Electrodialysis reversal system

FlexEDR is an advanced electrodialysis reversal (EDR) system, leveraging our next generation ion exchange membranes. It requires less pre-treatment, tolerates oils and organics, selectively removes ions and uses fewer chemicals. 
EDR electrodialysis stack icon



Water reuse



Selective Removal Target



reverse osmosis RO



For the Most Rugged Applications

  • Built with our robust, highly ductile IonFlux ion exchange membranes.
  • Intelligent automation self-cleans and maintains peak performance.
  • Modular skids for easy deployment and project integration.
  • Less pre-treatment: operate with oils, organics, particles < 20 μm
  • No chemical softening: patented electrode protection blocks hardness out of EDR electrolyte, so you do not need to remove it before treatment.
FlexEDR Electrodialysis Reversal Stack Inside a Saltworks Technologies Pilot Plant

FlexEDR Organix:

Desalt Organic Wastewater & Produced Water

  • Treat oily wastewaters that swell conventional membranes with our next-generation IonFlux membranes.
  • Reduce the need for complex pre-treatment when you only need to remove salt.
  • Remove more oil and lower consumption of polymers in enhanced oil recovery (EOR) by desalinating produced water.

FlexEDR Selective:

Remove Ions with Game-Changing Selectivity

  • Conventional EDR pulls all ions across ion exchange membranes under an electric field, without membrane pressure differential.
  • Remove specific ions using state-of-the-art ion exchange membranes with 98% monovalent ionic selectivity (i.e. remove lithium, separate chlorides from sulfates).
  • Change brine chemistry without softening to reach the full potential of your RO system and wring out even more freshwater for beneficial reuse.
  • Concentrate brine to low volumes with membranes – territory previously reserved for evaporative systems.
FlexEDR Stack

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FlexEDR Applications

  • Agriculture
  • Automotive
  • Brine Management
  • Chemical Extraction
  • Cooling Tower Blowdown
  • Electrochemical Separations
  • Electrochemical Softening
  • Factory Wastewater
  • Flue Gas Desulfurization
  • Food & Beverage
  • Landfills
  • Lithium Extraction & Refining
  • Microelectronics
  • Minimal & Zero Liquid Discharge
  • Mining & Metals
  • Municipal & Wastewater Reuse
  • Oil & Gas
  • Petrochemical & Refining
  • Pharmaceutical
  • Power Generation
  • Process Optimization
  • Pulp & Paper
  • Remediation
  • Scale Removal

FlexEDR Related Resources

FlexEDR stack

FlexEDR Selective

Request More Information Download Spec Sheet FlexEDR Selective allows you to selectively remove ions and change water chemistry. Achieved by using modernized electrodialysis reversal (EDR) with highly selective ion exchange

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Saltworks FlexEDR Electrodialysis Reversal Stack standing upright.

FlexEDR Organix

Request More Information Download Spec Sheet FlexEDR Organix desalinates wastewater and produced water with high concentrations of organics, removing the need for extensive pretreatment. ADVANCED ELECTRODIALYSIS REVERSAL WASTEWATER  REUSE TREAT

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