Flex EDR

Electrodialysis Reversal System

Flex EDR 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. 

Built 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.
Flex EDR Electrodialysis Reversal Stack Inside a Saltworks Technologies Pilot Plant
  • 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.
  • 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.

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Flex EDR Related Resources

Flex EDR stack

Flex EDR Selective

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

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Flex EDR Organix

Request More Information Download Spec Sheet Flex EDR Organix desalinates wastewater and produced water with high concentrations of organics, removing the need for extensive pretreatment. Remove Salt in the Presence

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