超聲場協(xié)同平板膜微濾TiO2懸漿液過程.pdf

1、合肥工業(yè)大學(xué)碩士學(xué)位論文超聲場協(xié)同平板膜微濾TiO2懸漿液過程姓名：熊偉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：崔鵬201204InvestigatiOnonuItrasound—enhancedplatemembranemicrofiltrationoffineTi02suspensionAbstractThepapermainlyinvestigatedtheultrasound—enhancedplatemembranemicr

2、ofiltrationprocessTheacousticintensitydistributioninultrasonicgeneratorwascalculatedandthenwasmeasuredThectA1203ceramicmembranewaschosenforthefollowingexperimentsbycomparingthemembranestabilityTheoDtimizationdiameterforu

3、ltrasoundenhancedplatemembranemicrofiltrationprocesswasselectedAndtherelationshipbetweenacousticintensityandultrasonicenhancementeffectwasdiscussedBasedontheacoustictheorytherelativeacousticintensityofultrasonicequipment

4、inhorizontalandverticaldirectionwascalculatedAndtheexperimentalacousticintensitydistributionandattenuationinultrasonicgeneratorWaSmeasuredbyultrasonicpowermeasuringmeterTheresultsshowedthattheacousticintensitydistributio

5、ninthree—dimensionalspaceofultrasonicgeneratorwasnon—uniformAndthetheoreticalvaluetosomeexperimentalacousticintensityvaluematchedwiththeextent，whichindicatedthatthetheoreticalacousticintensityvaluecouldbeusedtoverifythee

6、xperimentalvalueTheevolutionofthepropertyofplatemembraneexposedtoultrasonicirradiationwasfollowedbythecalculationofthemembranefluxfactorFandtherejectionrateRAsfortheQA1203ceramicmembrane，whentheacousticintensitvwas104Wcm

7、2，theultrasonicfrequencywas45kHz，andtheirradiationdurationwas60min，F(xiàn)was134andRwas092The0【一A1203ceramicmembranewaschosenforthefollowingexperimentsduetoitshighresistantunderultrasonicirradiationTheeffectofoperationfactorso

8、nthecross—flowmicrofiltrationoffineTi02suspensionsystemwithceramicplatemembranewasinvestigatedTheoptimizationdiameterwasselectedthatthefeedconcentrationwas10gL～，thecross—flowvelocitywas05ms～，thetrans—membranepressurewas0

9、04MPa，themembraneporesizewas200衄，thenominalultrasonicpowerwas200Wandtheultrasonicfrequencywas45kHz，ultrasonicirradiationshowedhighenhancementeffectandtheultrasonicenhancementfactor(Dwas134whiletheratioofremovedcakelayer(