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当前位置:首页 > 商业/管理/HR > 企业文化 > 超滤膜在饮用水处理中临界通量的影响因素研究齐鲁
INDUSTRIALWATER&WASTEWATERVol.42No.6Dec.,20111,1,1,1,2,2,3,3(1.,100872;2.,215012;3.,150090)[1-3]。,,,:,,、。,10m3/(m2·h),5L/(m2·h),40m3/(m2·h),5L/(m2·h),;,40m3/(m2·h),5L/(m2·h);10L/(m2·h)、--15L/(m2·h)。:;;;;;:TU991.24:A:%1009-2455(2011)06-0010-05FactorsaffectingcriticalfluxofultrafiltrationmembraneindrinkingwatertreatmentQILu1,WANGHong-chen1,ZHENGXiang1,CHENGRong1,CHENQing2,CHENJie2,LIANGHeng3,LIGui-bai3(1.SchoolofEnvironmentandNaturalResource,RenminUniversityofChina,Beijing100872,China;2.SuzhouLitreeMembraneSeparationTechnologyCo.,Ltd.,Suzhou215012,China;3.StateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Nofoulingorverylittlefoulingwouldbecausedbythefiltrationofultrafiltrationmembraneunderthecriticalflux.Accordingtothefactorsaffectingthecriticalfluxofultrafiltrationmembraneindrinkingwatertreatment,theeffectsofaeration,filtrationmode,coagulationsedimentationpretreatmentandsomeotherfactorsonthecriticalfluxofthesubmergedultrafiltrationmembraneintreatmentofwaterfromSonghuaRiverwereinvestigated.Theresultsshowedthat,criticalfluxcouldbeenhancedby5L/(m2·h)undercontinuousaerationwiththeintensityof10m3/(m2·h),andthesameeffectcouldalsobeobtainedunderintermittentaerationwiththeintensityof40m3/(m2·h),however,afterthat,thecriticalfluxcouldnolongerbeincreasedbyincreasingaerationintensity.Intermittentfiltrationhadnopositiveeffectoncriticalflux,whentheaerationintensitywas40m3/(m2·h),intermittentfiltrationwithintermittentaerationcouldenhancethecriticalfluxby5L/(m2·h).Criticalfluxcouldbeenhancedby10L/(m2·h)whenusingcoagulationsedimentationpretreatment,andbeenhancedby15L/(m2·h)whenusingcombinedprocessofcoagulation-continuousaerationandcoagulation-intermittentfiltrationandintermittentaeration.Keywords:ultrafiltrationmembrane;criticalflux;aeration;filtrationmode;pretreatment;membranefouling:(50808051):2011-07-11;:2011-08-02!!!!!!!!!!!!!!·10·1Tab.1SourcewaterqualitypH/NTUρ(DOC)/(mg·L-1)UV254/cm-16.86~7.8317.4~20.67.30~8.150.081~0.096ρ(CODMn)/(mg·L-1)/℃/(mg·L-1)/(mg·L-1)4.83~5.4220.5~23.054.3~70.268.5~81.0:CaCO31Fig.1Experimentalset-up12345678910PLC1112365479118102PVCTab.2CharacteristicsofPVCultrafiltrationmembrane/kDa/(°)/mm/mmPVC10067.00.851.45,,。,,、,[4-8]。1995Field(Criticalflux)[9],,,,,,,,。,[10-11],。11.1,,4℃,,1。1.21,,,,,,,。,。PLC,,。2,0.01m2,30L/(m2·h),。(PVC),2。1.3,。,。:、-、-、-;-30s,30s;-4.5min30s。JJ-4,,10mg/L,,,,5d,1,30min,。22.1,、,,,,:·11·INDUSTRIALWATER&WASTEWATERVol.42No.6Dec.,2011306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa55453525155(d):40m3/(m2·h)2PVCFig.2EffectofaerationintensityoncriticalfluxofPVCultrafiltrationmembraneundercontinuousaeration306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa453525155(a):10m3/(m2·h)TMP306090120150/min/(L·m-2·h-1)6050403020100TMP/kPa453525155(b):20m3/(m2·h)306090120150/min/(L·m-2·h-1)6050403020100 TMPTMP/kPa55453525155(a):0m3/(m2·h)TMP306090120150/min/(L·m-2·h-1)6050403020100TMP/kPa55453525155(b):2.5m3/(m2·h)306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa55453525155(c):10m3/(m2·h)。,,(TMP),。,,1min/4min。2.5、1040m3/(m2·h)(),10、20、40、80m3/(m2·h)。PVC2。,PVC22.5L/(m2·h)。2.5、1040m3/(m2·h),PVC22.5、27.527.5L/(m2·h)。,10m3/(m2·h)2,。PVC3。10、20、4080m3/(m2·h),PVC22.5、22.5、27.527.5L/(m2·h)。·12· 306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa453525155(d):80m3/(m2·h)3PVCFig.3EffectofaerationintensityoncriticalfluxofPVCultrafiltrationmembraneunderintermittentaeration4PVCFig.4EffectoffiltrationmodeoncriticalfluxofPVCultrafiltrationmembraneTMP306090120150/min/(L·m-2·h-1)6050403020100TMP/kPa453525155(b)306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa453525155(a)TMP306090120150/min/(L·m-2·h-1)6050403020100TMP/kPa453525155(a)306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa(b)-453525155306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa453525155(c):40m3/(m2·h)2.2,,TMP。,4min/1min,,4min/1min,1min/4min,40m3/(m2·h),1minUF。24。2,PVC22.527.5L/(m2·h),,,。,,。,,。2.325。,,,:·13·INDUSTRIALWATER&WASTEWATERVol.42No.6Dec.,2011306090120150/min/(L·m-2·h-1)6050403020100TMPTMP/kPa453525155(c)-5PVCFig.5EffectofcoagulationpretreatmentoncriticalfluxofPVCultrafiltrationmembrane10m3/(m2·h),40m3/(m2·h),、--3,PVC32.5、37.537.5L/(m2·h)。3(1)(10m3/(m2·h),40m3/(m2·h)),,,。(2),。(3),。:[1]YiantsiosSG,KarabelasAJ.AnexperimentalstudyofhumicacidandpowderedactivatedcarbondepositiononUFmembranesandtheirremovalbybackwashing[J].Desalination,2010,140(3):195-209.[2]BrinckJ,JonssonAS,JonssonB,etal.InfluenceofpHontheadsorptivefoulingofultrafiltrationmembranesbyfattyacid[J].JournalofMembraneScience,2000,164(12):187-194.[3]MignardD,GlassDH.Foulingduringthecross-flowultrafiltrationofproteins:amass-transfermodel[J].JounalofMembraneScience,2001,186(2):133-143.[4],,,.[J].(),2009,25(6):664-668.[5],,.[J].,2009,29(1):6-10.[6],,,.[J].,2010,36(2):21-24.[7],,.[J].,2005,25(5):31-35.[8],,.[J].,2006,37(1):14-17.[9]FieldRW,WuD,HowellJA,etal.Criticalfluxconceptformicrofiltrationfouling[J].JournalofMembraneScience,1995,10
本文标题:超滤膜在饮用水处理中临界通量的影响因素研究齐鲁
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