EDI Water Treatment Systems | Continuous Chemical-Free Operation

Intro: Need chemical-free ultra-pure water? Our EDI modules deliver consistent 18.2 MΩ·cm water quality with zero chemical regeneration. Perfect for pharmaceuticals, microelectronics, and power generation industries requiring continuous high-purity water production.

What is EDI Technology?

EDI (Electrodeionization) is an advanced water purification technology that combines ion exchange membranes, resin, and electrical current to remove ions without chemical regeneration.

Core Technology Components:

• Ion Exchange Membranes: Selective permeability for cation and anion removal
• Mixed Bed Resin: Enhanced ion removal efficiency
• DC Electrical Field: Continuous regeneration process
• Stack Design: Multiple cell pairs for efficient operation

Process Fundamentals:

• Continuous ion removal and resin regeneration
• No chemical consumption required
• Simultaneous production and regeneration
• Stable, consistent water quality output

How EDI Systems Work

Three-Stream Separation Process:

Product Water Stream (90-95%)

• Ultra-pure water output
• 15-18.2 MΩ·cm resistivity
• Meets various industry standards

Concentrate Stream (5-8%)

• Contains rejected ions
• Recyclable to system inlet
• Minimal wastewater generation

Electrode Flush Stream (1-2%)

• Removes electrode reaction products
• Minimal water consumption
• Continuous electrode protection

5 Major Advantages of EDI Technology

1. Chemical-Free Operation

• Eliminates acid and caustic chemicals
• No chemical storage or handling required
• Zero chemical wastewater discharge
• Enhanced operator safety

2. Continuous Production

• Non-stop ultra-pure water generation
• Stable output quality maintained
• No regeneration downtime
• Consistent 24/7 operation

3. Low Operating Costs

• Reduced chemical expenses
• Minimal waste disposal costs
• Lower energy consumption
• Decreased labor requirements

4. Environmental Sustainability

• No hazardous chemical usage
• Minimal wastewater generation
• Reduced environmental impact
• Green technology certification

5. Easy Operation & Maintenance

• Fully automatic operation
• Simple maintenance procedures
• Remote monitoring capability
• Minimal operator intervention

Technical Specifications

EDI vs Mixed Bed Comparison

Industry Applications

Pharmaceutical Industry

• Water for Injection (WFI) pretreatment
• Purified water systems
• Equipment cleaning water
• Laboratory water supply

Microelectronics Manufacturing

• Semiconductor production
• Wafer cleaning processes
• PCB manufacturing
• Display panel production

Power Generation

• High-pressure boiler feed water
• Turbine generator cooling
• Demineralized water systems
• Combined cycle power plants

General Industry

• Chemical processing
• Surface treatment
• Research laboratories
• Food and beverage production

System Configuration Options

Standard EDI Modules:

• Compact Skid Designs: Space-saving configurations
• Multiple Capacity Ranges: 0.5-50 m³/h systems
• Custom Engineering: Application-specific designs
• Integration Ready: Easy RO-EDI combination

Control & Monitoring:

• PLC-based control systems
• Real-time resistivity monitoring
• Remote operation capability
• Automated diagnostic functions

Installation & Maintenance

Installation Requirements:

• Pre-filtered RO feed water
• Adequate electrical supply
• Proper drainage facilities
• Qualified installation technicians

Maintenance Schedule:

• Regular performance monitoring
• Annual preventive maintenance
• Membrane stack inspection
• Electrical system verification

Why Choose Our EDI Modules?

Quality Assurance:

• ISO 9001 certified manufacturing
• Performance validation testing
• Comprehensive documentation
• Industry compliance guarantee

Technical Support:

• 24/7 technical assistance
• Remote monitoring options
• Spare parts availability
• Regular service maintenance