GE水处理高回收率频繁倒极电渗析ED

GEElectrodialysisAnecomaginationcertifiedproductAnelectrochemicalseparationprocessinwhichionsaretransferredthroughionexchangemembranesbymeansofaDCvoltageAcontinuousself-cleaningelectrodialysisprocessbymeansofperiodicreversaloftheDCpolarity,switchingconcentratinganddilutingflowGESlideforPublicDistributionGE/IonicsEDRTimeline发展时间表–GEIntroducesRe-DesignedEDRPlatform1948-Ionicsdevelopsionexchangemembranes1970-Ionicsintroducesreversalprocessto19501960197019801954–EDTechnologyisdeveloped1997–IntroductionofIonicsEDR 4/GEBrackishWater（咸水脱盐GESlideforPublicTypicalApplications典型的应用DrinkingWater饮用水IndustrialProcessWater•Reductionoftotaldissolvedsolids工业工艺用水•Removalofnitrate,fluoride,arsenic,perchlorate,radium•ReduceTDSpriortoionexchangeMunicipalWastewaterReclaim•ForIndustrialMake-upWaterMassBalanceManagement•CreateIrrigationWatertoreduce全厂水平衡管理freshwaterstress•Concentrationofsalt,reducedisposalvolume•Reducemassfluxintoplant7/GE/ElectrolyticCell电驱元件SlideforPublicDistributionInasaltbathundertheinfluenceofdirectcurrent,thecations&anionsmigratetowardstheirrespectiveelectrode.Thisisthebasisforallelectrolyticdrivenprocesses.Cathode(-)FlowofElectronsNa+Cl-(+)AnodeGE/ElectrodialysisCathode(-)NaCation-TransferClDesalinatedProductClAnion-TransferMembraneCation-TransferAnode(+)GE/9/EDGEGEGEGEEDRGEGEStreamsintheEDRProcessEDRGESlideforPublicSaltRemovalOptimizationAdjustable60–97%脱盐率优化可调+++1+++STAGE2+++3+++STAGE460%84%94%97Addmorestackstomakebetterwater.Thisiscalled“staging”.分段设计得到更好产水17/GE/+++--+++++++--++++++------RecycletoConcentrateCompartmentSideSlideforPublicDistributionProductConcentrateBlowdowntoWasteGE/SlideforPublicROandEDR:IonRemovalROProductConcentrateEDRProduct19/GESlideforPublicROandEDR:EffectsofAntiscalantAddition阻垢剂添加示意ROProducttofullflowConcentrateEDRProduct20/GE/AntiscalanttoSlideforPublicROandEDR:EffectsofAcidAdditionCO2ROProductAcidtofullfeedCO2istransferredthroughROmembranestoproduct.ROProductpHisshiftedlower.ROrequiresdecarbonationinmanycases.EDRProductAcidisaddedtoisolatedconcentratestream.CO2isnotaddedtoproductwater.Decarbonationnotneeded.21/GE/AcidtoconcentrateEDRProductPlatformsEDR产品线GESlideforPublicMembraneStackAssembly膜堆装配CellPairMembraneStackGE/23/SlideforPublicDistributionEDREDRCellPairandStackAssemblyGE/24/EDRStandardProductCapacitySlideforPublicDistributionGEIntroducingtheNEWEDRSlideforPublicDistributionGECustomRectifier•Specialized•Manualtap•CoursevoltageincrementsSlideforPublicDistributionNewDCDriveCabinet•Offtheshelfitem,multiplevendors•Finecontrolof•ProgrammablesettingsbasedonconditionsGEEDRDesignGuidelinesEDR设计纲要GESlideforPublicDistributionEDRFeedWater进水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脱盐率SystemRecovery回收率FeedWaterTurbidity进水浊度ContinuousFeedFreeCl2持续游离氯OperatingPressure操作压力PowerConsumption电力消耗400–5,00050–95%85–94%SDI5<120.5mg/l<50psiLowerfor<2,500ppmTDSTypicalMembraneLife膜寿命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解决浓盐水问题有价值的解决方案•NeedslesspretreatmentRO：更少的预解决少•HigherwaterrecoveryhigherthanRO：回收率高•Useslesswater,createslessconcentrate：浓水少•Chlorinetolerant•EDRmembraneslast3xROmembranes：寿命长•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俄罗斯石油Nizhnekamsk,RussiaWaterScarcityAdisposalscarcityprojectTreat