IrO2RuO2Ti电极处理含氰含银电镀废水苏远波

256Vol25,No6200912ChemicalReactionEngineeringandTechnologyDec.2009:1001-7631(2009)06-0560-06:2009-04-26;:2009-12-02:(1976-),,;(1963-),,,。E-mail:[e-mail]:(3502Z20071097)IrO2-RuO2/Ti1,2,3,4　1,2,3,4　2,3,4　2,3,4　2,3,4(1.,　361005;2.,　361005;3.,　361005;4.,　361005):IrO2-RuO2/Ti,X(XRD)(SEM)X(EDS),。:IrO2-RuO2/Ti“”,IrO2,RuO2TiO2。IrO2-RuO2/Ti,,0.5V,1200Hz,50%,1.0L/min,100mL/minpH10～11,4.0h,IrO2-RuO2/Ti、PbO2/Ti,,99.66%,91.63%。:;;;:X703.1　　:A、、。、、[1～3],、[4～5],,、。2060,(DSA),。,,“”[6]。,[7～11],,。IrO2-RuO2/Ti,,,。1　1.1　1.1.1　10mm×100mm,(5%Na2CO35%Na3PO4)30min,,(2%NaF,18%HNO380%H2O)15min。,100℃20%5h,5%HNO312h;3h;450℃15min,。1.1.2　。、、、。,100℃,500℃20min,100℃10min,,、,18,500℃1h,,,IrO2-RuO2/Ti。1.1.3　LEO-1530(SEM),20kV;X(EDS);X(XRD),CuKα,40kV,40mA,10～90°。1Fig.1Set-upofpulseelectrolysisreactor1-electrolysistank;2-cathode;3-anode;4-airdistributionsandstone;5-solutiondistributiontube;6-aircompressor;7-circulationpump;8-voltagemeter;9-pulseelectricalsource;10-amperemeter1.2　1。、、。,130mm×130mm×110mm,1.5L,(10mm×100mm)(110mm×100mm),,50mm,(10mm×120mm),,,。,。1.0L,pH10～11,,100mL/min1.0L/min;,,0.5V,50%,1200Hz;,0.5h;15mg/L4.0h,。,,,,,。1.3　。-(GB7486-87)[12]。(η)(φ):η=(CAg0-CAgt)/CAg0×100%(1)φ=(CCN0-CCNt)/CCN0×100%(2),CAg0CAgtt,mg/L;CCN0CCNtt,mg/L。2　2SEMFig.2SEMimagesofoxidelayers2.1　23。2a(1000),,,,。561256.IrO2-RuO2/Ti,,,。2b(10000),“”,。,,,,[13]。,,。(3),,40.10%,24.60%,9.16%,17.61%,8.53%。3Fig.3Elementsofoxidelayers4XRDFig.4XRDpatternsofoxidelayers,XRD,4。,TiO2,IrO2RuO2,TiO2,RuO2IrO2。RuO2IrO2Ti。IrO2,Ru4+IrO2,,。。2.2　,IrO2-RuO2,5。,IrO2-RuO2,,IrO2-RuO2/Ti2h,96.17%86.13%,IrO2-RuO22h,37.12%21.55%,4h45.63%31.40%,IrO2-RuO2/Ti4h,99.66%91.63%。IrO2-RuO2。5IrO2-RuO2Fig.5EffectsofIrO2-RuO2onreclamationofsilverionanddecompositionofcyanidebypulseelectrolysis562　　　　　　　　　　　　　　　　　　　　　2009122.3　IrO2-RuO2/TiPbO2IrO2-RuO2/TiPbO2/Ti6。,IrO2-RuO2/Ti,0.5h38.01%35.15%,PbO2/Ti2.102.18;IrO2-RuO2/Ti2h(96.17%)PbO2/Ti4h(82.16%),IrO2-RuO2/Ti。IrO2-RuO2/Ti3h,91.18%,PbO2/Ti61.15%。6IrO2-RuO2/TiPbO2Fig.6ComparisonoftheperformanceofIrO2-RuO2/TiandPbO2/Tiforreclamationofsilverionanddecompositionofcyanidebypulseelectrolysis2.4　IrO2-RuO2/TiIrO2-RuO2/Ti7。,IrO2-RuO2/Ti,,IrO2-RuO2/Ti0.5h,38.01%,1.36;2h96.17%,4h;IrO2-RuO2/Ti4h,92.07%。,IrO2-RuO2/Ti。,IrO2-RuO2/Ti,,1.5h,IrO2-RuO2/Ti(82.71%)1.76,4h,IrO2-RuO2/Ti;,,4h,83.04%,IrO2-RuO2/Ti(91.63%)。7IrO2Fig.7ComparisonoftheperformanceofIrO2-RuO2/Tiandgraphiteforreclamationofsilverionanddecompositionofcyanidebypulseelectrolysis2.5　IrO2-RuO2/TiIrO2-RuO2/Ti8。,563256.IrO2-RuO2/Ti,。2h,IrO2-RuO2/Ti96.17%,77.02%。4h,IrO2-RuO2/Ti99.66%,95.01%。,,。0.5h,IrO2-RuO2/Ti35.11%,1.84;2h4h,IrO2-RuO2/Ti1.721.43。,IrO2-RuO2/Ti91.63%,64.03%。IrO2-RuO2/Ti,。8IrO2Fig.8ComparisonoftheperformanceofIrO2-RuO2/Tiandstainlesssteelforreclamationofsilverionanddecompositionofcyanidebypulseelectrolysis3　　a)IrO2-RuO2/Ti,,“”,,,,。,40.0%,24.6%,9.16%。b)IrO2-RuO2。4h,IrO2-RuO2,99.66%91.63%,IrO2-RuO2,45.63%31.40%。c),IrO2-RuO2/TiPbO2、。:1　HsuTH,ChiangCS.ActivatedSludgeTreatmentofDispersedDyeFactoryWastewater.JEnvironSciHealth,1997,32:1921～19322　,,..,2008,27(2):223～230LinHaibo,WuZhenyi,HuangWeimin,etal.DevelopmentandDirectionofElectrochemicalTechnologiesforIndustrialWastewaterTreatment.ChemicalIndustryandEngineeringProgress,2008,27(2):223～2303　WalshFC.ElectrochemicalTechnologyforEnvironmentalTreatmentandCleanEnergyConversion.PureApplChem,2001,73(12):1819～18374　BenjaminR,PhilippeS,PatriceH,etal.ApplicationofRelaxationPeriodsduringElectrodialysisofaCaseinSolution:ImpactonAnion-ExchangeMembraneFouling.JournalofMembraneScience,2007,287(1):41～505　　,,..,2002,3(3):51～55WuYan,ZhangRuobing,XuDexuan.ResearchonWastewaterTreatmentUsingPulsedHighVoltage.TechniquesandEquipmentforEnvironmentalPollutionControl,2002,3(3):51～55564　　　　　　　　　　　　　　　　　　　　　2009126　,,..:,2005.227～2327　LiXiaoyan,CuiYubong,FengYujie,etal.ReactionPathwaysandMechanismsoftheElectrochemicalDegradationofPhenolonDifferentElectrodes.WaterResearch,2005,39(10):1972～19818　AwadHS,AboGN.ElectrochemicalDegradationofAcidBlueandBasicBrownDyesonPb/PbO2ElectrodeinthePresenceofDifferentConductiveElectrolyteandEffectofVariousOperatingFactors.Chemosphere,2005,61(9):1327～13359　LidiaS,SantosbNK,RaoNN,etal.InfluenceofAnodeMaterialonElectrochemicalOxidationfortheTreatmentofTanneryWastewater.WaterResearch,2005,39(8):1601～161310　BorrasC,LaredoT,MostanyJ,etal.StudyoftheOxidationofSolutionsofp-Chlorophenolandp-NitrophenolonBi-DopedPbO2ElectrodesbyUV-VisandFT-IRInSituSpectroscopy.ElectrochimicaActa,2004,49(4):641～64811　YangLX,AllenRG,ScottK,etal.AShadyofPtRuO2CatalystsThermallyFormedonTitaniumMeshforMethanolOxidation.ElechochimicaActa,2005,50(5):1217～122312　..:,1989.311～31313　TrasattiS.PhysicalElectrochemistryofCeramicOxides.ElectrochimActa,1991,36(2):225～241ApplianceofIrO2-RuO2/TiElectrodeinPulseElectrolysisofElectroplatingWastewaterContainingCyanideandSilverSuYuanbo1,2,3,4　LiQingbiao1,2,3,4　WangYuanpeng2,3,4　WangHaitao2,3,4　HongJinqing2,3,4(1.EnvironmentalScienceResearchCenter,XiamenUniversity,Xiamen　361005,China;2.DepartmentofChemicalandBiochemicalEngineering,CollegeofC