光催化技术对工业循环冷却水微生物灭活实验研究张国庆

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ResearchoftheinactivationeffectonmicrobesinindustrialcirculatingcoolingwatersystemutilizingphotocatalytictechnologyZhangGuoqing1,RaoZhonghao1,WuZhongjie1,ChenYipo2,PanHuageng2(1.FacultyofMaterialandEnergy,GuangdongUniversityofTechnology,Guangzhou510006,China;2.ShundeDowellTechnologyCo.,Ltd.ofFoshan,Foshan528300,China)1,1,1,2,2(1.,510006;2.,528300)[]UV/、/TiO2UV//TiO23,3,:UV//TiO299.9%,87.6%、60.4%UV/、/TiO2。,3h,UV//TiO299.9%。。1h,,。[];;;[]O644[]A[]1005-829X(2010)10-0056-04Abstract:Threephotocatalyticreactorswithdifferentconfigurations,UV/nickel-net,nickel-net/TiO2andUV/nickel-net/TiO2weredesignedandassembled.TheinactivationrateforColiweremeasuredusingthereactors.ResultsshowedthattheinactivationrateofUV/nickel-net/TiO2is99.9%,morethanthatoftheUV/nickel-net(87.6%)andnickel-net/TiO2(60.4%).ByutilizingUV/nickel-net/TiO2andtreating3h,theinactivationratesfornaturalbacterialinwatersamplesgatheredatthreedifferentlocationscouldreach99.9%.PhotocatalyticreactionsbothfornaturalbacteriaandColifollowthefirstorderkineticsmodel.Legionellawerenotdetectedinsamplesafter1hreaction.Keywords:photocatalysis;circulatingcoolingwater;Coli;Legionella[](2007Z021);(2009B030500001),、pH、,、,、,,,〔1-6〕。,〔7-8〕。,,〔9〕。,———〔10-14〕。TiO2,。。11.1(JM109);BCYE;;,(TPS)0.1%80+TPS;0.45μm;;;;、、NaCl、MgCO3、NaOH、HCl,。,。1.2(SW-CJ-2FD),3010201010IndustrialWaterTreatmentVol.30No.10Oct.,201056--2010-10,30(10);(PYX-250S-A),;(SHA-C),;(KK29E26T1),;(YXQ-SG46-280S),;/(UV-2100),;(2XZ-1),;(95-1),;pH(pHS-3C),;(FA2004N),。1.31.3.13,:(UV//TiO2)、(UV/)、(/TiO2)。1.3.2,(:、、、、、、、),3,<10%。1.3.3TiO2900mL,,100mL,,30min5mL,3。1.3.4《:》。10~100,31mL,。15mL,,37℃48h,。1.3.5。6L,,,;。22.12.1.11000mL。33h,30min,,1。1,,ln(c0/ci),ChangWei〔15〕。3。3h,UV//TiO299.9%,87.6%UV/。,/TiO260.4%,UV/,UV,。UV/。2.1.21000mL,UV//TiO23h,30min,,2。2,,,30min60.1%,2h99.9%,。。2.1.3,:57--2010-10,30(10)。1000mL,2h,,3。3,,,,。,,,TiO2、,HO·,。2.22.2.16L,UV//TiO22h,,1。1,,。:,,4.4×105mL-193.1%。2.2.26L,UV//TiO2,2、4、6h,,2。2,UV//TiO22h,。2.2.36L,UV//TiO23h,30min,。,,,0~0.5h,,0.5~2.0h,2h,2h,98.4%,3h,99.9%,。,:ln(C0/Ci)=Kt〔16〕。2.3,500mL。UV//TiO21、2、3h,。:,,pH2,10minpH7。0.1mLBCYE,。,(36±1)℃10d。2,BCYEL-BCYE,(36±l)℃24h,BCYE。BCYE,L-BCYE。:,100959085807512345lg()/%31/mL-1/%1#7.5×10499.72#9.8×10495.73#4.4×10593.12/h/104mL-1/%1#2#3#09.24.09.37.521614231899.974106171099.9968513999.99:。58--2010-10,30(10)。:BCYE(36±1)℃10d,3。3,UV//TiO21h,,[2003]225《》。3,UV//TiO2,,、,3h,99.9%,;,。,。UV//TiO21h,,。,。[][1],,.[J].,2005,5(4):49-50.[2]ZhangHuanzhen,DongChangqing,BianLei,etal.Experimentstudyoncorrosioncontrolusingcokingwastewaterascirculatingcoolingwater[J].EarthScienceFrontiers,2008,15(4):186-189.[3],.[J].,1995,11(6):24-25.[4].[J].,1998(4):11-16.[5],,,.[J].,1992,12(2):46-48.[6],,.[J].,2007,27(7):89-92.[7].()[J].,2004,20(11):21-23.[8]JyotiKK,PanditAB.Ozoneandcavitationforwaterdisinfection[J].BiochemicalEngineeringJournal,2004,18(1):9-19.[9].[J].,2007(27):42.[10]GeloverS,GomezLA,ReyesK,etal.ApracticaldemonstrationofwaterdisinfectionusingTiO2filmsandsunlight[J].WaterResearch,2006,40(17):3274-3280.[11]WistJ,SanabriaJ,DierolfC,etal.Evaluationofphotocatalyticdisinfectionofcrudewaterfordrinking-waterproduction[J].JournalofPhotochemistryandPhotobiologyA:Chemistry,2002,147(3):241-246.[12]GumyD,RinconAG,HajduR,etal.Solarphotocatalysisfordetoxificationanddisinfectionofwater:DifferenttypesofsuspendedandfixedTiO2catalystsstudy[J].SolarEnergy,2006,80(10):1376-1381.[13]MalatoS,Fernandez-Ibanez,MaldonadoMI,etal.Decontaminationanddisinfectionofwaterbysolarphotocatalysis:Recentoverviewandtrends[J].CatalysisToday,2009,47(1):1-59.[14]Fernandez-Ibanez,SichelC,Polo-lopezMI,etal.PhotocatalyticdisinfectionofnaturalwellwatercontaminatedbyFusariumsolaniusingTiO2slurryinsolarCPCphoto-reactors[J].CatalysisToday,2009,144(1/2):62-68.[15]WeiChang,LinWenyuan,ZainalZ,etal.BactericidalactivityofTiO2photocatalystinaqueousmedia:Towardasolar-assistedwaterdisinfectionsystem[J].EnvironmentalScieneeandTechnology,1994,28(5):934-938.[16],.TiO2/GAC[J].:,2005,23(4):4-7.3/h1#2#3#0+++123:“”;“+”。[](1963—),1995,,,:13632315436,E-mail:pdzgq008@126.com。[]2010-06-05(),:2011《》6-61。022-2668933026512112。59--

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