EDI is an electrodeionization unit with Ionpure or E-Cells for polishing deionized water in industrial applications. It offers flow from 0.125 to 20 m³/h and operates by continuously regenerating.
Electrodeionization for ultrapure water
Electrodeionization (EDI) is a proven technology for producing ultrapure water. It works by polishing demineralised water to achieve very low levels of conductivity and silica. Using a combination of ion exchange membranes, resins and electricity, EDI continuously regenerates without the need for chemical dosing or regeneration downtime — making it a reliable alternative to conventional mixed bed polishers.
Continuous process
EDI provides a simple and continuous operation with no downtime due to the electrochemical regeneration.
No use of chemicals
EDI utilizes chemical-free regeneration. Therefore, no storage or application of chemicals is required.
Space-saving units
The EDI units are space-saving due to the very compact design.
Basic features, high reliability
Grundfos EDI range is based on a modular design principle, making it easy to select the right capacity for your application with flow rates up to 26 m3/h.
The standard design of the EDI includes key components that support reliable operation and ease of use - all mounted on a robust stainless steel frame.