Electrodialysis (ED) and Bipolar Electrodialysis (BPED)



GE’s Electromat Electrodialysis and Bipolar Electrodialysis systems focus on improving customer processes for whey demineralization, wine and juice stabilization, glycol recovery at refineries, glycerine desalting, and many other applications. Our history in ED started in 1959 when Ionics with Wyeth & Foremost developed and installed the first Whey ED production system. (GE purchased Ionics in 2005.)

GE continued to develop the ED technology for process applications and water desalination over the course of six decades. Today with more than 50 years of industry experience, our flexible systems operate in a wide range of conditions, in continuous or batch modes, while generating less salt waste than conventional technologies. Our systems come fully packaged and skid mounted for fast installation, easy start-up, and trouble-free operation. Sophisticated controls let you choose precisely the water quality you need.

What is ED?
Electrodialysis is an electrochemical separation process in which ions are transferred through selective ion exchange membranes from one solution to another by means of a DC voltage.

What is BPED?
It is an ion-exchange membrane process that uses a bipolar membrane to split water into H+ and OH-, generating acid and caustic streams. This process is used to adjust the pH of a solution without adding bases or acids.

Applications

Whey Demineralization
Glycerine Desalting
Wine and Grape Juice
Glycol and Amine
Purification of lactose, lactulose, and galactose
Demineralization of nonfat milk
Corn syrup/sugar
Organic acid production
Converting salt into strong acids/bases
Surfactants
Pharmaceutical solutions
Hydrolyzed proteins

Benefits To You
Higher product recovery rates
Reduced waste
Greater profitability from existing processes

Supporting Documentation

ED/BPED Overview Brochure
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