Pratt & Whitney
Continuous Electrodeionization (CEDI) is the process of removing ionized or ionizable substances from water using ion exchange membranes, electrically active media (typically ion exchange resin), and a DC electric potential.
As the truly the only chemical-free method of producing high purity deionized water, the benefits of using electrodeionization are:
Continuous operation, no downtime for regenerations
Only true chemical-free process, no brine injection required
One pass operation, no need for concentrate recirculation
Guaranteed leak free