FeCuC三元固定床微电解法处理酸性品红染料废水梁少晖

36920079　　　AppliedChemicalIndustryVo.l36No.9Sep.t2007:2007-05-09:(1975-),,,,。:029-82238189-3429,E-mail:[e-mail]-Cu-C梁少晖1,张美婷1,朱江2,卫兵兵1(1.,　710054;2.,　712021)　:Fe-Cu-C,pH、、Fe-Cu-C、,。,:pH4.10,0.15mL/s,Fe∶Cu∶C=1∶1∶2(),300min,96.2%。:;;-;:X13　　　:B　　　:1671-3206(2007)09-0941-03TreatmentofacidvioletreddyewastewaterbyFe-Cu-CmicroelectrolysismethodinfixedreactorLIANGShao-hui1,ZHANGMei-ting1,ZHUJiang2,WEIBing-bing1(1.HualuEngineeringTechnologyCo.,Ltd,Xi’an710054,China;2.IricoGroupCorporation,IricoChemicalMaterialsPlant,Xianyang712021,China)Abstract:ThereactionoftreatmentofacidvioletreddyewastewaterwithFe-Cu-Cmicroelectrolysismethodinafixedreactorwasinvestigated.Theexperimentalresultsshowedthatthereactionhavehigh-leveldecompositionefficiencyanddiscoloringfunction.ThedecompositionreactionswereinfluencedbypH,flowofwastewater,andthevolumeratioofFe,CuandC,reactiontime.Moreover,theoptimalexperi-mentalresultsindicatedthatpHofacidvioletreddyewastewateris4.10,flowofwastewater0.15mL/s,thevolumeratioofFe∶Cu∶Cis1∶1∶2andreactiontime300min.Undersuchconditionsthedecomposi-tionefficiencyofacidvioletreddyecouldbeattained96.2%.Keywords:dyewastewater;acidvioletred;Fe-Cu-C;microelectrolysis　　、、。、、,,。,、,。,[1-3]。,-。-“”,“CMRO”[4-5]。[6-7],、、,CODCr1000～1500mg/L,BOD5250～400mg/L,200～800,pH=10～12,BOD5/CODCr=0.2～0.27,CODCr,CODCr82.5%～89.5%,97.5%～98.7%,[8-9],。,,。1　1.1　　　;、;、,,20。721W;DELTA320pH。1.2　1。DOI:牨牥牨牰牭牳牨牤jcnkiissn牨牰牱牨牫牪牥牰牪牥牥牱牥牴牥牫牨361　-Fig.1　ExperimentalequipmentofFe-Cmicroelectrolysisreaction1.;2.-;3.;4.　　,500mL,,pH。,,。。1.3　,50,,527nm,λmax=527nm。,。。:　　Ca=k×A　　　　　　　　　　　(1)　k———,k=114.8;　Ca———,mol/L;　A———。1.4　,E,:　　E=C0-CtCt×100%　　　　　　　(2)　C0———,mol/L;　Ct———,mol/L。2　2.1　。300min,pH=4.3,Fe-C1∶2,,2。2　Fig.2　Influenceofwaterfluxonmethylvioletdegradation　　Fe-Cu-C,τ:　　τ=V×εF　　　　　　　　　　(3)　V———,mL;　ε———Fe-Cu-C;　F———,mL/s。　　(3),,,,。2,,。,。,0.15mL/s,,90%。2.2　pH,pH,pH,3。3　pHFig.3　InfluenceofpHonmethylvioletdegradationefficiency　　3,pH,。Fe-C:　　(Fe):Fe-2eFe2+　　　　　　　E0(Fe2+/Fe)=-0.44V9429:Fe-Cu-C　　(C):2H++2e2[H]H2　　　　　　　E0(H+/H2)=0.0V　　pH,,。,,H+,。,pH4.10。2.3　pH=4.10,0.25mL/s,∶=1∶1(),4。4　Fig.4　Influenceofreactiontimeonmethylvioletdegradationefficiency　　4,。,,,;,。,,,。2.4　Fe-Cu-C　　　　　,,1。1　Fe-Cu-CTable1　InfluenceofthevolumeratioofFe,CuandCinmicroelectrolysiscolumnonmethylvioletdegradationefficiencyFe-Cu-CFe∶Cu(Fe∶Cu)∶C/%0.5∶1.01.0∶1.084.0Cu1.0∶1.078.11.0∶1.01.0∶1.089.01.5∶1.01.0∶1.085.51.0∶1.00.5∶1.082.31.0∶1.02.5∶1.088.41.0∶1.02.0∶1.096.21.0∶1.01.5∶1.090.11.0∶1.00.5∶1.080.3　　1,Cu,Fe-C,Fe-Cu、Fe-Cu-C。(Fe∶Cu)　∶C1.0,Fe∶Cu1.0,。,-,,,-。,,、,、。,Fe-C,Fe-CFe∶C=1∶2,300min,96.2%。2.5　Fe-Cu-CFe-Cu-C、、、[9]。,Fe、Cu、C,,,-,—N—N—、—N—O—,。,,,COD。Cu,Fe、C,Cu,E0(Cu2+/Cu)=0.340V,,,CuFe,。,Cu,Fe、C,。,,,。,,,。Fe-C,,,。3　　　(1)Fe-C,,。Fe-Cu-C:pH=4.10,0.15mL/s,Fe∶Cu∶C=1∶1∶2(),300min,96.2%。(2)Fe-C、Cu,Fe、Cu、,,(946)943364　　　CP,,,,pH6.5～7.5,CP。,CP,CP,。:[1]　,,,.[J].,2006,25(7):15-16.[2]　,,,.[J].,2001,21(1):15-16.[3]　,,,.[J].,2001,20(5):8-21.[4]　.:CN,1886811A[P].2006-12-27.[5]　,.[M].:,2002:1-229.(937),。:[1]　.“”[J].,2005(6):28-29.[2]　,,,.[J].,2005(2):193-195.[3]　.GB/T10209.1—2001、()[S].:,2001.[4]　.GB/T10209.2—2001、[S].:,2001.[5]　,,,.[J].,2002(5):21-23.[6]　,,,.[J].:,2004(3):92-94.(943)。Fe-Cu-C,、。,Fe-Cu-C。:[1]　.[J].,2003,1(4):81-84.[2]　,,.[J].,1991,13(2):146-149.[3]　.[J].,1992,12(2):145-150.[4]　,,.[J].,1999,19(3):135-137.[5]　,,.-[J].,1997,17(6):15-17.[6]　,.[J].,2005,33(4):23-25.[7]　,.[J].,2004,19(1):5-7.[8]CanizaresP,Garcla-GomezJ,LobatoJ,eta.lElectrochem-icaloxidationofaqueouscarboxylicacidwastesusingdia-mondthin-filmelectrodes[J].IndEngChemRes,2003,42:956-962.[9]　,,.Fe/C[J].,2006,35(5):359-361.946