Veolia EDI Stacks MK-7: The Chemical-Free Solution for High-Purity Water Production
The Veolia EDI Stacks MK-7 represents the pinnacle of electrodeionization (EDI) technology, delivering ultra-pure water without chemical regeneration. Designed for industries requiring 24/7 high-purity water, the MK-7 combines unmatched efficiency, durability, and sustainability, making it the ideal replacement for traditional ion exchange systems.
Key Features & Benefits
1. Chemical-Free Operation
✔ Eliminates hazardous acid/alkali regeneration—reducing environmental risks and operational costs
✔ Zero wastewater discharge during normal operation—supporting sustainable water management
2. Superior Purity & Performance
✔ Produces water with resistivity up to 18.2 MΩ·cm—meeting USP, EP, and WFI standards
✔ >99.9% ion removal efficiency—ensuring consistent ultra-pure water quality
✔ High flow capacity (1–100 m³/h)—scalable for small labs to large industrial plants
3. Advanced Anti-Fouling & Self-Cleaning
✔ Auto-polarity reversal—prevents scaling and extends membrane life
✔ Optimized spacer design—minimizes fouling and reduces maintenance
4. Industrial-Grade Durability
✔ Corrosion-resistant materials—withstands high conductivity feedwater (up to 50 µS/cm)
✔ Extended lifespan (10+ years)—reduces replacement costs and downtime
✔ Wide temperature tolerance (5–45°C)—ideal for harsh industrial environments
5. Energy-Efficient Design
✔ 30% lower energy consumption vs. conventional EDI systems
✔ High recovery rate (up to 95%)—minimizes water waste
The E-Cell MK-7 module is an electrodeionization (EDI) module that uses electric current to deionize and polish reverse osmosis (RO) water. The MK-7 produces ultrapure water, suitable for today's most demanding water quality industries.
The E-Cell MK-7 module is used for
● Provide ultrapure water for industries such as power, electronics and general industry.
● Continuously produce ultrapure water of mixed bed water quality.
● No acid and base regeneration of the ion exchange resin in the module is required.
● Guaranteed to be leak-proof.
● No brine injection and concentrated water circulation are required, simplifying system design.
Typical applications
● Power generation (NOx, boiler feed water)
● Electronics
● General industry
Applications:
Electronics: Ultrapure water production, cleaning agent preparation
Pharmaceuticals: Injectable water production, cleaning agent preparation
Power Generation: Boiler feedwater production
Food and Beverage: High-purity water production
Why Choose Veolia MK-7 EDI?
As a global leader in water treatment, Veolia brings decades of expertise and innovation to the MK-7 EDI. Trust in our proven technology to deliver exceptional results.
| Parameter | Value |
| Brand | Veolia EDI |
| Exchangeable ppm | 36 |
| Inlet Pressure | 6.9 bar (100 psi) |
| Max Temperature | 40°C (104°F) |
| Pressure Drop | 2.4-3.4 bar (35-50 psi) |
| Recovery | Up to 97% |
| Conductivity | < 62 µs/cm |
| pH Range | 4-11 |
| Flow Rate | 4.2-7.8 m³/h (18-34 gpm/ft²) |
| Power Voltage | 0-400 VDC |
| Shipping Weight | 165 kg (364 lbs) |
| Application | Water for Injection, Pharmaceutical, Laboratory |
E-Cell EDI Technology Performance Examples
E-Cell EDI technology has been successfully applied in various industries such as power, petroleum, chemical, steel, pharmaceutical, and electronics.
For application cases, please click:https://www.fgwater.com/Industries/
About Us
FG Water Technologies (www.fgwater.com) is now an organic part of Wuxi Fenigal Science and Technology Co. Ltd., which is a high-tech entity integrating water treatment quipment design, manufacturing, trading and shipment served for main industrial sectors.
HAFE-FG Water Technologies has focused on the research of water treatment technology, equipment development and manufacturing, testing and international shipment etc. We work with many leading large-scale or small-medium original equipment manufacturers in China High-tech Development Zones, and engaged ourselves in R&D, manufacturing, and quality testing.
Our main products include a variety of water purification and different treatment equipment, such as seawater reverse osmosis (SWRO) system, brackish water rever osmosis (BWRO), ultrafiltration (UF)system, Electrodeionization/EDI equipment, media pressure filters and ion exchanger softeners. So far, our company has become a major water treatment equipment supplier for food and beverage industry, pharmaceutical industry, chemical industry, electric power industry, urban water supply industry, municipal and industrial wastewater treatment and more industries, as well as being an exporter to more than 20 countries and regions in Asia, Europe, the Americas, Africa, etc.
OUR CLIENTS
PRODUCTION SYSTEM
Our production system consist of a list of industry-specialized partnership factories accross China. Some of them singularly cover an area of over 10,000 square meters, including 5,000 square meters of workshop and warehouse and 1,500 square meters of office buildings. All of our technical staff has more than 10 years of experience in the design of water treatment systems, so we are able to provide the perfect solution for all kinds of water purification and sewage treatment applications.
Since the establishment, the Company has always regarded quality as the life of our business. We choose the best components only for the production of various water treatment systems. Our systems are easy to use and maintain, and they stays highly reliable even under toughest conditions.
