Ultrapure water edi water purification equipment

Ultrapure Water EDI Purification Equipment for Industrial and Laboratory Applications

The Ultrapure Water EDI (Electrodeionization) Water Purification System represents a cutting-edge solution in advanced water treatment technology. Designed for industries requiring consistent, high-purity water—such as pharmaceuticals, semiconductor manufacturing, power generation, and research laboratories—this system delivers exceptional performance without the need for chemical regeneration or wastewater discharge.

Unlike traditional ion exchange or reverse osmosis systems alone, EDI combines electrochemical desalination with continuous resin regeneration, ensuring stable resistivity levels of up to 18 MΩ·cm, making it ideal for ultra-pure water applications. This integration allows for continuous operation, minimal maintenance, and superior water quality control—an essential advantage in sensitive industrial processes where even trace contaminants can compromise product integrity.

Key Technical Advantages:

• Continuous flow operation with resistivity ≥15 MΩ·cm, meeting ISO 3696 Class I standards for laboratory-grade water
• High recovery rate exceeding 95%, minimizing resource waste and operational costs
• Zero chemical usage during resin regeneration—environmentally friendly and safe
• No brine or toxic effluent production—ideal for eco-conscious facilities
• Fully automated control system with low labor requirements and easy integration into existing infrastructure

This EDI water purification unit leverages advanced membrane stack design and optimized current distribution to ensure uniform ion removal across the entire system. The self-regenerating ion-exchange resin beds eliminate the need for periodic acid or base dosing, reducing downtime and chemical handling risks. With modular construction, scalability is built-in—from small-scale lab units to large industrial installations—making it adaptable to diverse facility sizes and water demands.

Common applications include boiler feedwater treatment, pharmaceutical grade water production, semiconductor wafer cleaning, biotechnology processes, and analytical chemistry labs. Whether used in standalone mode or integrated with RO (Reverse Osmosis), this system provides reliable, long-term purity that supports compliance with international standards such as USP, EP, and ASTM.

Trusted by leading global brands including Coca-Cola, PetroChina, Watson, and Shenzhen Water Industry, our EDI systems have been deployed in over 40 countries worldwide—from Australia to Germany, Chile to Singapore—demonstrating robustness under varied environmental conditions and water qualities.

Customers consistently highlight the system’s reliability, ease of operation, and reduced total cost of ownership compared to conventional methods. One user noted, “We’ve seen a 30% drop in maintenance time since switching to EDI—no more chemical storage, no more disposal permits.” Another praised the consistent water quality: “Our lab now meets ISO 17885 standards without manual intervention.”

Frequently Asked Questions:

What makes EDI different from mixed bed ion exchange? EDI offers continuous operation without chemical regeneration, whereas traditional mixed beds require frequent acid/base cycles that generate hazardous waste.

Is this suitable for drinking water? While capable of producing potable-quality water, EDI is primarily engineered for industrial and technical uses where extreme purity is required—not domestic consumption.

How often do I need to replace components? Resin lifespan typically exceeds 5 years with proper pre-treatment; membranes and electrodes may last longer depending on feedwater quality and operating parameters.

Can it handle variable feedwater quality? Yes—with optional pre-filtration stages like multi-media filters and UF membranes—it adapts effectively to fluctuating source water conditions while maintaining output consistency.

Choose our EDI purification equipment for a smarter, cleaner, and more sustainable approach to water treatment—engineered for excellence, trusted globally.