电去离子技术处理电镀含铜废水冯霄

。[1-2]。、[3]。。、。EDIH+OH-[4]、。EDI[5-11]。、。11.151。、、、38.8cm214mm7mm、。。。CuSO4·5H2O。1.2、、。1000mL500mL。20、30、40V。50mg·L-13L·h-1。5mL11221.4500112310027。。Na2SO4。5～1499.5%0.25mg·L-1。EDITQ028.8X781.1A1000-3770(2011)07-0096[e-mail]
 1Fig.1Flowchartofexperimentalprocess37720117TECHNOLOGYOFWATERTREATMENTVol.37No.7Jul.,201196DOI:10.16796/j.cnki.1000-3770.2011.07.026pH。。12Re[12]Em。Re=ρi-ρfρi×100%。1ρiCu2+ρfCu2+。Em=ρcρi。2ρcCu2+。22.1230VCu2+。28hCu2+。0.05g·L-1Na2SO4400mg·L-1。Cu2+0.25mg·L-10.06mg·L-199.50%99.88%。Na2SO4H+H+Cu2+。Na2SO4Na2SO4H+。2.230.05g·L-1Na2SO4Cu2+。3Cu2+。20V8hCu2+246mg·L-140V707mg·L-1。Cu2+0.19、0.06、0.02mg·L-199.62%～99.96%。。。2.3QcKsp。0123456781234567
/hpH4pHFig.4pHvalueoftheconcentratedsolutionatdifferentelectrodesolution012345678-50050100150200250300350400450
(Cu)/mgL
/h2Fig.2Copperconcentrationoftheconcentratedsolutionatdifferentelectrodesolution0123456780100200300400500600700800
(Cu)/mgL
/h3Fig.3Copperconcentrationoftheconcentratedsolutionatdifferentappliedvoltage0123456781234567pH
/h5pHFig.5pHvalueoftheconcentratedsolutionatdifferentappliedvoltage97Cu(OH)218～25℃-lgKsp=19.66。4、52、3pH。24、35Cu2+OH--lgQc1。1-lgQc-lgKspQcKsp。EDI344H2O+4e→2H2+4OH-32H2O-4e→O2+4H+。4Cu2+。H+Cu2+。SO42-OH-SO42-。Cu2+、SO42-、Na+、H+OH-5H+OH-H+OH-。Cu2+OH-Cu(OH)2。3。Na2SO4。EDIpH3Cu(OH)2。。Cu2+5～1499.5%Cu2+0.25mg·L-120109、、GB25467－2010。[1]JüttnerK,GallaU,SchmiederH.Electrochemicalapproachestoenvironmentalproblemsintheprocessindustry[J].ElectrochimActa,2000,45(15-16):2575-2594.[2]JanssenLJJ,KoeneL.Theroleofelectrochemistryandelectro-chemicaltechnologyinenvironmentalprotection[J].ChemEngJ.,2002,85(2-3):137-146.[3],.[M].:,2000.[4]MonzieI,MuhrL,LapicqueF,etal.Masstransferinvestigationsinelectrodeionizationprocessesusingthemicrocolumntechnique[J].ChemEngSci.,2005,60(5):1389-1399.[5]GrebenyukVD,ChebotarevaRD,LinkovNA,etal.Electromem-braneextractionofZnfromNa-containingsolutionsusinghybridelectrodialysis-ionexchangemethod[J].Desalination,1998,115(3):255-263.[6]SemmensMJ,DillonCD,RileyC.Anevaluationofcontinuouselectrodeionizationasanin-lineprocessforplatingrinsewaterrecovery[J].EnvironProc.,2001,20(4):251-260.[7]SpoorPB,GrabovskaL,KoeneL,etal.Pilotscaledeionisationofagalvanicnickelsolutionusingahybridion-exchange/electrodialysissystem[J].ChemEngJ.,2002,89(1-3):193-202.[8]SpoorPB,KoeneL,TERVeenWR,etal.Continuousdeionizationofadilutenickelsolution[J].ChemEngJ.,2002,85(2-3):127-135.[9]SpoorPB,KoeneL,JanssenLJJ.Potentialandconcentrationgradientsinahybridion-exchange/electrodialysiscell[J].JApplElectrochem.,2002,32(4):369-377.[10]MahmoudA,MuhrL,VasilukS,etal.Investigationoftransportphenomenainahybridionexchange-electrodialysissystemfortheremovalofcopperions[J].JApplElectrochem.,2003,33(10):875-884.[11]DzyazkoYS,BelyakovVN.Purificationofadilutednickelsolutioncontainingnickelbyaprocesscombiningionexchangeandelectrodialysis[J].Desalination,2004,162(1-3):179-189.[12]MarderL,BernardesAM,FerreiraJZ.Cadmiumelectroplatingwastewatertreatmentusingalaboratory-scaleelectrodialysissystem[J].SepPurifTechnol.,2004,37(3):247-255.1Cu2+OH--lgQcTab.1-lgQcofCu2+andOH-duringwaterpurification/h/V20304012345678--23.0723.3423.5623.7523.9524.1225.6226.1426.5726.5626.6626.6926.6826.6225.3426.4926.1826.2826.3326.3326.3326.3725.6226.1426.5726.5626.6626.6926.6826.6226.8127.0927.1727.2027.3127.2327.1427.03Na2SO4122377982.3BAF3d3d。。3、BAF16mg·L-1、TNCOD。TPTP0.5mg·L-116mg·L-118mg·L-1。。[1],,,.[J].,2005,31(8):14-18．[2],.[M].:,2005．PHOSPHORUSREMOVALBYBIOLOGICALAERATEDFILTERTHROUGHTHREECHEMICALMETHODSLiXin1,MaYingying1,DongWenyi2（1.SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China2.ShenzhenGraduateSchool;HarbinInstituteofTechnology,Shenzhen518055,China）Abstract:Two-stagebiologicalaeratedfilterprocesshadabetterremovaloforganicmatterandnitrogen,butphosphorusremovalisnoteffective,chemicallyenhancedphosphorusremovalmethodisoftenadoptedtoachievethestandards.Forthis,thepaperstudiedthepre-dosing,synchronization,post-dosing(FeCl3)chemicallyenhancedtheeffectofBAFforphosphorusremoval.Theresultsshowedthat:thebestwaspre-dosing,synchronizationwasbetterthanpost-dosing,butpre-dosingandpost-dosingneededsedimentationtank,sosynchronizationwasalsoagoodwaytomeetTPeffluentstandards.Keywords：chemicallyenhanced;BAF;phosphorousremoval4CODFig.4TheeffectofCODremovalbychemicalenhanced6810121416182080828486889092949698100
% mgLTREATMENTOFELECTROPLATINGWASTEWATERCONTAININGCOPPERIONSBYEDIPROCESSFengXiao1,LiuYuzhong1,ChenXuefen2,WuZucheng2(1.DepartmentofEnvironmentalEngineering,NorthChinaUniversityofWaterResourcesandElectricPower,Zhengzhou450011,China;2.DepartmentofEnvironmentalEngineering,ZhejiangUniversity,Hangzhou310027,China)Abstract:AnimprovedEDImembranestackwasadoptedtotreatelectroplatingwastewatercontainingcopperions,andeffectsofelectrodesolutionaswellasappliedvoltageonremova