Electrodionization Modules

EDI Electrodeionization Modules can be used in place of conventional mixed bed ion exchange for polishing of reverse osmosis (RO) permeate with a continuous, chemical-free system. With electricity as its only consumable, EDI Modules do not generate a hazardous waste stream and they also eliminate the need to store and handle hazardous chemicals that would be necessary to regenerate mixed bed resins.


EDI-310 Modules are made using a patented spiral wound design containing membrane and ion exchange resins sealed in a high-strength fiberglass reinforced plastic (FRP) pressure vessel. EDI-310 Modules optimize performance, maintain continuous product quality and can produce up to 18 megohm-cm product water for high purity and ultrapure industrial water applications.

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Used In:

  • Polishing of pure water
  • Semiconductor manufacturing
  • Power generation make-up water systems


    Continuous high-purity product water 
    No chemical storage and handling 
    Consistent operation


  • Asia Pacific
  • Europe
  • Latin America
  • North America