Electrodialysis reversal

Electrodialysis reversal

EDR desalination is an electrodialysis reversal desalination membrane process that has been commercially used since the early 1960s. An electric current migrates dissolved salt ions, including fluorides, nitrates and sulfates, through an electrodialysis stack consisting of alternating layers of cationic and anionic ion exchange membranes. Periodically, the direction of ion flow is reversed by reversing the polarity applied electric current.

ee also

*Reverse electrodialysis (RED)

Links and References

* [http://www.usace.army.mil/publications/armytm/tm5-813-8/c-7.pdf U.S. Army Corps of Engineers Technical Manual]
* [http://www.americancityandcounty.com/mag/government_water_issues_prompt/ Article: Water issues prompt new look at desalination]
* [http://www.gewater.com/products/equipment/ed_edr_edi/edr.jsp GE: Electrodialysis reversal (EDR)]


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