FeC微电解光催化联合预处理电镀废水的研究彭人勇

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Fe/C-,,(,266042)[]Fe/C-Cu2+。,:Fe/CCu2+,pH=3,Fe/C=1∶1,60g/L,60min;,TiO2,pH=3,TiO240mL/L,60min。,Cu2+99.98%,COD>60%。[];;[]X781.1[]A[]1005-829X(2011)12-0067-03PretreatmentofelectroplatingwastewaterbyFe/Cmicro-electrolysis-photocatalysisprocessPengRenyong,ChengBaozhen,ZhangLigang(CollegeofEnvironmentandSecurityEngineering,QingdaoUniversityofScience&Technology,Qingdao266042,China)Abstract:Fe/Cmicro-electrolysis-photocatalysisprocesshasbeenusedforpretreatingelectroplatingwastewaterwhichcontainsgreatquantityofCu2+andorganicmatter.Theexperimentalresultsshowthattheappropriateparame-tersofthepretreatmentareasfollows:theFe/Cmicro-electrolysistakestheremovalofCu2+asitsindicatorbycarry-ingontheorthogonaltext.ItsinitialpHofwastewateris3,Fe/Cmassratio1∶1,dosageofiron60g/L,reactiontime60min.Thephotocatalysistakestheremovaloforganicmatterasitsindicatorbysingle-factortest,andnano-TiO2solutioncolloidascatalyst.ItspHis3,thedosageofTiO240mL/L,timeofUVirradiation60min.TheremovalratesofCu2+removingrateintheeffluentwaterflocculated,afterthewastewaterispretreated,reaches99.98%andCODremovingrateisabove60%.Keywords:electroplatingwastewater;micro-electrolysis;photocatalysis,,,。,,,,,,,。,〔1-3〕〔4-6〕,。、,Fe/C-,。11.1,Cu2+COD,,pH10.63~11.01,2000~2500,COD27.8~28.8g/L,Cu2+656.42~700.39mg/L。1.2(1)。,10%NaOH10%HCl5min,、,,。500mL1000mL,pH[](2009ZRB019KH)3112201112IndustrialWaterTreatmentVol.31No.12Dec.,201167,HClpH;,,pH,,Cu2+COD。(2)。,-1.0mol/LTiO2〔10〕。Fe/C,100mLFe/C,pH,TiO2,20W,,COD。(3)Ca(OH)2pH8~9,20min,,Cu2+COD。1.3pHpHS-2FpH;COD;Cu2+TAS-986。22.1L9(3)4,Cu2+,pH、、Fe/C、,,,1。11,Cu2+:pHFe/C,:pH=3,60g/L,60min,Fe/C=1∶1。,Cu2+664.71mg/L27.02mg/L,95.94%。2.22.2.1,pH=5,TiO240mL/L,、,COD,1。1UVCOD1,COD,,COD,,。TiO23.2eV,≤387.5nme-h+,253.7nm,〔11〕。,COD,,h+OH-H2O·OH,20minCOD;20min,,。,TiO2Cu,,。,,60min。2.2.2TiO2pH=5,20、40、60mL/LTiO2,UV,20min1,COD,2。2,TiO240mL/LCOD。TiO2,TiO2,,TiO2,,,,,,TiO2,,TiO2,TiO240mL/L。pHFe/C/(g·L-1)/minCu2+/%121∶1403078.45221∶2506080.82322∶16012084.87431∶15012088.77531∶2603090.16632∶1406092.06741∶1606094.12841∶24012081.04942∶1503077.81K181.3887.1183.8582.14K290.3384.0182.4789.00K384.3284.9189.7284.89Tj8.953.117.256.862011-12,31(12)682TiO2COD2.2.3pHpH,40mL/LTiO2,pH,COD,3。3pHCOD3,pH,pH,Cu2+,pH≥5,Cu2+TiO2,。:pH=3,COD。2.3,Fe/CpH=3,Fe/C=1∶1,60g/L,60min;TiO2pH=3,TiO240mL/L,60min,,,Cu2+99.98%,COD60%。3(1)Cu2+,,pHCu2+,、、Fe/C,Cu2+pH=3、Fe/C=1∶1、60g/L、60min。Cu2+95.94%。(2),TiO2,:pH=3,TiO240mL/L,UV60min。,COD56%。(3)Fe/C-,,Cu2+99.98%,COD60%。[][1],,,.[J].,2009,31(5):44-47.[2]RuanXinchao,LiuMingyue,ZengQingfu.Degradationanddecolo-rizationofreactiveredX-3Baqueoussolutionbyozoneintegratedwithinternalmicro-electrolysis[J].SeparationandPurificationTechnology,2010,74(2):195-201.[3],,.——[J].,2010,30(9):43-45.[4],,,.-MAP[J].,2010,4(5):979-982.[5],,./H2O2TDA[J].,2009,29(6):41-43.[6],,./Fenton[J].,2010,30(8):93-95.[7],,,.[J].,2004,33(1):40-42.[8],,,.TiO2[J].,2009,29(10):48-51.[9]HuH,XiaoWJ,YuanJ,etal.PreparationsofTiO2filmcoatedonfoamnickelsubstratebysol-gelprocessesanditsphotocatalyticactivityfordegradationofacetaldehyde[J].JournalofEnviron-mentalScience,2007,19(1):527-533.[10],.TiO2[J].,2006,29(9):22-23.[11]WongCC,ChuW.ThedirectphotolysisandphotocatalyticdegradationofalachloratdifferentTiO2andUVsources[J].Chemosphere,2003,50(3):981-987.[](1962—),2001,,。:13969610359,E-mail:renyongpeng@qust.edu.cn。[]2011-10-16()2011-12,31(12),:Fe/C-69

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