-1;W1,gh-1,W2,gh-1.([O3]/[TOC]),mgmg-1.2.3.2TOCTOC5000A;CODMn:.GC/MS:GC/MS.:HP5890/5972;HP-5.MS.30m0.25mm0.25m.:He;:1mLmin-1;:100kPa;:101;:250;:702min,5min-1200,2005min,10min-12502min.:EI;:70eV;:2400V;:45550amu;:280.3(Results)3.1CODMnUV254TOC,,.3.1.1CODMn1.,,;,,;,,CO2H2O,.,OH(,2004;,3141261CODMn(3)Fig.1TheinfluenceofozonedoseontheremovalofCODMnbycatalyticozonation2005).,,,TOC2%9%(2TOCFig.2TheinfluenceofozonedoseontheremovalofTOCbycatalyticozonation2).00.26mgmg-1,2%5%TOC,0.81mgmg-1.0.260.68mgmg-1,CODMn16%30%,CODMn10%17%,1/2.0.40.7mgmg-1,TOC.,,CODMn,.TOC(,2002).,TOC,0.81mgmg-1(TOC).,.CODMn.3.1.2,0.7mgmg-1,,.,OH1s,1071010Lmol-1s-1,100103Lmol-1s-1,,.3(=0.4mgmg-1),CODMn,.,CODMn24%30%,CODMn2.3CODMn(3)Fig.3TheinfluenceofcontacttimeontheremovalofCODMnbycatalyticozonation,UV254.UV2540.05cm-1,014mgmg-15.0min,UV25448%45%.UV254,.OH569.3kJ,.41419:,1,3.OHO3,.,CODMnTOCUV254.,,,OH.,,,,.3.2,,44Fig.4TICoforganiccompoundsineffluentbydifferenttreatmentprocesses514126GC/MS(0.6mgmg-1).4a,40,(41.22%)(2517%)(15.53%)(3.3%),(2.1%)(1.3%)(DEMEPHION,1%)(2.5%).4b,4031,17.9%(),(53132%)(22.38%)(5158%)(516%).4c,25,40%,(83.3%)(6.9%)(218%).,2,,(2).2Table2Theremovalofrefractorymicropollutantsbyozonationandcatalyticozonationprocess03643687333400797533314353677261364581.8%566134560.56%0654709333002270715831955205-40.7%0100%878528431582378-259%0100%17267053656700762%41157998%66082600100%0100%6972143277016631-10.5%1008089985.5%:333.2.,(,2005),EPA.(,2003).85.5%,(Demephion),98%60.56%,,.,10.5%.,,,.,(,2001),.,,(),.,,TOC/(,2004;,2002).,SUVA2.54.6Lmg-1m-1,,,,TOC,()259%6.2%40.7%,27%.,,.61419:,,.,2.,,.,,.,.3.3,(,2005).0.1mgL-1.,,10,5.5Fig.5TheremovalofNH+42Nbyozonationandcatalyticozonation,.,,O32.34.3mgL-1,-50%56%,32.9%.2.,pHpKa(pKa9.3),,,20Lmol-1s-1,,.,OHNH+49.7107Lmol-1s-1,O3NH+44.8106,(Langlaisetal.,1991;Kuoetal.,1997).,2,OHO3NO-23.7105Lmol-1s-16109Lmol-1s-1,,.,15%,6%.,,,.3.4,,.3.4.1,6(0.3NTU).6Fig.6Theozonemasstransferrateofozonationandcatalyticozonation2.310.9gh-1,85%91%,()2%.,,0.10.3gh-1.,714126,0.10.3gh-1,.3.4.2,.7(0.3NTU).7Fig.7Theozoneutilizationrateofozonationandcatalyticozonation,.,()0.10.2mgL-1,87%90%,81%85%.,,,().4(Conclusions)1)CODMnTOC.(0.7mgmg-1),OH,.2)O3,,..3)O3OH,UV254.4)2.,.,.5),,,.6),,.7),,.:.:(1962),,..,,,.,.References:AndreozziR,CaprioV,InsolaA,etal.1996.Theuseofmanganesedioxideasaheterogeneouscatalystforoxalicacidozonationinaqueoussolution[J].ApplCatalA2Gen,138:7581CaiGQ,MaJ.2001.DegradationofAtrazinebyCatalyzedOzonationinWater[J].ChinaWater&Wastewater,17(9):7274(inChinese)KuoCH,YuanF,HillDO.1997.KineticofOxidationofAmmoniainsolutionsContainingOzoneWithorWithoutHydrogenperoxide[J].Industrial&EngineeringChemistryReseach,36(10):4108411381419:LanglaisB,DavidA,ReckhowR,etal.1991.OzoneinWaterTreatment:ApplicationandEngineering[M].LewissPublishersLegubeB,KarpelN,LeinterV.1999.Catalyticozonation:Apromisingadvancedoxidationtechnologyforwatertreatment[