复合无机纳米颗粒改性有机超滤膜的制备及其性能研究

“21”[1-3]。、、[4-6]。、[7-10]。PVDF、、、[11-12]。PVDF。PVDFPVDF2。、。11.1PVDFPVDFN,N-DMAC20min。2d。25℃65％L-S。。24hPVDF。81。1232。PVDF3113%TiO2A12O31:1。1.210.1、0.2MPa。JWJW=VW/(At)。VWAt。163318、、、X。3%1:1PVDF、。PVDFTQ028.8A1000-3770(2011)07-0029-0052010[e-mail]37720117TECHNOLOGYOFWATERTREATMENTVol.37No.7Jul.,2011292SEM、SEM、。3XSEM。1X。22.122。。2PVDF000PVDF311。0.2MPaPVDF311PVDF0001190L·m-2·h-1。PVDFPVDF。。2。2PVDF。22PVDF3113%TiO2A12O31:1。2.2SEMX2.2.18SEM1。1。PVDF000。PVDF312PVDF321、PVDF312PVDF321。PVDF4116。1(c)PVDF3031(d)PVDF3111(e)PVDF3121(f)PVDF3211(g)PVDF2111(h)PVDF4111SEMFig.1SEMofmembranesurfaceTiO2Al2O3PVDF000PVDF330PVDF303PVDF311PVDF312PVDF321PVDF211PVDF41115.0014.5514.5514.5514.5514.5514.7014.4080.077.677.677.677.677.678.476.8555555550.002.850.001.4250.951.900.951.900.000.002.851.4251.900.950.951.901Tab.1CompositionofcastingsolutionDMACw/%PVDFPVDF000PVDF330PVDF303PVDF31110681325180323041788284825952978PVDF312PVDF321PVDF211PVDF4111673145617291494274025362906296520.1、0.2MPaTab.2Thewaterfluxsofvariouscastingsolutionunder0.1,0.2MPaJW/L·m-2·h-1JW/L·m-2·h-10.1MPa0.2MPa0.1MPa0.2MPa1(a)PVDF0001(b)PVDF33037730PVDF。2.2.2SEM2。24。PVDF。2.2.33。3。2.2.4XX4。4PVDF。。X33。2%、3%、4%TiO2A12O31:1。3。4(c)PVDF3034(b)PVDF3304(a)PVDF000(a)PVDF000(b)PVDF330(c)PVDF303(d)PVDF3113SEMFig.3SEMofmembraneporewall(a)PVDF000(b)PVDF330(c)PVDF303(d)PVDF3112SEMFig.2SEMofmembranecross-section31。。3%TiO2A12O31:1。3。SEMX、、。2PVDF3%2TiO2A12O31:1SEMXPVDFPVDF。[1],,.[J].,2008,3(1):48-53.[2],,,./[J].,2008,8(2):1011-1025.[3],,,.[J].,2008,34(2):28-31.[4],,,.[J].,2009,25(2):1-4.[5]JiangWei,GitteSHelm,NickCorner-Walker,etal.Characterizationofanon-foulingultrafiltrationmembrane[J].Desalination,2006,192:252-261.[6]MinggangZhang,QuangTrongNguyen,ZhenghuaPing.Hydrophilicmodificationofpoly(vinylidenefluoride)microporousmembrane[J].JournalofMembraneScience,2009,327:78-86.[7]FuLiu,Bao-KuZhu,You-YiXu.Improvingthehydrophilicityofpoly(vinylidenefluoride)porousmembranesbyelectronbeaminitiatedsurfacegraftingofAA/SSSbinarymonomers[J].AppliedSurfaceScience,2006,253(4):2096-2101.[8]ZhuLiping,YuJingzhen,XuYouyi,etal.SurfacemodificationofPVDFporousmembranesviapoly(DOPA)coatingandheparinimmobilization[J].ColloidsandSurfacesB:Biointerfaces,2009,69:152-155.[9]YungChang,Yu-JuShih,Ruoh-ChyuRuaan,etal.Preparationofpoly(vinylidenefluoride)microfiltrationmembranewithuniformsurface-copolymerizedpoly(ethyleneglycol)methacrylateandimprovementofbloodcompatibility[J].JournalofMembraneScience,2008,309:165-174.[10]MGBuonomenna,LCLopez,PFavia.NewPVDFmembranes:Theeffectofplasmasurfacemodificationonretentioninnanofiltrationofaqueoussolutioncontainingorganiccompounds[J].WaterResearch,2007,41:4309-4316.[11],,.[J].,2003,23(2):57-61.[12],,.[J].,2006,26(2):5-9.FAlTiPVDF211PVDF311PVDF41134.3231.8332.2309.5309.5609.1234.0637.4334.490.341.521.3912.1019.6526.763Tab.3Optimizedinorganicnano-particlesmodifiedultrafiltrationmembraneelementsOw/%C4(e)PVDF2114(d)PVDF3114(f)PVDF4114XFig.4X-rayspectroscopy37732[40]Angeles-HernandezMJ,LeekeGA,SantosRCD.Catalyticsupercrit-icalwateroxidationforthedestructionofquinolineoverMnO2/CuOmixedcatalyst[J].Industrial&EngineeringChemistryResearch,2009,48(3):1208-1214.[41],,.MnOx／TiO2-Al2O3[J].,2007,36(7):659-663.[42],.[C].COD,,2007:24-30.[43],,,./UASB/[J].,2005,21(9):76-77.[44],.[J].,2005,30(5):79-80.[45],,,.[J].,2006,32(6):37-40.RESEARCHPROCESSOFADVANCEDOXIDATIONPROCESSESINWASTEWATERTREATMENTJiangChuanchunXiaoRongrongYangPing(CollegeofArchitectureandEnvironmentalEngineeringSichuanUniversityChengdu610065,China)AbstractAdvancedoxidationprocessescaneffectivelytreatindustrialwastewaterofhighdensity,hightoxicityandpoorbiodegradability.Thebasicprincipleofadvancedoxidationtechnologieswasreviewed.TheresearchprocessinrecentyearsforwastewatertreatmentbyFenton,photo-catalyticoxi-dation,ozoneoxidation,ultrasonicoxidation,wetoxidationandsupercriticalwateroxidation,wassummarized.Theadvantagesandshortcomingsinprac-ticeofeachadvancedoxidationtechnologywereresearchedinto,andthemaindevelopmentdirectioninfutureofthemwerealsopointedout.Keywordsadvancedoxidationprocesses(AOPs)wastewatertreatment·OHRESEARCHOFSTRUCTUREANDPROPERTYOFPESANDSPESMEMBRANELiuShanshan,JinJianbo,HanYu,LuYin(FacultyofLifeScience&BiologicalEngineering,KeyLaboratoryofAppliedMarineBiotechnologofMinistryofEducation,NingboUniversity,Ningbo315211,China)Abstract:SEMandporesizedistributiondevicewereusedtocharacterizethepolyethersulfone(PES)andsulfonatedpolyethersulfone(SPES)membrane.Themembraneresistanceproportioninfiltering1g·L-1BSAsolutionwasresearchedaccordingtoDarcy-Poiseuille'slaw.ResultsshowedthatPESmembraneporesizerange0.22~0.27μmandtheinitialpurewaterfluxwas642L·m-2·h-1.Thepseudosteadystatefluxoffiltering1g·L-1BSAsolutionwasabout30.4~31.9L·m-2·h-1SPESmembraneporesizerange5.2~11.1nm.Theinitialpurewaterfluxwas8.1L·m-2·h-1andthepseudosteadystatefluxoffiltering1g·L-1BSAsolutionwasabout3.4~6.9L·m-2·h-1.WhenthePESmembranewasusedtofilterBSAsolution,resistancecausedoftheadsorptionandporeblockin