Veolia MK-5 EDI Module (Previously E-CELL-3X) For Semiconductor Industries
The Veolia E-Cell MK-5 Electrodeionization (EDI) Module is designed for continuous, chemical-free production of high-purity water, delivering flows up to 5 m³/h (22 GPM) with resistivity ≥16 MΩ·cm and silica removal to ≤5 ppb. Ideal for boiler feedwater in power plants and ultrapure water applications in semiconductors, microelectronics, and pharmaceuticals, it operates at up to 97% recovery without acid/caustic regeneration. The module features a compact design (30x61x72 cm), hot-water sanitization capability, and compliance with CE, RoHS, and ISO 9001/14001 standards. Its robust construction ensures low maintenance and stable performance under varying feedwater conditions, supported by Veolia’s global technical expertise
| Attribute | Value |
|---|---|
| Minimum pressure difference between dilute outlet and concentrate inlet (bar) | 0.34 |
| Dilute inlet/outlet standard pressure drop (bar) | 1.4-2.8 |
| Inlet pressure (bar) | Counter-current: 4.1-6.9 Co-current: 3.1-6.9 |
| Amperage (ADC) | 0-5.2 |
| Voltage (VDC) | 0-400 |
| Recovery | up to 97% |
| Designed water production (m3/hr) | 4.0-6.4 |
| Nominal Flow | 5.0 m3/h (22 gpm) |
| MK-5 Application | Boiler Feedwater In Power Plants |

Veolia's E-Cell ® EDI (Electrodeionization) technology represents the gold standard in continuous demineralization, offering a chemical-free, high-efficiency alternative to traditional mixed-bed ion exchange. Designed for industries requiring ultra-pure water, Veolia EDI stacks combine ion-exchange resins and selective membranes with direct current to remove contaminants—including silica and boron—without regeneration chemicals.
- Zero Chemical Regeneration - Eliminates acid/caustic handling, reducing operational costs and safety risks.
- Consistent High Purity - Produces water with > 16 MΩ*cm resistivity and < 5 ppb silica, meeting stringent standards for semiconductor, pharmaceutical, and power industries.
- Energy-Efficient Design - Patented resin configuration and counter-current operation minimize power consumption and scaling risks.
- Modular & Scalable - Available in MK-3, MK-5, and MK-9 stacks, supporting flows from 1.6 to 10 m³/h with up to 97% recovery.
- Validated Reliability - CE, FDA, and Halal certified, manufactured in ISO 9001/14001 facilities with 85 °C hot-water sanitization options (PharmHT series).
- Microelectronics: Ultrapure rinse water for semiconductor fabrication.
- Pharmaceutical: USP/EP-compliant purified water.
- Power Generation: High-purity boiler feedwater.
- Industrial Processes: Steel, chemical, and LNG plant demineralization.
Backed by Veolia's performance guarantees and global technical support, E-Cell EDI delivers sustainable, low-maintenance pure water solutions.

The water produced by the E-Cell-3X reliably meets today's most demanding ultrapure water applications, including but not limited to:
- Ultrapure water for rinsing semiconductor chips, solar panels, and other microelectronic devices.
- Demineralized feed water for high-pressure boilers in power plants and other heavy industrial sites.
- Ultrapure water for green hydrogen generation in electrolyzers.
To simplify design and enhance your confidence in EDI applications, we offer E-Cell performance predictions and guarantees, which are available through Winflows* software or by contacting us.
| Parameter | Value |
|---|---|
| Brand | Veolia EDI |
| Exchangeable ppm | 65.0 |
| Inlet Pressure bar | 6.9 |
| Inlet Pressure psi | 100 |
| Type of Stack | E-Cell 3X |
| Max Temperature °C | 40 |
| Max Temperature °F | 104 |
| Pressure drop bar | 1,4-2,8 |
| Pressure drop psi | 20-40 |
| Recovery % | up to 97 % |
| Flow m3/h | 2,3-6,4 |
| Flow rate gpm/ft2 | 10-28 |
| Power voltage V | 0-400 VDC |
| Shipping Weight kg | 165 |
| Shipping Weight lbs | 364 |
| Application | Ultrapure water, Boiler feed water |
| Parameter | Value |
|---|---|
| Nominal Flow | 5.0 m3/h (22 gpm) |
| Flow Rate Range | 2.3-6.4 m3/h (10-28 gpm) |
| Shipping Weight | 165 kg (364 lbs) |
| Dimensions (width x height x depth) | 30 cm x 61 cm x 72cm 12'' x 24" x 29" |
| Parameter | Value |
|---|---|
| Resistivity | ≥ 16 MOhm-cm |
| Sodium | ≤ 3 ppb |
| Silica (SiO2) | As low as 5 ppb |
| Boron | As low as 0.08 ppb |
| Parameter | Efficiency |
|---|---|
| Sodium | ≥ 99.9% removal |
| Silica (SiO2) | Up to 99% removal |
| Boron | Up to 96% removal |
| Parameter | Value |
|---|---|
| Recovery | Up to 97% |
| Voltage | 0-400 VDC |
| Amperage | 0-5.2 ADC |
| Inlet Pressure Note 2 | ≤ 6.9 bar (100 psi) |
| Pressure Drop Note 3 | 1.4-2.8 bar (20-40 psi) |
| Parameter | Value |
|---|---|
| Total Exchangeable Anions (TEA as CaCO3) Note 5 | ≤ 65 ppm |
| Conductivity Equivalent | ≤ 112 μS/cm |
| Temperature | 4.4-40˚C (40-104˚F) |
| Total Hardness (as CaCO3) Note 6 | ≤ 1.0 ppm |
| Silica (SiO2) Note 7 | ≤ 1.0 ppm |
| Total Organic Carbon (TOC as C) | ≤ 0.5 ppm |
| Total Chlorine | ≤ 0.05 ppm |
| Fe, Mn, H2S | ≤ 0.01 ppm |
| Boron Note 8 | ≤ 1.0 ppm |
| pH | 4 to 11 |
| Oil & Grease | None detectable |
| Particulate Note 9 | RO permeate |
| Oxidizing Agents | None detectable |
| Color Note 10 | ≤ 5 APHA |

| E-Cell EDI Stack | Nominal Stack Flow Rate | Typical New-Build Applications |
|---|---|---|
| MK-9 | 8.0 m3/h (35 gpm) |
|
| MK-5 | 5.0 m3/h (22 gpm) |
|
| MK-3 | 3.4 m3/h (15 gpm) |
|
| MK-3pharmHT | 3.4 m3/h (15 gpm) |
|
| MK-3MiniHT | 1.14 m3/h (5 gpm) |
|
- CE, RoHS, CSA, and EAC Marks
- Made in an ISO 9001 and ISO 14001 compliant facility
- UKCA Certified
- E-Cell-3X Stacks are Halal certified by the Islamic Food and Nutrition Council of America (IFANCA®)

E-Cell EDI technology has been successfully applied in various industries such as power, petroleum, chemical, steel, pharmaceutical, and electronics.
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