Veolia E-Cell MK-5D EDI Stack – New Model, 10 m³/h Nominal Flow for Industrial Ultrapure Water

1. Product Overview

The Veolia E-Cell MK-5D is a continuous electrodeionization (EDI) stack designed to produce ultrapure water for industrial applications. Using electrical current to regenerate the ion exchange media continuously, it eliminates the need for acid or caustic regeneration of the resin within the stack.

With a nominal flow of 10.0 m³/h and a flow range of 4.5–15.6 m³/h, the MK-5D supports applications including power generation, solar panel production, microelectronics rinsing, and green hydrogen generation.

The stack operates without brine injection or concentrate recirculation. Its counter-current design helps minimize cleaning requirements when operating at higher allowable feed water hardness levels.

2. PRODUCT SPECIFICATIONS

General Specifications

Product Water Quality and Removal Performance

Performance note: Actual product water quality depends on feed water quality and operating conditions. Expected performance and applicable guarantees must be verified using the Winflows Design Simulator or confirmed by Veolia. Boron and other specific guarantees require separate confirmation.

Quality Assurance

• cCSAus marked and CE compliant.

• Manufactured in an ISO 9001 and ISO 14001 certified facility.

• Halal certified by the Islamic Food and Nutrition Council of America (IFANCA®).

3. OPERATING PARAMETERS

Stack Operating Conditions

Inlet pressure depends on downstream product and concentrate pressure requirements, the flow configuration, and stack pressure drop. Operating conditions must be checked for the specific system design.

Feed Water Requirements

Feed water design notes

1. TEA: Includes contributions from all feed water anions, including OH⁻, CO₂, and SiO₂. The stated limit applies at minimum flow and maximum temperature; suitability must be verified in Winflows.

2. Hardness: The 1.0 ppm limit applies only to standard counter-current operation. In co-current operation, the limit decreases to 0.1 ppm as CaCO₃.

3. Silica: The allowable limit decreases above 10 m³/h. It also decreases to 0.5 ppm when feed water hardness exceeds 0.5 ppm as CaCO₃.

4. Boron: The feed limit decreases to 0.3 ppm as B when a silica guarantee or a resistivity guarantee above 10 MΩ·cm is required.

5. Upstream filtration: Where an open system, such as a tank or decarbonator, is installed between RO and EDI, a filter must be fitted immediately before the stack. A 5 µm absolute or 1 µm nominal filter is generally acceptable.

Final feed water suitability should be verified against the system design and the E-Cell EDI Stack Owner’s Manual.

4. Key Features & Benefits

• Continuous ultrapure water production
  Electrical regeneration supports continuous operation without periodic acid or caustic regeneration of the resin within the stack.

• Simplified process configuration
  No brine injection or concentrate recirculation is required.

• Counter-current operation
  Helps reduce cleaning requirements at higher allowable feed water hardness levels.

• High recovery capability
  Recovery of up to 97% is available, subject to verified design conditions.

• Removal of residual dissolved contaminants
  Provides sodium, silica, and boron removal for demanding industrial water applications.

• Design and performance verification
  Winflows performance projections support stack selection and confirmation of expected product water quality.

5. Key Applications

The Veolia E-Cell MK-5D EDI stack is designed for industrial ultrapure and demineralized water applications, including: