動態(tài)膜在油水乳化液分離中的應(yīng)用研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文動態(tài)膜在油水乳化液分離中的應(yīng)用研究姓名：王婷婷申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：潘艷秋20090701動態(tài)膜在油水乳化液分離中的應(yīng)用研究TheApplicationofDynamicMembraneintheSeparationofoilinwaterEmulsionsAbstractTheoilyemulsionwastewateriSakindofwastewaterwhichiSverydiffic

2、ulttoseparateMembranetechnologyisoneofthemosteffectivemethodsforoilinwateremulsionsseparationincomparisonwiththetraditionalseparationmethodsHowever，membranefoulingisamaindrawbackinthepracticalapplicationinoilinwateremuls

3、ionsseparationPreparationandselectionofthehydrophilicmembranetoseparateoilinwateremulsionsisnecessaryDynamicmembrane(DM)technologyisanovelandsimplemethodformembranemodificationDynamicmembranehasmanyadvantages，forexample，

4、simplepreparationlowcostgreatflux，strongretentionabilityrichmaterialandSOonRecentyears，precoatingthelowcoatfiltrationmediumbyusingsomespecialparticleshasbeenprovedasaninterestingandpotentialakernativeforwastewatertreatme

5、ntTitaniumdioxidedynamicmembranesformedoncarbontubesupportviacrossflowmicrofiltrationandtheirperformancesinseparationofoilinwateremulsionsareexperimentallystudiedTheeffectofoperatingconditionsondynamicmembranepreparation

6、isinvestigatedTheorthogonalexperimentsareconductedandtheresultsofvarianceanalysisshowthattheeffectofoperatingconditionsonoilinwateremulsionsseparationisnotsignificantExperimentanalysisresultsinthefollowingoptimumconditio

7、nsofpreparing，suchassuspensionconcentrationisO59／L，preparationpressureis0IOMPacross—flowvelocityis113m／sThesurfaceofthepreparedtitaniumdioxidedynamicmembraneisrelativelysmoothlyanduniformandtheparticlesarrangedneatlyTita

8、niumdioxideparticlesCanfillupthedefectsofsupportintheseparationofoil—inwateremulsionsDynamicmembranelayercanchangethehydrophilichydrophobicpropertyofthesupport，andithasallasymmetricstructurewiththesupportDynamicmembraneh

9、asanarroxVvdiameterdistributionTheeffectsoffeedconcentration，transmembranepressure，cross—flowvelocity，temperatureandpHonoil—inwateremulsionsseparationareinvestigatedExperimentresultsshowthatoilrejectionefficiencyofthepre

10、pareddynamicmembraneismorethan98％andoilconcentrationofpermeatesolutionislessthan83mg／L，whichmeetstherequirementofnationaldrainagecontrolregulationsBasedontheexperimentresults，anovelconcept，“steadyfluxdecayratio”(FDR)ofdy