Electrodeionization

Description

Electrodeionization systems represent the next generation in high-purity water treatment. By integrating ion exchange resins, selective ion-exchange membranes, and direct current (DC) electricity, EDI effectively removes dissolved ions such as calcium, sodium, silica, carbon dioxide, and other ionizable impurities from water. Typically used as a post-treatment step after reverse osmosis (RO), EDI systems ensure continuous production of ultrapure water without the use of harsh chemicals.

Unlike conventional mixed-bed ion exchange systems that require periodic chemical regeneration, EDI regenerates the resin internally using electricity. This provides a chemical-free, eco-friendly solution that reduces operating costs, downtime, and the risk of contamination.

Key Benefits of Gresham’s EDI Systems:

• Continuous production of ultra-pure, low-conductivity water

• No chemical regeneration or hazardous waste

• Minimal maintenance and system downtime

• Compact design for space-saving installation

• Environmentally sustainable and cost-effective

Typical Applications Include:

• Pharmaceuticals – ensuring water meets stringent purity standards

• Electronics & Semiconductors – protecting sensitive components

• Laboratories & Research Facilities – delivering consistent test results

• Power Generation – Preventing scaling in turbines and boilers

• Food & Beverage – supporting contamination-free production

Whether for a new installation or system upgrade, Gresham provides customizable, ISO-certified EDI solutions designed to meet your industry’s exacting standards.