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PANCApHPAN、。[1-5]。-[6-8]。A12O3/。。、。11.1PANCADM-SOAl2O3。。DV＋ProBrookfieldJSM-6390LVJEOLMSC300725。1.237Al2O3。1.31.3.1SEM。1.3.2。1.3.325℃、0.1～0.5MPaCA/PAN-Al2O3－1121.2660712.261100CAPANAl2O3--。50℃。TQ028.8A1000-3700(2009)02-053-052008-06-181981-E-mailpolymer@188.com0532-859537930532-85953069。35220092TECHNOLOGYOFWATERTREATMENTVol.35No.2Feb.,20095319.625cm2。1.3.4105℃。。280nm1cm。。。。280nmAC1R=Cf-CpCf×100%1CpCf。1.3.520～25℃2mm·min-1。1.3.6J03J13J22m。m=J0-J2J2222.12.1.1160℃70℃。160℃92.21%。。60℃60℃。2.1.22。Al2O360℃60℃。Al2O32%0.2MPa20℃60℃83mL·cm-2·h-195mL·cm-2·h-170℃93mL·cm-2·h-160℃。1Table1PorosityofUFmembranepreparedatdifferenttemperature/℃/%20304050607085.8787.6489.5791.2092.2191.031b40℃1a20℃1Fig.1SEMpicturesofUFmembranesurfacepreparedatdifferenttemperature1c60℃1d70℃35254。360℃60℃。。2.1.30、0.05、0.1、0.15g·L-1A12O32%4。44。0.1MPa0.3MPa。。0.10g·L-187%0.15g·L-184%。2.2、2.2.12。2NaOH。NaOH0mol·L-11.00mol·L-112.4351N4.7412N61.9%3.21%1.14%64.5%。。2.2.20.1MPaBSA5。NaOH0mol·L-10.25mol·L-140.5%。0.75mol·L-10.10.20.30.40.5020406080100120140160180200J/mL cm h /MPa 4Fig.4Effectofcoagulateconcentrationonflux203040506070020406080100120140J/mLcm h 2a0%Al2O320304050607020406080100120140160J/mLcm h 2b2%Al2O32Fig.2ChangeoffluxofUFmembranewithcoagulatedtemperature20304050607060657075808590/% 3Fig.3ChangeofrejectionwithcoagulatedtemperatureNaOH/mol·L-1/N/%00.250.500.751.0012.43517.75246.12745.46594.74123.211.321.261.201.142Table2TensilestrengthandbreakingelongationpercentageofUFmembraneCA/PAN-Al2O3－551.0mol·L-118%NaOH。2.2.31、3、5mol·L-1HClA12O32%。。6HCl。2hHCl3mol·L-150mL·cm-2·h-144mL·cm-2·h-112%2h3mol·L-2～3h44mL·cm-2·h-122mL·cm-2·h-150%。HCl。7HClHCl2h3。HCl2h。2.2.43。3HClHCl。HCl。90min10min4。。03060901201501802102402701015202530354045505560J/mLcm h /min 6Fig.6ChangeoffluxwithrunningtimeafteracidmodificationHCl/mol·L-1/mL·cm-2·h-1/mL·cm-2·h-1/m013545.1040.5638.7837.9828.9115.0013.5713.670.560.370.350.363Table3Declineoffluxwith0.1%BSA03060901201501802102402707072747678808284868890/% /min 7Fig.7Changeofrejectionwithrunningtimeafteracidmodification0.00.20.40.60.81.005101520253035404550/% NaOH/mol L J/mL cm h 70758085905Fig.5EffectofNaOHconcentrationonfluxandrejectionHCl/mol·L-1/mL·cm-2·h-1/mL·cm-2·h-1/%013545.1040.5638.7837.9836.3732.3430.7829.0780.6579.7379.3676.534Table4Recoveryoffluxafterwashing35256NITROGENREMOVALMECHANISMOFTHECONSTRUCTEDRAPIDINFILTRATIONSYSTEMCHENJun-min1,LIUFang1,FUYong-sheng1,YANJi-fu2（1.SchoolofEnvironmentalSci.andEng.,SouthwestJiaotongUniversity,Chengdu610031,China;2.ChinaInstituteofWaterResourcesandHydropowerResearch,Bejing100044,China）Abstract:Inordertounderstandthenitrogenremovalmechanism,thevariationlawoftheammonia,nitrateandtotalnitrogenconcentrationwithheightisobtainedbymonitoringtheirconcentrationsofthesimulatedsoilcolumneffluentfromthedifferentoutletsinsteadofCRIsystem.Theresultsdemon-stratedthattheammonianitrogenremovalrateisabout95%ofthetotalone,inthesectionof0～900mmtheinfiltrationmediainthesimulatedsoilcolumn.Theshalloweritsheight,thehighertheammonianitrogenremovalrateis.Thenitratenitrogenconcentrationreachesthemaximums,14.08～15.06mg·L-1;Inthefacultativeanaerobic(900～1200mm)andanaerobic(1200～1500mm)sections,thedescentrangeofnitratenitrogenconcentra-tionis10%ofitsmaximum,andthetotalnitrogenconcentrationoftheeffluent16.50～21.85mg·L-1,itsremovalrateisonly28.35%～29.78%.Keywords：constructedrapidinfiltrationsystem;nitrogenremoval;nitration;denitrification3。60℃BSA60℃。50℃。。0.10g·L-1。NaOH。NaOH。HCl。2hHCl3mol·L-1。[1],,,./[J].,1997,17(5):36-41.[2],,,.PAN/CA[J].,1998,24(4):195-199.[3],,./[J].,2002,22(2):10-12.[4],,,.CAPAN[J].,2005,6(2):175-177.[5].CA/PAN[J].,1993,9(3):110-114.[6],.-[J].,2004,16(4):654-659.[7],,.SiO2[J].,2006,26(1)31-34.[8],,,.γ-A12O3/PVDF[J].,2004(4):199-201.PREPARATIONOFCA/PAN-Al2O3COMPOSITEULTRAFILTRATIONMEMBRANEHULi-wei1,XIAYan-zhi1,PANGFeng-jian2(1.StateKeyLaboratoryCultivatingBaseofAdvancedfibersandTextiles，QingdaoUniversity,Qingdao266071,China;2.ShanDongHelonCo.Ltd.,Weifang266011,China)Abstract:CA/PANcompositeultrafiltrationmembraneswerepreparedbyusingAl2O3nanoparticlesasadditiveswithphasereversemethod.Thetemperatureandcompositionofwaterbathwereinvestigatedandresultsshowedthatthesetwoaspectshadgreateffectonthepropertyofthemembrane.50℃wasfavorableandproperadditionofSDScanimproverejectionandfluxofthemembrane.Keywords:CA;PAN;Al2O3nanoparticles!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!34CA/PAN-Al2O3－57