Ionics' EDR Technology Offers High Water Recovery For Brackish Water Desalting

Watertown, MA - Ionics, Incorporated, a global leader in water purification and wastewater treatment, provides electrodialysis reversal (EDR) systems for a range of municipal applications.

The EDR process uses DC voltage to transfer ionic species from the feed water through ion exchange membranes to a concentrate stream, creating a more dilute stream. The polarity of the DC voltage is reversed several times per hour. The alternating exposure of membrane surfaces to the dilute and concentrate streams provides a self-cleaning capability that enables purification and recovery of up to 94% of the feed water as product.

EDR applications include desalination of brackish ground and surface waters and removal of specific ions such as arsenic, radium and nitrates. In addition, EDR is used to desalt secondary-treated municipal effluent for irrigation and other non-potable uses.

Ionics offers the AQUAMITE® family of skid-mounted EDR systems and the Ionics EDR 2020® system that can be customized for larger capacity installations.

About Ionics, Incorporated
Ionics is a global leader in water purification and wastewater treatment. The Company has over 50 years of experience in the design, installation, operation and maintenance of water and wastewater treatment systems and is a leading provider of emergency and long-term water treatment services. More membrane-based desalination systems have been designed and built by Ionics than any other supplier worldwide. Ionics is also a leader in supplying zero-liquid-discharge systems, in providing ultrapure water systems for the power and microelectronics industries, and in the measurement and analysis of water impurities. The Company also supplies Point-of-Use and Point-of-Entry water treatment systems for commercial and residential applications. For more information visit www.ionics.com.

Source: Ionics, Inc.