Continuous Electro Deionisation Plant
Derwent Water Systems Continuous Electro De-ionisation (CEDI) products are the most advanced generation of Ion Exchange technology currently supplied. CDI is a chemical-free process that uses ion exchange resins and electricity to produce ultrapure de-ionised water. Our products are environmentally friendly, operate with continuous production, and have extremely low operating costs when compared to chemically regenerated ion exchange technology. Derwent Water Services currently has three lines of Deionisation systems utilising the Ionpure VNX, the LX and the MX series modules. We also offer supplementary equipment ranging from DC Power Controllers to Piping Adapters to fit your system requirements.
Derwent Water Systems continuous de-ionisation modules utilise ion exchange resins primarily as a bridge to allow electric current to pass through the electro de-ionisation cell. This allows us to operate the modules without any brine injection or concentrate recycle. Additionally, the ion exchange resins are used to ‘polish’ the purified water stream by removing minute quantities of silica, carbon dioxide and other contaminants. The ion exchange resins are continually being regenerated by the dissociated hydrogen and hydroxyl ions that have been created by the electric current. Continuous de-ionisation utilises no chemical regenerants and creates no hazardous wastes.
Modules available covering flow rates 500 – 12,500 l/h, contact us for more information