海水淡化设计-海德能(奥大利亚)_英文

1DesignConsiderationsforSeawaterROPlantsPresentedbyKeithAndesPacificRimTechnicalManager-Hydranautics2SWROPlantDesignConsiderations1.MF/UForConventionalPretreatment?2.HighorLowFluxDesign?3.8”versus16”4.ChoiceofSWROMembrane5.AdvantagesofusingaVFD6.SplitPartialDesign7.BoronSpecifications8.LoadingSchedule9.HybridDesign10.OtherItems3PretreatmentMF/UForConventional?4IMSPLANT:ULTRAFILTRATION+RO5SWROPre-Treatment–EstimatedOperationalCostComparisonUF/MFDMF’sCostofChemicals14.26%16.23%CostofPower76.98%81.51%UFMembrane/MediaCost(over7years)5.7%CartridgeFiltersReplacement-0.91%SWROMembranesCosts0.91%1.36%7YearsCosts97.85%100.0%6050100150200250300123456AmountofFoulantvsSDISDIFoulant,mg7SWROPlant:UFTreatedWaterQuality0.00.51.01.52.02.53.03.54.04.55.05.56.01-Jan-0711-Jan-0721-Jan-0731-Jan-0710-Feb-072-Mar-0712-Mar-0722-Mar-07DateSDI15UFInletSDIUFOutletSDI8HighFluxorLowFluxDesign?9BenefitofHigherROFlux:ProjectedpermeatesalinityforMediterraneanfeed,28C25030035040045050055060065035404550556065Recoveryrate,%Permeatesalinity,ppmTDS11gfd10gfd8gfdHigherROflux=betterwaterquality10Electricpower-44%Fixedcharges-37%Membranereplacement-5%Labor-4%Maintenance&parts-7%Consumables-3%Totalwatercostdistribution11PowerConsumptioninSWROPlant128Inchor16InchMembranes?13MarketLeadingTechnology:New16inchelements1416x40SWC3DemonstrationTestonPacificSeawaterHYDRANAUTICSFluxGrahamTek163-VesselROENDPORTDesalinationPlantPretreatment:2-StageSandFiltration+Cartridge68101214161820222400000100020003000400050006000700OperatingTime,hoursFlux,gfdStage1FluxStage2FluxOverallFluxAv.Stage1Flux=18.9gfdPSASuperFluxRO-1(4-in-1)Membrane:HYDRANAUTICSSWC31640(16x40)ActiveSurfaceArea:1300sqftROSystemDesign:2-Stage2:1PVElementsperVessel:4nosOperatingtime:0594hrs.Todate:Dec.3,2006Av.Stage2Flux=10.3gfdAv.OverallFlux=16.0gfd1516x40SWC3DemonstrationTestonPacificSeawaterHYDRANAUTICSProductConductivityGrahamTek163-VesselROENDPORTDesalinationPlantPretreatment:2-StageSandFiltration+Cartridge-5,00010,00015,00020,00025,00030,00035,00040,00045,00050,0000100200300400500600OperatingTime,hoursFeedConductivity,μS/cm01002003004005006007008009001000PermConductivity,uS/cmFeedOverallProductConductivityPSASuperFluxRO-1(4-in-1)Membrane:HYDRANAUTICSSWC31640(16x40)ActiveSurfaceArea:1300sqftROSystemDesign:2-Stage2:1PVElementsperVessel:4nosOperatingtime:0594hrs.Todate:Dec.3,2006Av.OverallProductConductivity=386μS/cm16SWROMembraneSelection17SWROElementComparison(34,000mg/lTDS,4MGD/Train,50%Rec,25C,8MPV)819750775181372243500550600650700750800850900SWC4+SWC5SWC6ElementTypePressure(psi)050100150200250300350400PermeateSalinity(mg/l)PresspsiTDSmg/lLowerFlowSWC4+MidFlowSWC5HigherFlowSWC618SPECIFICATIONSHEETSHighFlow,LowEnergySWRO19AffordableDesalinationCollaborationReportfindsSWC5thebestSWROMembrane20SWC5MaxPrecisecontrolofelementconstructiontoproduce440ft2(40.9m2)elementsSamefeedspacerasconventional400ft2(37.2m2)elementSamepermeatespacerasconventional400ft2(37.2m2)elementSamerejectionasconventional400ft2(37.2m2)element21AutomatedGlueLineControlandExactConstructionAllowsMaximumSurfaceAreaLW22AdvantagesofusingaVFDEnergysavingsduetobeingableto“slowdown”thepumpswhenpossibleRegulatingrampuppressuresavoids“waterhammer”onmembranesAbletorunathighservicerates(110%to120%forshort-termifrequired)23SplitPartialDesign24MediterraneanSeawaterPlantSplitPartialDesign6Trainswith120Vessels/TrainNearly5YearsofOperationFeedROFeed:840m3/hrpertrain(5.4mgd)40,000mg/lTDS6TrainsSWC380%ofProduct300mg/LTDS1mg/LBConcentrateESPA2/CPA320%ofProduct50%Recovery8MVessels78%Recovery8MVesselsHighSalinityPermeate1100ppm25BoronSpecifications?26BoronIssuesandHydranauticsSolutionsOperationathighfeedpH-HydranauticspatentDevelopmentofnewhighrejectionmembranesforBoronremoval27BoronRejvspHBoronSimulator(v7.5)BrejvspHforSWCat15gfd(32000ppmand5ppmB)8688909294969810056789101112pHRejSWC3SWC4+RGASWC3@16gfdRGASWC4@15gfd28LoadingSchedule●Elementsmustbewet-testedatfactory●Elementsaretypicallywithin+/-15%ofnominalflow●Loadingoflowerflowelementsinleadpositionslowerstheleadelementfluxratesandlowersfoulingpotential●Loadingofhigherflowelementsintailpositionsraisesfluxratesfromtailelements(wherefeedpressureislowestandfeedsalinityishighest)29TypicalPermeateFluxDistributionina8MSWROPressureVesselStgElemFeedPresPermPermBetano.presdropflowFluxbarbarm3/hrlm2hr1-1155.00.31.025.71.121-1254.70.20.820.31.111-1354.50.20.615.61.091-1454.30.20.412.01.071-1554.20.10.39.31.051-1654.00.10.26.51.041-1753.90.10.24.91.031-1853.70.10.13.51.0330TypicalPermeateFluxDistributionwithSWROElementsLoadedbyFlowStgElemFeedPresPermPermBetano.presdropflowFluxbarbarm3/hrlm2hr1-1155.00.30.921.91.121-1254.70.20.718.31.111-1354.50.20.615.11.091-1454.30.20.512.21.071-1554.20.10.410.41.051-1654.00.10.38.91.041-1753.90.10.27.51.031-1853.70.10.26.21.0331HybridDesign●Usingdifferenttypesofmembraneswithinapressurevessel●Itisusedtobalanceoutthemembranefluxrates(similartoloadscheduling)●SomecustomersprefertokeeponlyonetypeofmembraneintheROsystem32OtherItems•ReverseFlushing/CleaningCapability•Dua