MEUF去除废水中重金属和有机物及其浓缩液的处理李雪

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RemovalofheavymetalsandorganicpollutantsbyMEUFandthetreatmentofitsconcentratedsolutionLiXue,ZengGuangming,HuangJinhui,LuoFang,ZhouChunfei,NiuJing(CollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China)MEUF,,,,,(,410082)[](MEUF)。MEUF、、,MEUF,MEUF,,。[];;;[]TK228[]A[]1005-829X(2010)10-0005-05Abstract:Micellar-enhancedultrafiltration(MEUF)isanewtechnologycombiningsurfactantwithultrafiltrationfortreatingthewastewatercontainingheavymetalsororganicpollutants.Itsprinciple,surfactantselection,influentialfactorsaffectingtreatmentefficiencyareintroducedindetail.Atthesametime,aimingatexistingproblemsofthetreatmentofconcentratedsolutionandtherecoveryofsurfactantarealsointroducedindetail.ThenewestresearchachievementsofMEUFapplicationaresummarized.Furthermore,theexistingproblemsanddevelopingforegroundareanalyzed.ItspracticeshowsthatMEUFwillbecomeapromisingtechnologyforremovingheavymetalsoror-ganicpollutant.Keywords:micellar-enhancedultrafiltration;surfactant;heavymetalions;organicpollutants,,,。(MEUF)、〔1〕。,MEUF,,、、,、,。[18],,.SCL-1[J].,2004,32(3):65-67.[19],,.[J].:,2005,31(3):324-327.[20],,.[J].,2000,7(1):29-32.[21],.[J].,2002,30(7):53-55.[22],,,.[J].,2003,20(1):13-16.[23],,,.SC[J].:,2008,23(3):65-68.[24],.[J].,1997,14(3):243-247.[](1985—),2010(),。:13963369637,E-mail:lwei1985@163.com。[]2010-04-27()[](50608028);(IRT0719)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!3010201010IndustrialWaterTreatmentVol.30No.10Oct.,20105--2010-10,30(10)1MEUF(SAA),(CMC),SAA,,,。CMC,,-。50~150SAA,,0.005~0.01μm。,,,SAA,SAA。,。,SAA,;。,,,。22.1MEUF2.1.1MEUF,Cd2+、Zn2+、Pb2+、Mn2+、Ni2+、Cu2+、Cr3+、CrO42-、Fe(CN)63-、Co2+、Fe3+、Sr2+、Au3+、Cs+〔2-19〕,,Ni2+Zn2+,Cd2+Cr3+,Cd2+Pb2+,Fe(CN)63-CrO42-,Cu2+、Cd2+、Ni2+Zn2+〔3,8,13,18〕;R.S.Juang〔7〕(SDS)Zn2+Sr2+,50mg/L,5,Zn2+Sr2+87.5%97.0%;,,Zn2+98.0%,Sr2+99.9%。MEUF,:MEUFPd2+、Pt6+、Zn2+、Cu2+、Fe2+Au3+,(PONPE)Au3+(AuCl4-),〔17〕,。2.1.2:SDS〔2〕、(CTAB)〔14〕、(DCA)、(TCA)、2-(2-)-3-(DCMA-3Na)〔18〕、(TTAB)〔19〕、(CPC)〔14〕、(ODA)〔15〕、PONPE〔17〕。,CMC,,,。,,。ChiwangLi〔12〕SDSTritonX-100Cu2+,,Tri-tonX-100SDSCMC,SDS,Cu2+,SDS9mmol/L,Cu2+95%,3mmol/LTritonx-100,Cu2+100%。YaoyaoFang〔20〕Brij35+SDSCd2+,SDS3mmol/L,n(Brij35)∶n(SDS)=0.4,Cd2+0.445mmol/L,Cd2+96%,SDS96%Cd2+,SDS6mmol/L;TritonX-100Brij35,n(TritonX-100)∶n(SDS)=0.7,Cd2+96%。2.2MEUF2.2.1MEUF、、、、〔21〕。。,,。,,,。。(),,,,,〔22〕。2.2.2:CPC、(OMC)、--(PEO-PPO-PEO)、(APG)、(OMD)、CTAB、6--2010-10,30(10)SDS。MEUF,1〔1-2,23-26〕。1,,MEUF80%,99%。CTAB+OMC-10TRCTAB,CTAB+OMC-10(0.160g/L)CTAB(0.335g/L)。CMCCMC。SDS,。。4:(1)。(2)“”。、,“”。(3)。、、,。(4)。。2.3MEUF,,,。,,,。S.K.Misra〔27〕SDS(50mmol/L)(0.072%)、(0.03%)(0.00958%),95.8%、99.0%、80.1%;,(0.134%)、(0.03%)94.0%99.0%,,SDS,SDS,。3MEUF3.1pHpHMEUF。pH3,。DCATCASDSCd2+、Cu2+、Ni2+、Pb2+、Zn2+5,pH=6pH=3,pH=6pH=3〔11〕。pH3.0~12.0,SDSCd2+,Cd2+pH,pH=3.082.0%pH=12.099.0%。H+,。pH。MEUF。pH。pHCTAB4-,APGpH。APG4-pH8~9,pH9。4-4-4-。3.2,CMC。-,-CMC,,Krafft。,,。CMC,,CTABCPCCMC,SDS。GuangmingZeng〔1〕CPC20~50℃,CPC。,,,CPC,,:MEUF1MEUF/%CPC92.9PEO-PPO-PEO99.3SDS94.3SDS+OMC-1072.3SDST99.0SDS27.0CPC84.0CTAB1,2-80.5CTABT99.3CTABR98.9CTAB+CPC88.4CTAB+OMC-10T98.6CTAB+OMC-10R97.97--2010-10,30(10),CPC,。3.3MEUF(MWCO),。MEUFMWCO。,MWCO,,,。,CMC,,。(),()。,,,,。CTABT,,99%,,77.1%;CTAB,,,,。3.4(NaCl)CMC,。Na+,,。CPCCrO43-,NaCl1mmol/L500mmol/L,CPC1mmol/L0.15mmol/L;NaCl100mmol/L500mmol/L,CrO43-90%46%〔17〕。。,。,,。GuangmingZeng〔1〕CPC,3mmol/LNa2CO3,95%。,,Na2CO3>Na2SO4>NaCl。Na2CO3,。,,,CPC。4MEUFMEUF,,,,MEUF。4.1W.H.Zhang〔28〕SDSEDTAPb(MDF),4℃,SDS,,,。SDS,,,。SDS,,MDF42%40%,。PEO-PPO-PEO1-,25℃15℃,,CMC,30%。,。4.2。M.K.Purkait〔23〕MEUF,CPC,KI,CPC(CPI),,CuCl2CPCCu2I2,Cu2I2,CPC,90%。R.S.Juang〔7〕SDSMEUFCa2+,,Na2CO3SDS;,NaOH,。SDS45%~55%,SDSMEUF,98%50%~58%。SDS,,。Cu2+SDSMEUF8--2010-10,30(10)(25),:MEUF、,Cu2+,,。Cu2+Cu2+/SDS,91.1%Cu2+,SDSSDS;54.7%Cu2+,SDSSDS。,,。4.3XueLi〔29〕Cd2+/Zn2+、SDSMEUF(EDTA)、、,,SDS。:EDTA,pH=4.4,Cd2+/Zn2+SDS,SDS65.5%~68.5%,SDSMEUF,Cd2+90.3%,Zn2+89.6%。SDS,,,SDS,,,SDS,SDS。4.4H.J.Kim〔30〕Cu2+/Cd2+、SDSMEUF3pH1,,SDS。,pH0.4~0.5,SDSCu2+Cd2+。Cu2+Cd2+85.6%100%。Cu2+Cd2+94.7%97.6%。,pH1。SDS,H+SDS。,。5MEUFMEUF,:(1),,;(2),;(3),;(4),,,,。MEUF:MEUF,。,,,。。[][1]ZengGuangming,XuKe,HuangJinhui,etal.Micellarenhancedultrafiltrationofphenolinsyntheticwastewaterusingpolysulfonespiralmembrane[J].JournalofMembraneScience,2008,310(1/2):149-160.[2]XuKe,ZengGuangming,HuangJinhui,etal.RemovalofCd2+fromsyntheticwastewaterusingmicellar-enhancedultrafiltrationwithhol-lowfibermembrane[J].ColloidsandSurfacesA:PhysicochemicalandEngineeringAspects,2007,294(1/2/3):140-146.[3]SadaouiZ,AzougC,CharbitG,etal.Surfactantsforseparationprocesses:enhancedultrafiltration[J].JournalofEnvironmentalEngi-neering,1998,124(8):695-700.[4]HuangJinhui,ZengGuangming,XuKe,etal.Removalofcadmiumionsfromaqueoussolutionviamicellar-enhancedultrafiltration[J].TransactionsofNonferrousMetalsSocietyofChina,2005,15(1):184-189.[5]GhezziL,MonteleoneG,RobinsonB,etal.Metalextractioninwa-ter/micellesystems:Complexformation,strippingandrecoveryofCd()[J].ColloidsandSurfacesA:PysicochemicalandEngineer-ingAspects,2008,317(1/2/3):717-721.[6]JungJ,YangbJS,KimaSH.Feasibilityofmicellar-enhancedul-trafiltration(MEUF)fort

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