错流微滤过程的无因次特征量马智英

273　　　Vol.27　No.320076SHANXICHEMICALINDUSTRYJun.2007:2007-03-28:,,1981,。:。　马智英,　孙彦平,　丁光月(太原理工大学洁净化工研究所,山西　太原　030024):,,RemEum,。EumRem,EumRem。:;;;:O657.7　　:A　　:1004-7050(2007)03-0036-02　,,、,。[1]。,[2],。,dp、ΔP、v[1～5],,。,,,RemEum,,。1　(dp),1,ΔPFP,Fv,()FLFμ[2,3]。FPFL,;FP≤FL,。FvFμ,。,,ΔP、v,。。1　2　、[1,3]。[5],,J/J0,J0DOI:10.16525/j.cnki.cn14-1109/tq.2007.03.012,,。1。1　J/J0[L0M0T0]ρ[L-3M1T0]dp[L1M0T0](、)μ[L-1M1T-1]ΔP[L-1M1T-2]v[LM0T-1]　　,:JJ0=Υdpρvμ,ΔPρv2(1):J/J0dpρvμΔPρv2。ReEu,,,RemEum。,FP=ΔPd2p,Fv=FL=ρd2pv2,Fμ=μdpv[6],:Eum=ΔPρv2=ΔPd2pρd2pv2=FPFL(2)Rem=dpρvμ=ρd2pv2μdpv=FvFμ(3)(2)、(3),EumFPFL,Eum,,;RemFvFμ,Rem,,。Eum、Rem,,。3　0.2μmAl2O3,CaCO3,EumRem。2。Rem、Eum,。21、2、3,Eum,;34,Eum,Rem。2　EumRem24EumRem。,EumRem。4　EumRem,,。Eum、Rem。:[1]　,,　.、[D].:,1998.[2]　BelfortG,DavisRH,ZydneyAL.Thebehaviourofsuspensionsandmacromolecul-earsolutionsincrossflowmicrofiltration[J].JMembrSci,1994(96):1-58.[3]　AltmannJ,RippergerS.Particledepositionandlayerformationatthecrossflowmicrofil-tration[J].JMembrSci,1997(124):119-128.[4]　HaritK,VyasRJ,BennettAD.Cakeresistanceandforcebalancemechanisminthecrossflowmicrofiltrationoflactalbuminparticles[J].JMembrSci,2001(192):165-176.[5]　SongLianfa.Fluxdeclineincrossflowmicrofiltrationandultrafiltration:mechanismsandmodelingofmembranefouling[J].JMembrSci,1998(139):183-200.[6]　.[M].,.:,1984.(英文摘要下转第43页)·37·　20076　　　　　　　　　　　　,　　　　　　　　　　　　　　　　　　　6　12/μg0.881.76/μg3030/μg27.8232.46/%96.5102.3/%99.43　1),。,210min。2),,;,;,;10min～20min;,;1min,。3),,;,,。,180L、1L/min。。,。4),1.2μg/mL。180L,0.01mg/m3。6.7μg/mL～366.7μg/mL。。5)(,0.06mg/m3),,。:[1]　《》.[M].:,1998.[2]　《》.[M].2.:,1994.StudyonthemethodsofmeasuringtheconcentrationofcaprolactamintheairBIXiao-jian(TheEnviromentalMonitoringStationofFenxiMiningGroupofShanxiProvince,JiexiuShanxi032000,China)Abstract:Inpresenceofthealkalinemedium,caprolactamcanreactwithhydroxylaminesulfatetoformhydroxamicacid,thenhydrox-amicacidcanreactwithFe3+toformredcomplexwhichcontentisindirectproportiontoitscolordegree,sothecontentofredcom-plexcanbedeterminedusingcolorimetry.Thetestconfirmedthemethodofmonitoringcaprolactam.Thismethodwasusedtomen-suratetheconcentrationofcaprolactamintheworkshop'air.Keywords:caprolactam;spectrophotometry;atmosphere;measuring(上接第37页)DimensionlesscharacteristicparametersforcrossflowmicrofiltrationprocessMAZhi-ying,SUNYan-ping,DINGGuang-yue(DepartmentofChemicalEngineeringofTUT,TaiyuanUniversityofTechnology,TaiyuanShanxi030024,China)Abstract:Byanalyzingtheforcebalanceofasuspensionparticleincrossflowmicrofiltrationprocess,thenovelcharacteristicparame-tersRemandEumwerededucedbyusingdimensionalanalysismethod,whichreasonablygeneralizethecomplexeffectsoftheimpor-tantprocessparametersontheparticulatedepositingtothesurfaceofthemembrane.ThepredictiondataofthemathematicmodelbasedonRemandEumgavegoodcorrespondencewiththeexperimentaldata.Thisconldilluminatetherationalityforusingthemtocharacterizecomplexprocesssimilarityofcrossflowmicrofiltration.Keywords:crossflowmicrofiltration;dimensionlesscharacteristicparameters;membraneflux·43·　20076　　　　　　　　　　　　,