电去离子技术的应用与研究进展付林

付　林,王建友(南开大学环境科学与工程学院,天津300071):(EDI),EDI,,EDI,、、、。,EDI、EDI、EDI。EDI。:;;;:TQ028.8　:A　:0253-4320(2008)07-0016-06RecentresearchprogressinelectrodeionizationprocessanditsapplicationFULin,WANGJian-you(CollegeofEnvironmentalScienceandEngineering,NankaiUniversity,Tianjin300071,China)Abstract:Inthispaper,thebasicprincipleofEDIprocessisintroduced.Besidesitsapplicationintheconventionalpurewaterpreparation,thenewlydevelopedapplicationfields,includingtheremovalofdiluteheavymetalionsfromwastewater,separationandpurificationofbio/chem-products,ionexchangeresinelectroregeneration,anddenitrationofdrinkingwater,arediscussed.Inaddition,theEDImoduleandsystemdesign,scalingprevention,EDIintegratedwithotherseparationmethods,andthemasstransfermechanisminEDIprocessaresummarized.Furthermore,thedevelopmentoftheEDItechnologyisprospected.Keywords:electrodeionization(EDI);membranefiltration;watertreatment;desalination　:2008-02-25　:(“863”)(2007AA06Z330);(06YFJMJC04800);(2006ZB0698)　:(1981-),,;(1972-),,,,,,022-66229536,[e-mail]。　　(EDI)2080,,,,。EDI、、,。1987Millipore[1]EDI(IonpureCDI),EDI、,2000,EDI,、、、。,EDI,、、、,。,EDI、EDI、EDI。。1　EDI1,、,、,。,,,。,EDI2:,,,;,、,H+OH-“”·16·July2008现代化工287ModernChemicalIndustry20087DOI:10.16606/j.cnki.issn0253-4320.2008.07.018H+OH-,。○—;★—;C—;A—图1　EDI工作的基本原理EDINa+、Ca2+、Mg2+、Cl-、SO2-4,CO2、、、,。:EDIOH-H+,,。,EDI。EDI,,;,,,,,EDI。2　2.1　。,,,;,,,,,。2060,。。,、、。,(MF)、(UF)、(NF)、(RO)、(ED)、(EDI),RO/EDI。,(GE)、(Siemens)、(Dow),EDI,EDI。GE85%RO/EDI。Ionpure1991EDI,570;20054,Ionpure1500t/hEDI。GE(E-CELL)2090EDI,2002,EDI8500t/h。Ioncis135t/h,“RO/RO/EDI”,1000,EDI。2006,,EDI。,EDI,,EDI,EDI、、,。,EDI15000m3/h,10000m3/h,EDI。2.2　,。、,mg/L,。,EDI,、。,EDI[2]。1971,[3]EDEDI。,1000～1200mg/L25mg/L,β1/100～1/50,,。Basta[4]EDIPb2+(10mg/L)Pb2+,95%。Semmens[5]EDICu2+50mg/L,Cu2+4000mg/L,。Yeon[6]·17·20087:EDI,Co2+97%。Spoor[7]EDINi2+,3。,5mg/LNi2+EDI0.2mg/L。EDI,。、,;,,EDI、。2.3　EDI,。,EDI,2:,;,,。Elleuch[8]EDI2,5h,Mg2+、Cr3+、Cd2+、Zn2+30%,。Yu[9]EDI30%,100。,65%,20%,。Widiasa[10]EDI,。,50A/m2、1000mg/L,24h,30mg/(s·m2),。Berrocal[11]EDI,,,,6.7%,0.7L/min35min,91.76%,6.39%。Arora[12-13]、,EDI,EDI,RW-EDI,,、,。2.4　[14]IonpureEDI,、、。,,EDI,。,EDI[15-16]。Spiegel[17],EDINH+4,,EDI200mg/L,1mg/L。Laktionov[18]。[19]ElectropureEDI。,EDI208.3mg/L0.072mg/L。Meyer[20]EDINO-3,EDINO-3,。Danielsson[21]EDI105mg/LNO-3,NO-320mg/L,。,、,。,。,、EDI,。3　3.1　EDI2。,,,。EDI。3mm,8～10mm。,EDI,,。EDI,EDI2090,·18·现代化工287,。EDIROUF,,Christ[22],:,,,,,。EDI,EDI,,。,SWEDI,SWEDI,5MΨ·cm,1MΨ·cm,。EDI。IPHolding[23],,,,。,,,,。,,EDI。IonpureVNXMXEDI,RO,,EDI,,,2,(TPE)O,O。,,EDI。3.2　EDI,,,。Akanobu[24]EDI,,,。[25],EDI。,2.5mol/kg。Yeon[26]、3,,(IET),EDI,IRN77EDI。,IET,,60%,3。Filter[27],ⅡEDI,,EDI。,、。,,。,EDI。3.3　EDI,1.0mg/L(CaCO3),0.1mg/L,CO25.0mg/L。,、,EDI,EDI。,Langelier(LSI),。,EDI。[28],(Ca2+、Mg2+)(CO2-3、OH-),,EDI;[29],,。、,,、,。Aquatech[30],EDI:,,,。,。,(EDR)·19·20087:(EDIR)[31-32],,。EDI,,,EDI。、,EDI、、EDI,。3.4　EDI,EDI。White[33]UV-EDI-UF,180～190nm,20s,,UF。[34](ED-EDI),、EDI,,ED-EDIRO-EDI。[35](UF-EDI),UF-EDIEDEDI,580～700μS/cm,,99%,,UF-EDI、、,、。,EDI,EDI。3.5　EDIEDI2050,,EDI,。,Glueckauf[36]FickNaClEDI。,,(FDC)。Ganzi[1],,2～3,。。Spoor[37]EDINi2+,,,,3:①;②;③。。,。Isabelle[38]EDICu2+,。,Cu2+,、。Verbeek[39]EDI。,,、,。,,。,、EDI,、、,FDC。EDI。,EDI,。,EDI、、、,、、,。EDI。,,,EDI。4　EDI、,。EDI,,。,EDI、、。,EDI·20·现代化工287,。、EDI。,EDI,。EDI,,,、CO2、,,,,EDI。,EDI。[1]GanziGC,EgozyY,GiuffridaAJ.Highpuritywaterbyelectrodeion-ization:Performanceoftheionpurecontinuousdeionizationsystems[J].UltrapureWater,1987,4(3):43-50.[2]WaitersWR,WeiserDW,MarekLJ.Concentrationofradioactiveaqueouswaters[J].IndustrialEngineeringChemistry,1955,47(1):61-67.[3]SungS.Recyclingofcopperfrommetalfinishingwastewatersusingelec-trodialysisionexchange[D].Conecticut:UniversityofConnecticut,1997.[4]BastaK,AlianeA,LounisA,etal.ElectroextractionofPb2+ionsfromdilutedsolutionsbyaprocesscombiningion-exchangetextilesandmem-branes[J].Desalination,1998(120):175-184.[5]SemmensMJ,DillonCD,RileyC.Anevaluationofcontinuouselec-trodeionizationasanin-lineprocessforplatingrinsewaterrecovery[J].EnvironmentalProgress,2001,20(4):251-260.[6]YeonKH,MoonSH.Astudyonremovalofcobaltfromaprimarycoolantbycontinuouselectrodeionizationwithvariousconductingspac-ers[J].SeprationScienceandTechnology,2003,38(10):2347-2371.[7]SpoorPB,GrabovskaL,KoeneL,etal.Pilotscaledeionisationofagalvanicnickelsolutionusingahybridionexchange/electrodialysissys-tem[J].ChemicalEngineeringJournal,2002,89:193-202.[8]ElleuchMBC,AmorMB,PourcellyG.Phosphoricacidpurificationbyamembraneprocess:Electrodeionizationonion-exchangetextiles[J].SeparationandPurificationTechnology,2006,51:285-290.[9]YuP,ZhuZ,LuoY,etal.Purificationofcaprolactambymeansofanelectrodeionizationtechnique[J].Desalination,2005,174:231-235.[10]WidiasaIN,SutrisnaPD,WentenIG.Performanceofanovelelec-trodeionizationtechniqueduringcitricacidrecovery[J].SeparationandPurificationTechnology,2004,39:89-97.[11]BarrocalR,ChaveronM.Demineralizationofsweetwheybyelec-trodeionization:US,5980961[P].1999-11-09.[12]AroraMB,HestekinJA,SnyderSW,etal.Theseparativebioreactor:Acontinuousseparationprocessforthesimultaneousproductionanddi-rect