Electrodeionization Plants

Lenntech can design, build and commission tailor-made and turnkey EDI plants.

Our EDI (electro deionization) plants are built with conventional plate-and-frame arrangement EDI modules capable of treating several flows, in order to produce demi or ultra-pure water from Reverse osmosis permeate or Ion exchange demi-plants.

Model reference Flow
LT-EDI-Polix-5 2-5 m3/h
LT-EDI-Polix-10 5-10 m3/h
LT-EDI-Polix-20 10-20 m3/h
LT-EDI-Polix-40 20-40 m3/h
LT-EDI-Polix-60 40-60 m3/h
LT-UEDI-Polix-100 60-100 m3/h


Please check Reference projects for more information on Lenntech built and running plants.

Our EDI plants include:
- Feed pump - EDI modules
- Resistivity probe
- Electrical valves and fittings
- Instrumentation
- Control panel

Any additional equipment can be added on request.

Lenntech can provide stand-alone EDI trains but also ‘’ all in one’’ turnkey demi water systems. These systems include the pre-treatment, Reverse Osmosis system and EDI-modules. All components can be operated with a single controller.

General design data for EDI Plants
Feed water max conductivity 40 µS/cm
Feed water max hardness < 1 ppm
Demi / ultra pure water quality 8-18 MΩ
Recovery 90-95%

For more information or quotation, please contact us: Feedback Form or call us on +31 152 610 900