薄膜技術 簡介课件

國立屏東科技大學食品科學系碩士在職專班專題討論以微過濾陶瓷薄膜及超過濾陶瓷薄膜澄清蘋果汁MicrofiltrationandUltrafiltrationCeramicMembranesforAppleJuiceClarification報告人:孫丕忠N8936030報告日期:90年9月23日指導教授:古源光博士國立屏東科技大學食品科學系碩士在職專班專題討論以微過濾陶瓷1薄膜技術簡介薄膜技術簡介2薄膜技術簡介

薄膜之定義：

Interphase、SelectiveBarrier

依構造：Homogeneous/HeterogeneousSymmetric/Asymmetric

依電性：中性、正電性、陰電性、兩性膜

薄膜技術簡介薄膜之定義：3薄膜技術簡介

垂直流過濾(dead-endedflow)suspensionflowPermeatemembranecakepermeatefluxtime薄膜技術簡介垂直流過濾(dead-endedflow4薄膜技術簡介

平行流過濾(crossflow)suspensionflowPermeatemembranepermeatefluxtimefoulingretentate薄膜技術簡介平行流過濾(crossflow)susp5薄膜技術簡介

MembraneUnitOperations:(I)

ReverseOsmosis;RO(Hyperfiltration)MWCO<500daltonsMolecularsize:0.1–1.0nm

Nanofiltration;NFLowpressureRO,Ultra-OsmosisMWCO<5,000daltonsMolecularsize<10nm

Ultrafiltration;UFMWCO<500–5,000daltonsMolecularsize<1.0–100nm

薄膜技術簡介MembraneUnitOperatio6薄膜技術簡介

MembraneUnitOperations:(II)

Microfiltration;MFMWCO<300,000daltonsMolecularsize:100–10,000nm

Diafiltration;DFUF,NForRO+PureSolventDilution,ReducedOsmosisPressure

Electrodialysis;EDAnionI-EMembrane+CationI-EMembrane薄膜技術簡介MembraneUnitOperatio7薄膜技術簡介

StandardMembraneEquipment(Modules):

FlatPlateModule

SpiralWoundModule

TubularModule

HollowFiberModule薄膜技術簡介StandardMembraneEqui8薄膜技術簡介

薄膜技術在食品工業上之應用:

濃縮之應用

澄清之應用

區分之應用

殺菌之應用廢水處理之應用薄膜技術簡介薄膜技術在食品工業上之應用:9材料與方法材料與方法10●

AppleJuices:CTJ

:DepectinizedcontrolapplejuiceAAJ

:Ascorbicacidtreatedapplejuice(AA600ppm)●

AnalyticalMeasurements:

Color:A420nmTurbidity:HachRatio/XRTurbidimeterViscosity:BrookfieldLVDV-II+Viscometer&ULadapterSolubleSolids:DigitalRefractometerFlavanolContent:AcidifiedVanillinMethodProtein:Kieldahl

Method●

SensoryAnalysis:

TriangleTestEighteenJudges:10females,8males

實驗方法●AppleJuices:實驗方法11●

CeramicMembraneFiltrationSystem:實驗方法RetentateFlowPermeateFlowAirInletAirOutlet●CeramicMembraneFiltration12結果與討論結果與討論13Fig.1.FiltrationfluxofCTJandAAJapplejuicesthroughceramicmembranesinastirredcell(temperature,23℃;pressure,276kPa;stirringrate750rpm).Fig.1.FiltrationfluxofCTJ14Fig.2.BatchfiltrationfluxofCTJ&AAJapplejuicesthrough0.2㎛&0.02㎛ceramicmembranes(temperature,50℃;crossflowvelocity,8m/s;pressure,414kPa).

Fig.2.Batchfiltrationflux15Fig.3.Waterfluxthrough0.2㎛&0.02㎛ceramicmembranesbefore&afterbatchfiltrationofCTJ&AAJapplejuices(temperature,50℃;crossflowvelocity,8m/s;pressure,414kPa).WaterfluxafterjuiceFiltrationandrinsingCleanmembranewaterfluxFig.3.Waterfluxthrough0.16Fig.4.Effectofstoragetemperatureandtimeonturbidity.Fig.4.Effectofstoragetemp17Fig.5.EffectofstoragetemperatureandtimeonA420nm

.Fig.5.Effectofstoragetem18Fig.6.Effectofstoragetemperatureandtimeonflavanolcontent

.Fig.6.Effectofstoragetemp19CTJAAJ

0.2㎛0.02㎛0.2㎛0.02㎛

A420nm0.420.400.070.08Turbidity(NTU)0.400.390.530.13Viscosity@25℃(cps)1.381.401.361.37Brix12.412.212.212.6Flavanol(g/ml)7861553519ProteinContent(mg/L)32363639Table1.PhysicochemicalpropertiesofCTJ&AAJapplejuicesfilteredthrough0.2㎛&0.02㎛ceramicmembranes.

20結論結論21國立屏東科技大學食品科學系碩士在職專班專題討論以微過濾陶瓷薄膜及超過濾陶瓷薄膜澄清蘋果汁MicrofiltrationandUltrafiltrationCeramicMembranesforAppleJuiceClarification報告人:孫丕忠N8936030報告日期:90年9月23日指導教授:古源光博士國立屏東科技大學食品科學系碩士在職專班專題討論以微過濾陶瓷22薄膜技術簡介薄膜技術簡介23薄膜技術簡介

薄膜之定義：

Interphase、SelectiveBarrier

依構造：Homogeneous/HeterogeneousSymmetric/Asymmetric

依電性：中性、正電性、陰電性、兩性膜

薄膜技術簡介薄膜之定義：24薄膜技術簡介

垂直流過濾(dead-endedflow)suspensionflowPermeatemembranecakepermeatefluxtime薄膜技術簡介垂直流過濾(dead-endedflow25薄膜技術簡介

平行流過濾(crossflow)suspensionflowPermeatemembranepermeatefluxtimefoulingretentate薄膜技術簡介平行流過濾(crossflow)susp26薄膜技術簡介

MembraneUnitOperations:(I)

ReverseOsmosis;RO(Hyperfiltration)MWCO<500daltonsMolecularsize:0.1–1.0nm

Nanofiltration;NFLowpressureRO,Ultra-OsmosisMWCO<5,000daltonsMolecularsize<10nm

Ultrafiltration;UFMWCO<500–5,000daltonsMolecularsize<1.0–100nm

薄膜技術簡介MembraneUnitOperatio27薄膜技術簡介

MembraneUnitOperations:(II)

Microfiltration;MFMWCO<300,000daltonsMolecularsize:100–10,000nm

Diafiltration;DFUF,NForRO+PureSolventDilution,ReducedOsmosisPressure

Electrodialysis;EDAnionI-EMembrane+CationI-EMembrane薄膜技術簡介MembraneUnitOperatio28薄膜技術簡介

StandardMembraneEquipment(Modules):

FlatPlateModule

SpiralWoundModule

TubularModule

HollowFiberModule薄膜技術簡介StandardMembraneEqui29薄膜技術簡介

薄膜技術在食品工業上之應用:

濃縮之應用

澄清之應用

區分之應用

殺菌之應用廢水處理之應用薄膜技術簡介薄膜技術在食品工業上之應用:30材料與方法材料與方法31●

AppleJuices:CTJ

:DepectinizedcontrolapplejuiceAAJ

:Ascorbicacidtreatedapplejuice(AA600ppm)●

AnalyticalMeasurements:

Color:A420nmTurbidity:HachRatio/XRTurbidimeterViscosity:BrookfieldLVDV-II+Viscometer&ULadapterSolubleSolids:DigitalRefractometerFlavanolContent:AcidifiedVanillinMethodProtein:Kieldahl

Method●

SensoryAnalysis:

TriangleTestEighteenJudges:10females,8males

實驗方法●AppleJuices:實驗方法32●

CeramicMembraneFiltrationSystem:實驗方法RetentateFlowPermeateFlowAirInletAirOutlet●CeramicMembraneFiltration33結果與討論結果與討論34Fig.1.FiltrationfluxofCTJandAAJapplejuicesthroughceramicmembranesinastirredcell(temperature,23℃;pressure,276kPa;stirringrate750rpm).Fig.1.FiltrationfluxofCTJ35Fig.2.BatchfiltrationfluxofCTJ&AAJapplejuicesthrough0.2㎛&0.02㎛ceramicmembranes(temperature,50℃;crossflowvelocity,8m/s;pressure,414kPa).

Fig.2.Batchfiltrationflux36Fig.3.Waterfluxthrough0.2㎛&0.02㎛ceramicmembranesbefore&afterbatchfiltrationofCTJ&AAJapplejuices(temperature,50℃;crossflowvelocity,8m/s;pressure,414kPa).WaterfluxafterjuiceFiltrationandrinsingCleanmembranewaterfluxFig.3.Waterfluxthrough0.37Fig.4.Effectofstoragetemperatureandtimeonturbidity.Fig.4.Effectofstoragetemp38Fig.5.EffectofstoragetemperatureandtimeonA420nm

.Fig.5.Effectofstoragetem39Fig.6.Effectofstoragetemperatureandtimeonflavanolcontent

.Fig.6.Effectofstoragetemp40CTJAAJ