DuPont has unveiled four new high-flow Electrodeionization (EDI) modules, strengthening its water purification portfolio and targeting the growing demand for higher-purity water across industrial and microelectronics applications.
The new DuPont EDI-520, EDI-820, EDI-530 and EDI-830 modules expand the company's existing product range, offering nominal product-water flow rates of 5 and 8 cubic metres per hour (m³/h). Available in two- and three-outlet configurations, the modules are designed to give original equipment manufacturers (OEMs) and end users greater flexibility in meeting varying system requirements.
The expanded portfolio targets a broad range of industries, including power generation, green hydrogen, petrochemicals, chemical processing, pulp and paper, metallurgy, solar photovoltaic manufacturing and semiconductor chip assembly and testing.
Electrodeionization combines electrodialysis with ion exchange resin technology to continuously remove ionized and ionizable impurities from water using direct-current electricity.
Typically deployed as a polishing stage after reverse osmosis, EDI offers an alternative to conventional mixed-bed ion exchange for producing deionized (DI) water and selected ultrapure water (UPW) applications.
A key advantage is its continuous, chemical-free operation, which eliminates the need for hazardous chemical regeneration and reduces associated chemical waste.
"The expansion of our EDI portfolio gives our customers greater flexibility to address a broader range of higher-purity water requirements," said Gary Gu, Global Technology Director, DuPont Water Solutions.
"By combining high-flow EDI modules with our expertise across ion exchange, reverse osmosis and ultrafiltration, we can help customers simplify system design, operations and maintenance while supporting reliable, higher-quality water production."
Drawing on more than two decades of EDI manufacturing experience, DuPont is combining its established spiral-wound technology with the newly introduced high-flow plate-and-frame modules.
The new modules incorporate DuPont ion exchange resins, ion exchange membranes and electrodes. The design aims to deliver consistent high-purity water production while reducing dilute-chamber pressure drop and electrical resistance.
With the addition of the four new products, DuPont's EDI portfolio now spans nominal product-water flow rates from 2 to 8 m³/h, including its existing EDI-310 module. The expanded range is intended to serve everything from smaller installations to large-scale industrial projects.
The modules are designed for both greenfield installations and replacement projects, with multiple configurations aimed at accommodating the operational needs of equipment manufacturers and end users.
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