IrTaSn掺杂电极对垃圾渗滤液降解的实验研究范荣桂

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Ir-Ta-Sn范荣桂,张世强,姜清风,许倩(,123000)[],。Ir-Ta-Sn、,、、pH。,;;4h,COD。pH3、24~36V、1.5~2.0cm4h,COD50%。[]Ir-Ta-Sn;;[]X703.1[]A[]1005-829X(2015)08-0078-04ExperimentalresearchonthedegradationoflandfillleachatebyIr-Ta-SndopedelectrodeFanRonggui,ZhangShiqiang,JiangQingfeng,XuQian(CollegeofEnvironmentalEngineeringandTechnology,LiaoningTechnicalUniversity,Fuxin123000,China)Abstract:Electriccatalyticoxidationtechnologyisanemergingtechnologyinthefieldofwatertreatment,whichhasgoodenvironmentalcompatibility.TheIr-Ta-Sndopingelectrodeasanodeandstainlesssteelelectrodeascath-odehavebeenusedfortreatinglandfillleachate.Theeffectsoftheplatedistance,electriccatalysisoxidationvolt-age,theinitialpHandtheelectriccatalyticoxidationtimehavebeeninvestigated.TheexperimentalresultsshowthatacidicconditionismoreadvantageousforthedegradationofCOD.Thedegradationeffectisaffectedbybothoftheplatevoltageandplatedistancetodifferentdegrees.ThedegradationofCODisnotsignificantlyaffectedwhentheelectrolysistimeislongerthanfourhours.WhentheinitialpHis3,theplatevoltage24-36V,platespacing1.5-2.0cm,andreactiontime4hr,theCODremovingratefromlandfillleachatecanreachabout50%.Keywords:Ir-Ta-Sndopingelectrode;electriccatalyticoxidation;landfillleachate,。,,〔1-2〕。,,CODmg/L,mg/L;、、、,、,,〔3〕。,Ir-Ta-Sn,。11.1Ir-Ta-Sn(),,。160mm×150mm×70mm,,1。135820158IndustrialWaterTreatmentVol.35No.8Aug.,2015781.2COD,。:pHS-3CpH,;MF-47,;DT-9205,。:、、、、(98%)、、、、,、,。22.1Ir-Ta-Sn,·OH、O3,,,CO2H2O,COD〔4〕。,。、〔5-6〕;,〔7〕;〔8〕。GuohuaChen〔9〕Ir,Ir。SbSnO2(Ti/SnO2-Sb)、,,〔10〕。Ir-Ta-Sn,。2.2,1.4L,12.52mS/cm,pH8.37,COD971.27mg/L()。、、pHCOD。(A)、(B)、pH(C)(D)43L9(34),1,2。2,pH,;:pH。122.3pHCOD,Ir-Ta-Sn,。,e-、·OH;pH,·OH。e-、·OH,Ir-Ta-Sn,COD。pH2、3、5,24V、1.0cm,1h1,CODpH,23。2pH2、3、5COD2,Ir-Ta-Sn,,COD/cm/VpH/h10.53632212476321.5104/cm/VpH/hCOD/(mg·L-1)COD/%10.53632616.9636.4820.52476797.7617.8630.51.5104949.332.26413674623.7635.785124102775.8220.12611.536792.6518.397236106761.8621.56822434454.3753.22921.572808.9916.71R11.6318.8219.6511.15CBADA3B1C1D3A3B1C1D32015-08,35(8),:Ir-Ta-Sn79,50%;3,pH,pH,,。3pH2、3、5pH2.4CODΦmΦs,。Φm,,Φm;,,·OH,·OH,;,。1.0cm,pH8.37,1.5、24、36V,1h1,COD,4。41.5、24、36VCOD,,1.5VCOD20%,24V,COD40%;36V,COD。pH,。,24~36V。(),COD。2.5COD,,24V、pH3COD,24V、pH3,1.0、1.5、2.0cm,1h1,CODpH5、6。5COD6pH,1.0、1.5、2.0cm,pH,。1.0cm,COD1.5、2.0cm。,0.5cm2015-08,35(8)80;,,,,,。1.5、2.0cm,COD,,1.5~2.0cm。2.6COD,pH2、3、5,,COD,4h;24、36V,4h,COD;1.5cm,4hCOD。Ir-Ta-Sn,4h,COD;,COD,。,,COD。(、PbO2/Ti、DSASPR),COD20%~40%〔11〕,Ir-Ta-Sn50%。Ir-Ta-Sn16.4kW·h/m3,CuO-CeO2/γ-Al2O3〔12〕;COD31.7kW·h/m3,BDD〔13〕。Ir-Ta-Sn,3,COD40%(),Ir-Ta-Sn,。3(1)Ir-Ta-Sn、,pH()COD,。(2)4h,COD;24V36V,COD。(3)1.5~2.0cmCOD。,。[1],.[J].,2014(5):30-33.[2],,,.[J].,2005(6):40-42.[3],,,.BDDDDNP[J].,2011,31(7):48-51.[4]Anglada魣,UrtiagaA,OrtizI,etal.Boron-dopeddiamondanodictreatmentoflandfillleachate:evaluationofoperatingvariablesandformationofoxidationby-products[J].WaterResearch,2011,45(2):828-838.[5],,,.SnO2[J].:,1998,37(3):287-290.[6]GuglielmiM,MenegazzoE,PaolizziM,etal.Sol-geldepositedSb-dopedtinoxidefilms[J].JournalofSol-GelScienceandTechnology,1998,13(1):679-683.[7],,,.[J].,2006,27(1):19-23.[8],,.SnTi/SnO2-Sb[J].,2012,38(1):16-19.[9]ChenGuohua,ChenXueming,YuePL.ElectrochemicalbehaviorofnovelTi/IrOx-Sb2O5-SnO2anodes[J].JournalofPhysicalChemistryB,2002,106(17):4364-4369.[10],,,.TiSn-Sb[J].,2007,25(6):760-764.[11],,,.[J].,2005,22(3):50-51.[12],,,.[J].:,2007,34(6):589-593.[13]FanRonggui,LiChun’e,BaiYongxin,etal.Electrochemicalpre-treatmentofwastewaterfromDDNPproductionusingBDDthinfilmelectrode[J].AdvancedMaterialResearch,2011,255-260:2962-2966.———————————[](1962—),,,,E-mail:fanronggui@163.com。[]2015-07-03()2015-08,35(8),:Ir-Ta-Sn81

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