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Ion Specific Exchange
Membranes inElectrochemical Water TreatmentKyle KrygerKyle Kryger
Jim Baygents, Ph.D.Jim Baygents, Ph.D.Associate Dean, College of EngineeringAssociate Dean, College of Engineering
University of ArizonaUniversity of Arizona Jim Farrell, Ph.D.Jim Farrell, Ph.D.
Professor, Department of Chemical andProfessor, Department of Chemical and Environmental Engineering, University of ArizonaEnvironmental Engineering, University of Arizona
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OverviewOverview BackgroundBackground
What is electrochemical water treatment?What is electrochemical water treatment? Why are ion selective membranes Why are ion selective membranes
needed?needed? MethodsMethods ResultsResults Next stepsNext steps Conclusion & QuestionsConclusion & Questions
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Electrochemical Water Electrochemical Water TreatmentTreatment
Electrochemical Cell
Feed Water
Ion Exchange Column
AnodeCathode
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Electrochemical CellElectrochemical Cell
H+
H+
H+
H+
H+
H+
H+
H+
H+
H+
H+
H+
H+H
+
H+
H+
H+
H+
H+
OH-
OH-
OH-
OH-
OH-
OH-OH-
A+
A+
A+
A+
A+
A+
C-
C-
C-
C-
C-
C-
Creation of Creation of Acids / BasesAcids / Bases
Movement ofMovement ofIonsIons
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MethodsMethods Selection of base membraneSelection of base membrane
Polystyrene/DivinylbenzenePolystyrene/Divinylbenzene EconomicsEconomics Mechanical StrengthMechanical Strength
FunctionalizationFunctionalization Chlorosulfonic AcidChlorosulfonic Acid Permanent ChargePermanent Charge
Image courtesy of Biotage
Image courtesy of Wikipedia
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AchievementsAchievements Base MembraneBase Membrane
Chemical PreparationChemical Preparation 64% of pores filled64% of pores filled Established Electrical contactEstablished Electrical contact
across membrane.across membrane. FunctionalizationFunctionalization
Safe ProcedureSafe Procedure Positive ReactionPositive Reaction
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Next StepsNext Steps Performance of Functionalized Performance of Functionalized
MembraneMembrane Diffusion of Ions / ICPDiffusion of Ions / ICP
Scaling up manufacturing ProcessScaling up manufacturing Process Chemical HandlingChemical Handling Large Scale ProductionLarge Scale Production
ImplementationImplementation ImpactImpact
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Thank you for attending!Thank you for attending!Questions?Questions?