04 物理化学处理法-膜分离.pptx

第1页：物理化学处理法膜分离封面

物理化学处理法膜分离

第2页：常规物理化学处理流程

Conventional:Physical-chemicalProcessRawWaterRapidMixCoagulation/FlocculationSedimentationFiltrationDisinfectionDisinfectionAdditionCoagulantAdditionResidualDisinfectionAdditionToDistribution1Dis

第3页：膜法处理工艺流程

MembraneModuleToDistributionResidualDisinfectionAdditionDisinfectionPermeateTankSmallareaRawWaterRawWaterTankEasytooperate2MembraneProcess

第4页：膜法与常规工艺对比图

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第5页：膜的定义

IDEALMEMBRANEPermeateFeedDrivingForceREALMEMBRANEPhase1Phase2DefinitionofamembraneAmembranecanbedefinedasabarrier(notnecessarilysolid)thatseparatestwophasesasaselectivewalltothemasstransfer,makingtheseparationofthecomponentsinamixturepossible.4

第6页：膜性能评价指标

• EvaluationofMembranePerformance
• Selectivity:
• WaterRecovery:QP/QFQc,CcQF,CFQPCPCFandCparesoluteconcentrationinfeedandpermeateR=100%(completeretention)ofsoluteR=0%(soluteandsolventpassthroughmembrane)RCF-CP1-CPCFCF1-CPCF5RCF-CPCF

第7页：膜过程的驱动力分类

∆E∆T∆c∆PElectrodialysisThermo-osmosisPervaporationMicrofiltrationElectro-osmosisMembranedistillationGasseparationUltrafiltrationMembraneelectrolysisVapourpermeationNanofiltrationDialysisReverseosmosisDiffusiondialysisAdrivingforcecanmakethemasstransferthroughthemembranepossible;usually,thedrivingforcecanbeapressuredifference(∆P),aconcentrationdifference(∆c),anelectricalpotentialdifference(∆E).Membranescanbeclassifiedaccordingtheirdrivingforces:6DrivingForces

第8页：膜过程分类示意图

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第9页：微滤MF

WaterpassesSaltspassMacromoleculespassSolidParticlesreturnMicrofiltrationTypicalRetentatesSolidsKaolin,silica,yeast,bacteria，‘mud’,granularstarch,pigments8NominalPoreSize:0.1um

第10页：超滤UF

UltrafiltrationSaltspassWaterpassesMacromoleculesreturnSolidparticlesreturnTypicalRetentatesMacromoleculesproteins,polyvinylalcohol,gelatinizedstarch,pectin,disperseddyes9NominalPoreSize:0.01um20000MWCO

第11页：纳滤NF

NanofiltrationSomesaltspasssomereturnWaterpassesMacromoleculesreturnSolidparticlesreturnTypicalRetentatesSalts(smallmolecules)sodiumnitrate,sugar,solubledyes,aminoacid10NominalPoreSize:250MWCO

第12页：反渗透RO

SaltsreturnWaterpassesMacromoleculesreturnSolidparticlesreturnReverseOsmosisTypicalRetentatesDissolvedionssodium,chloride,macromolecules11

第13页：膜的形状

MembraneShapeFlatmembraneTubemembraneHollowfibermembrane12

第14页：膜材料

MembraneMaterials1.PolymericmembranesPhaseinversion2.CeramicmembranesStretchingTrack-etchingAnodec,anodicoxidationUSFilter,sintering(surface)(crosssection,upperpart)13MF

第15页：膜的形态与结构

crosssectionsurfaceSymmetricceramicmembrane(Al2O3)MembraneMorphologyorStructureTheactivelayerissupportedovertheporouslayer.Theactivelayerissupportedovertheporouslayer.Cross-sectionofanasymmetricPSmembraneThecrosssectionshowsauniformandregularstructure14

第16页：立升超滤膜案例

AcasedescriptionofUFmembraneUFmembranefromLitreeCompany15Micro-structureAsinglemembraneMembranemoduleinlab-scaleMembranemoduleinfull-scale

第17页：超滤膜微观结构SEM

AcasedescriptionofUFmembraneMicrostructure(SEM)Internalsurface16Internalcross-section

第18页：超滤膜微观结构AFM

AcasedescriptionofUFmembraneMicrostructureAFM17

第19页：超滤膜组件的三级尺度

AcasedescriptionofUFmembraneAsinglemembraneMembranemoduleinlab-scaleMembranemoduleinfull-scale18

第20页：膜系统

AcasedescriptionofUFmembraneMembranesystem19

第21页：膜工艺

AcasedescriptionofUFmembraneMembraneprocess20

第22页：膜污染与通量衰减

AcasedescriptionofUFmembranetime,tflow,JRpRaRmRgRcpporousmembranegellayermPRRcJMembranefouling21

第23页：膜污染控制方法

permeatepermeatepermeatepermeateJtRestorablefluxwithphysicalcleaningIrreversiblefoulingstartingpointsMethodstoreducefoulingAcasedescriptionofUFmembraneflushingbackwashingFlushing-backwashingpermeatepermeate22

第24页：UF与RO制备纯水

UF&ROforPureWaterAcasedescriptionofUFmembrane23

第25页：自来水超滤系统

TapWaterUFSystem24FiltrateAcasedescriptionofUFmembrane

第26页：反渗透系统

AcasedescriptionofUFmembraneROSystem25

第27页：UF与RO纯水制备流程

AcasedescriptionofUFmembrane26UF&ROforPureWater

第28页：电镀废水回用膜工艺

UF&ROforReuseofElectroplantingWastewaterAcasedescriptionofUFmembrane27

第29页：电镀废水回用工程实例

AcasedescriptionofUFmembrane28UF&ROforReuseofElectroplantingWastewater

第30页：地表水超滤系统

AcasedescriptionofUFmembrane29UFsystemforsurfacewatertreatment

第31页：地表水超滤系统流程图

VFD2CV10CV3CV4CV6CV9CV1PermeatetankRawwatertank10%FeCl3P1UMFIBVBPRVFD1YPRRawwaterLSLSFTFIPILSPTPITMPIPIFTCMPHTMTIPIPTSVCV2LSLSLSP2P4P3CV7LSChemicalcleaningtankCV8CV5VFD310%NaClO30%-45%NaOH35%HClAcasedescriptionofUFmembraneUFsystemforsurfacewatertreatment30

第32页：Questions提问页

Questions?31