GE水處理高回收率頻繁倒極電滲析ED

GEElectrodialysisAnecomaginationcertifiedproductAnelectrochemicalseparationprocessinwhichionsaretransferredthroughionexchangemembranesbymeansofaDCvoltageAcontinuousself-cleaningelectrodialysisprocessbymeansofperiodicreversaloftheDCpolarity,switchingconcentratinganddilutingflowGESlideforPublicDistributionGE/IonicsEDRTimeline發(fā)展時間表–GEIntroducesRe-DesignedEDRPlatform1948-Ionicsdevelopsionexchangemembranes1970-Ionicsintroducesreversalprocessto19501960197019801954–EDTechnologyisdeveloped1997–IntroductionofIonicsEDR 4/GEBrackishWater（咸水脫鹽GESlideforPublicTypicalApplications典型的應(yīng)用DrinkingWater飲用水IndustrialProcessWater?Reductionoftotaldissolvedsolids工業(yè)工藝用水?Removalofnitrate,fluoride,arsenic,perchlorate,radium?ReduceTDSpriortoionexchangeMunicipalWastewaterReclaim?ForIndustrialMake-upWaterMassBalanceManagement?CreateIrrigationWatertoreduce全廠水平衡管理freshwaterstress?Concentrationofsalt,reducedisposalvolume?Reducemassfluxintoplant7/GE/ElectrolyticCell電驅(qū)元件SlideforPublicDistributionInasaltbathundertheinfluenceofdirectcurrent,thecations&anionsmigratetowardstheirrespectiveelectrode.Thisisthebasisforallelectrolyticdrivenprocesses.Cathode(-)FlowofElectronsNa+Cl-(+)AnodeGE/ElectrodialysisCathode(-)NaCation-TransferClDesalinatedProductClAnion-TransferMembraneCation-TransferAnode(+)GE/9/EDGEGEGEGEEDRGEGEStreamsintheEDRProcessEDRGESlideforPublicSaltRemovalOptimizationAdjustable60–97%脫鹽率優(yōu)化可調(diào)+++1+++STAGE2+++3+++STAGE460%84%94%97Addmorestackstomakebetterwater.Thisiscalled“staging”.分段設(shè)計得到更好產(chǎn)水17/GE/+++--+++++++--++++++------RecycletoConcentrateCompartmentSideSlideforPublicDistributionProductConcentrateBlowdowntoWasteGE/SlideforPublicROandEDR:IonRemovalROProductConcentrateEDRProduct19/GESlideforPublicROandEDR:EffectsofAntiscalantAddition阻垢劑添加示意ROProducttofullflowConcentrateEDRProduct20/GE/AntiscalanttoSlideforPublicROandEDR:EffectsofAcidAdditionCO2ROProductAcidtofullfeedCO2istransferredthroughROmembranestoproduct.ROProductpHisshiftedlower.ROrequiresdecarbonationinmanycases.EDRProductAcidisaddedtoisolatedconcentratestream.CO2isnotaddedtoproductwater.Decarbonationnotneeded.21/GE/AcidtoconcentrateEDRProductPlatformsEDR產(chǎn)品線GESlideforPublicMembraneStackAssembly膜堆裝配CellPairMembraneStackGE/23/SlideforPublicDistributionEDREDRCellPairandStackAssemblyGE/24/EDRStandardProductCapacitySlideforPublicDistributionGEIntroducingtheNEWEDRSlideforPublicDistributionGECustomRectifier?Specialized?Manualtap?CoursevoltageincrementsSlideforPublicDistributionNewDCDriveCabinet?Offtheshelfitem,multiplevendors?Finecontrolof?ProgrammablesettingsbasedonconditionsGEEDRDesignGuidelinesEDR設(shè)計綱要GESlideforPublicDistributionEDRFeedWater進水FeedTDS200-5,000mg/lisNormalformostapplications5,000–10,000mg/lusingHighSalinitydesign(additionalstacks,largerDCdrives)FeedWaterDesign?Iron(dissolved)0.3?Manganese(dissolved)0.1?H2S0.1?Aluminum0.1?COD50mg/Las?TOC15?Oil2.0mg/L(IR?FreeChlorine0.5mg/L30mg/Lcleaning?Turbidity0.5NTU2.0NTU?SDI510-GEEDRvs.ROComparisonCriteria要素FeedTDS(mg/l)SaltRemoval脫鹽率SystemRecovery回收率FeedWaterTurbidity進水濁度ContinuousFeedFreeCl2持續(xù)游離氯OperatingPressure操作壓力PowerConsumption電力消耗400–5,00050–95%85–94%SDI5<120.5mg/l<50psiLowerfor<2,500ppmTDSTypicalMembraneLife膜壽命SilicaRemoval硅去除SilicainConcentrate10–15yearsSlideforPublic100–15,00090–99%50–80%SDI15<50mg/l(TFC)>100psiLowerfor>2,500TDS3–5years90–97%250EDRFeaturesandBenefitsPolarityReversalallowshighwaterrecovery,andlowchemicalHighwaterrecoveryreducesdemandonscarceresourcesLowconcentratevolumeeasiertodisposeRuggednatureofmembranespermitmoderateSDIsTolerancetochlorineresidualcontrolsbiofouling31/GESlideforPublicDistribution?EDRisvaluablesolutiontosolvebrackishwatersituations.EDR解決濃鹽水問題有價值的解決方案?NeedslesspretreatmentRO：更少的預(yù)解決少?HigherwaterrecoveryhigherthanRO：回收率高?Useslesswater,createslessconcentrate：濃水少?Chlorinetolerant?EDRmembraneslast3xROmembranes：壽命長?Self-cleaningpolarityreversalreduceschemicaluse,cleaningfrequencyandincreaseson-line32/GECaseStudiesGEEDRforRefineryWWReclaimingnotnewSTANICIndustriaPetroliferaofLivorno200m3/hrFeedCOD50-100mg/L,88%TDS,1500mg/L,SaltRemovalby92%34/GEFt.Irwin,USArmy,California,USAReductionofArsenicandFluorideWaterScarcity?ArsenicandfluoridelevelsexceedingUSEPAdrinkingwaterMaximumContaminantLevels(MCLs)?Aremotedesertlocation?Non-regenerableaquifer?Liquiddisposalchallenges?EDRchosenduetosilicatolerance(100mg/lwellwater)andhighwaterrecoveryoperation?PilotplantdemonstrationofEDRtoreducearsenicandfluoride.DemonstratedhighwaterrecoveryEDRdesign.?FullplantdesignwillincludeEDR,ROandthermalevaporation.?7MGDEDR?EDRdesignedat92%waterrecovery?EDRchosenforchlorineresistanceandlowpretreatmentrequirement?EDRwasteisconcentratedwithROandfalling-filmevaporationtoachieve99.7%waterrecovery?Facilitycommissioningof tomeetUSEPAdirectiveSlideforPublicDistributionFinishedWaterTankEvaporationPond35/GEWater&ProcessLocation:Nizhnekamsk,Tatarstan,RussianFederationINVENTofficeCustomer:INVENT+RDI=EPCGEEnergyofficeJobsiteDesigninstitute(RDI)37/GE/Introduction–generalarrangementCONTRACTUALSCOPE:3x16.800m3/dayADF;3x19.200MDFcapacityIndustrialWasteWaterTreatmentplantforNizhnekamskgreenfieldRefinery,consistingofMBRI;MBRII/1andMBRII/2aswellas5pcsofEDRGEEDR-8L-4S;2pcsofSWRO-84-35K-PRE-50Hz,CIPdosingsystemsforEDR+ROandchemicals.Fullprocessincl.biology,Basicanddatasupplyengineeringdesign,looseshippedequipmentsupplyfortheentireplant,includingMCC,pneumaticandPLCsupply,38/installationsupervisionandcommissioning.ProjectissplittoPhase1andPhase2.GE/TheTANECOGreenFieldOilrefinerysite,indicatingtheInventwaterprojectinGreen.GESlideforPublicDistributionTatneftTanecoRefinery俄羅斯石油Nizhnekamsk,RussiaWaterScarcityAdisposalscarcityprojectTreat