Pratt & Whitney Aircraft Engine Maintenance (Shanghai), China

DI water

YEAR

2010

CLIENT

Pratt & Whitney

FEED WATER

RO Permeate

APPLICATION

>16MΩ-cm

SYSTEM

CEDI

STATUS

Completed



Typically > 16 MΩ-cm product water resistivity.
Final polishing is performed through the use of a continuous electrodeionization (CEDI) system.

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


Time is money.
Therefore, you cannot afford to shut down operations to have your DI bottles exchanged.