EDR-IF/250 module

The EDR-IF/250 module is a new-generation electrodialysis stack developed by MEGA (Czech Republic), specifically designed for high-salinity water treatment, industrial wastewater, and ZLD systems. Equipped with 250 pairs of RALEX® ion-exchange membranes and platinum-coated titanium (Ti/Pt) electrodes, the unit delivers high ion separation efficiency with stable and continuous operation. Its optimized stack design enables up to 40% higher performance, 30% reduction in system footprint, and significantly reduced maintenance requirements, making it well suited for demanding industrial environments.

Brand: Mega

Product Type: EDI

PRODUCT FEATURES

Up to 40% higher performance compared to conventional EDR stack generations.
Extended maintenance intervals thanks to optimized membrane and spacer design, minimizing scaling and fouling, and enabling continuous operation without chemical cleaning.
Compact design, allowing up to 30% reduction in system layout footprint.
No internal or external leakage, ensuring zero loss of product water while improving both desalinated water quality and water recovery rate.
Reduced capital investment, achieved by lowering the number of EDR modules required within the same system capacity.
Robust construction and easy maintenance: the EDR stack module is designed to be dismantled and manually cleaned using a water jet without damaging the stack.
Flexible applications for treatment and recovery of high-salinity streams, including RO brine concentration, pre-treatment before evaporation, ZLD processes, and industrial wastewater reuse.
Certified in compliance with international standards, including ISO 9001, ISO 14001, ISO 45001, and Der Grüne Punkt certification.

SPECIFICATIONS

Number of ion-exchange membrane pairs

250
Length

1,130 mm (44.5 inch)
Width

710 mm (28 inch)
Height

2,030 mm (79.9 inch)
Weight (empty stack)

1,120 kg (2469.2 lbs)
Weight (filled stack)

1,290 kg (2,844 lbs)
Hydraulic connection - feed / product streams

90 mm
Hydraulic connection - concentrate stream

90 mm
Hydraulic connection - electrode stream

20 mm

The EDR-IF/250 module is an industrial deionization module manufactured by MEGA (Czech Republic), utilizing advanced Electrodialysis Reversal (EDR) technology for the treatment of high-salinity water. Below is detailed information on the technical specifications, key advantages, certifications, and applications of the EDR-IF/250 product line.

1. Technical specifications of the EDR-IF/250 module

The EDR-IF/250 module is engineered for superior water treatment performance, featuring a configuration of 250 RALEX® ion-exchange membrane pairs, platinum-coated titanium (Ti/Pt) electrodes, and a mechanically robust structure that ensures reliable operation under harsh industrial conditions. Below is the technical specification table for this product line:

SPECIFICATION	VALUE
Number of ion-exchange membrane pairs	250
Anion-exchange membrane	RALEX® AM(H)
Cation-exchange membrane	RALEX® CM(H)
Spacer thickness	0.8 mm
Electrodes	4 pcs, platinum-coated titanium (Ti/Pt)
Length	1,130 mm
Width	710 mm
Height	2,030 mm
Weight (empty / filled stack)	1,120 / 1,290 kg
Hydraulic connection – inlet / product streams	90 mm
Hydraulic connection – concentrate stream	90 mm
Hydraulic connection – electrode stream	20 mm
RALEX® ION-EXCHANGE MEMBRANE SPECIFICATIONS
Membrane length (swollen state)	1,370 mm
Membrane width (swollen state)	420 mm
Membrane thickness (swollen state)	0.6 mm
Total installed membrane area	287.9 m²
OPERATING PARAMETERS
Max. operating voltage	500 V
Max. rated current	180 A
Operating flow rate – diluate (D), concentrate (C)	15–25 m³/h
Operating flow rate – electrode stream (ES)	2 × 1.0–1.5 m³/h
Salt removal	30–75%
Max. inlet pressure	400 kPa
Pressure loss of diluate and concentrate streams at 25°C	15–60 kPa

2. Advantages of the EDR-IF/250 electrodialysis deionization stack

The EDR-IF/250 stack has been developed by MEGA based on more than 30 years of research and manufacturing experience in electrodialysis deionization systems, delivering outstanding performance and high reliability for industrial water treatment applications. Key advantages include:

Superior treatment performance: Up to 40% higher performance compared to previous-generation EDR modules, achieved through optimized design and advanced materials, resulting in improved desalination efficiency and increased water recovery.
Stable operation with reduced maintenance downtime: Optimized membrane and spacer design minimizes scaling and fouling, significantly reducing cleaning and replacement requirements. This enables long-term continuous operation without frequent shutdowns for maintenance.
Compact footprint: System layout can be reduced by up to 30% thanks to higher stack performance, allowing fewer EDR modules to be installed. This optimizes equipment layout and lowers initial capital expenditure.
Safe, leakage-free operation: The stack is manufactured with excellent sealing integrity, eliminating both internal and external leakages. This ensures stable product water quality and enhances overall salt and water recovery.
Cost-effective investment: By reducing the number of EDR modules required per system, overall equipment and infrastructure costs are significantly lowered.
Robust design with easy cleaning and maintenance: The EDR stack can be dismantled and manually cleaned using water jets without damaging the structure or membrane lifetime, allowing continued operation without module replacement.
Certified to international quality and environmental standards: The EDR-IF/250 is manufactured in compliance with ISO 9001 (quality management), ISO 14001 (environmental management), ISO 45001 (occupational health and safety), and is certified with Der Grüne Punkt, a European standard for environmental responsibility in manufacturing.

3. Certifications of the EDR-IF/250 stack

The EDR-IF/250 electrodialysis deionization stack is manufactured in accordance with stringent international standards for quality, environmental protection, and occupational safety, ensuring high reliability and optimal performance under real operating conditions. Each unit is thoroughly inspected prior to delivery to guarantee consistent performance and operational stability.

The certifications include:

ISO 9001 – Quality management system, ensuring consistent compliance with technical requirements.
ISO 14001 – Environmental management system, minimizing environmental impact during manufacturing.
ISO 45001 – Occupational health and safety management system, ensuring a safe working environment.
Der Grüne Punkt (The Green Dot) – European certification for environmental responsibility and packaging recycling.

With these international certifications, the EDR-IF/250 fully meets the requirements of industrial water treatment projects demanding high performance, safety, and long-term sustainability.

4. Applications of the EDR-IF/250 stack

The EDR-IF/250 is a core component of electrodialysis (EDR) systems used to treat high-salinity water or streams with elevated dissolved ionic content. With stable desalination performance and continuous operation capability, the stack is well suited for a wide range of industrial water treatment processes.

Typical applications include:

RO brine concentration: Utilization of concentrate streams from reverse osmosis systems to improve water recovery and reduce wastewater discharge.
Pre-concentration before evaporation: Supporting evaporators by reducing the volume of water to be treated, resulting in lower energy consumption and operating costs.
ZLD (Zero Liquid Discharge) systems: Applied in facilities requiring wastewater reuse and zero liquid discharge, supporting sustainable and environmentally responsible operations.
Industrial wastewater treatment: Suitable for industries such as chemicals, electronics, food and beverage, textiles, and metallurgy, where removal of salts and dissolved ions from wastewater is required.

Thanks to its ability to handle high salinity water and its robust design, the EDR-IF/250 is an ideal solution for industrial desalination, wastewater reuse, and brine concentration applications.

5. ATS Water Technology – Authorized distributor of the EDR-IF/250 module

ATS Water Technology Co., Ltd. is the official authorized distributor of MEGA (Czech Republic), a leading European manufacturer of electrodialysis and industrial water deionization technologies. With extensive experience in consulting and designing industrial water treatment systems in Vietnam, ATS Water Technology supplies genuine EDR-IF/250 stacks together with comprehensive technical, operational, and maintenance solutions.

All EDR-IF/250 modules distributed by ATS Water Technology are guaranteed with clear origin, complete CO-CQ documentation, and direct technical support from the manufacturer. Our engineering team possesses in-depth expertise in EDR technology and provides customized system design and optimization for each specific application.

With the commitment to delivering high-quality products, advanced technology, and professional services, ATS Water Technology provides reliable and efficient electrodialysis solutions that help industrial clients optimize operation, reduce treatment costs, and move toward sustainable, environmentally friendly industrial development.

Please contact ATS Water Technology today for professional consultation, detailed technical catalogues, and official quotations for the EDR-IF/250 electrodialysis deionization stack.

ATS WATER TECHNOLOGY CO., LTD