Electric deionization EDI (TRIWA-DEMIN)
TRIWA-DEMIN Electric Deionization (EDI) Skid systems produce ultra-pure water by removing dissolved ions and impurities using ion exchange and electrical current. These customizable systems are integrated into a single skid unit, and commonly used in industries such as semiconductor manufacturing, pharmaceutical production, and laboratory research. EDI systems are highly efficient and capable of producing water with extremely low levels of dissolved ions, making them ideal for high purity water applications.
- Categories: EDI Systems, Purification
Description
TRIWA-DEMIN™: Electric Deionization System for Ultrapure Water
The TRIWA-DEMIN™ Electric Deionization System provides a reliable solution for chemical-free, ultrapure water. Because it is designed for critical applications in industry, laboratories, and power generation, you can trust it to deliver continuous, high-quality water wherever you need it. For example, if you want to explore more solutions, visit our full range of water treatment products. Additionally, you can discover our Purifications System for complete treatment lines.
What is an Electric Deionization System?
Electric Deionization (EDI) is an advanced water purification process for producing ultrapure water. Because it uses ion exchange resins and electricity instead of chemicals, EDI systems like TRIWA-DEMIN™ are not only safer and easier to maintain, but they are also more environmentally friendly. Therefore, many industries now prefer EDI water treatment for a continuous, clean water supply. If you want to learn more, visit this Water Quality Association resource about ion exchange and water treatment technology.
Key Features of TRIWA-DEMIN™ EDI System
Compact Ultrapure Water System: Plug-and-Play Solution
The TRIWA-DEMIN™ is a compact, skid-mounted unit designed for fast installation. Since all piping and wiring are pre-connected, you can deploy the system rapidly and minimize downtime. As a result, setup is easy and efficient for your facility, saving you time and resources.
Chemical-Free Ultrapure Water for Any Industry
Because the EDI process does not require acid or caustic chemicals, your operation becomes safer and more eco-friendly. In addition, this feature is especially important for companies aiming to reduce environmental impact and comply with global sustainability standards. If you want to follow industry best practices, refer to the International Water Association. Therefore, choosing EDI helps you support both environmental and operational goals.
Advanced EDI Water Treatment: Smart Controls
With its PLC-based control panel, the TRIWA-DEMIN™ EDI system provides real-time monitoring of conductivity, flow, voltage, and current. As a result, you get a fully automated and reliable ultrapure water system, which means less manual intervention and greater peace of mind. Moreover, these features ensure consistent water quality throughout your process.
Seamless Integration with RO Systems
The TRIWA-DEMIN™ is designed to serve as a final polishing stage after reverse osmosis. Because of this, your facility always receives the highest purity water, which is suitable for the most demanding applications. For a deeper understanding of water treatment processes, you can visit the US Environmental Protection Agency’s water treatment guide. If you already use RO, adding EDI further enhances water quality.
Applications: Ultrapure Water System for Industry and Laboratories
- Boiler feedwater for power plants
- Pharmaceutical and biotech manufacturing
- Semiconductor and electronics production
- Food and beverage processing
- Laboratories and research facilities
- Specialty chemicals and coatings
Performance Overview: TRIWA-DEMIN™ EDI Water Treatment
| Parameter | Typical Value |
|---|---|
| Feed Water TDS | < 50 ppm |
| Product Resistivity | 16–18 MΩ·cm |
| Recovery Rate | 90–95% |
| Flow Rate Range | Custom (based on need) |
| Operation | Continuous, automatic |
Note: Because feed water must be pre-treated with RO, cartridge filtration before EDI is also recommended. As a result, you will extend the system’s lifespan and guarantee better results.
Comparison: EDI vs. Mixed-Bed Deionization
| Category | TRIWA-DEMIN (EDI) | Mixed-Bed Deionizer |
|---|---|---|
| Regeneration | Not needed (chemical-free) | Needs acid and caustic |
| Operation | Continuous | Batch-based |
| Maintenance | Low | High |
| Downtime | Minimal (no cleaning stops) | More downtime for cleaning |
| Safety | No hazardous chemicals | Risky chemical handling |
| Running Cost | Lower over time | Higher due to chemicals and labor |
| Environmental Impact | Very low | Creates chemical waste |
| Footprint | Compact, skid-mounted | Usually larger, needs more space |
As you can see, the EDI system offers clear advantages over traditional mixed-bed deionization. Most importantly, you benefit from reduced risk, less waste, and lower long-term costs. If you want a detailed comparison, read our comprehensive blog post. Furthermore, our team can advise you on the best option for your operation.
Why Choose TRIWA-DEMIN™ Electric Deionization System?
- No chemicals for cleaning or regeneration, so safety is higher and the process is easier. Moreover, your staff stays protected.
- Pure, stable water for sensitive work. Therefore, you avoid product issues and compliance risks, which is crucial for regulated industries.
- Very little downtime—runs all the time, so you keep working without major stops. As a result, your productivity increases.
- Eco-friendly and small—ideal for green buildings or tight spaces. In addition, it saves you space and cost, while supporting your sustainability goals.
- Made by TRIWA with full support at every stage. Thus, help is always available for your project, whenever you need it.
Skip Chemicals. Get Pure Water.
Contact us today to see how TRIWA-DEMIN™ can improve your pure water system with reliable and clean EDI technology. As a result, you’ll enjoy better water and less hassle. If you need more information or want a quote, contact the TRIWA team today. Furthermore, our experts are always ready to support your project from start to finish.
