Ion Exchange


Rotek offers a wide variety of water purification systems using ion exchange resins. Systems include water softeners, deionizers and electro-deionization (EDI) systems. These products use advanced ion exchange technology to meet the most demanding water conditions.

Water Softener


Capacity: 1,000 - 25,000 LPH


Water softener reduces the calcium and magnesium ion concentration in hard water that causes hard scale build up. It also inhibits the cleaning effect of detergent formulations.

Mixed Bed Polisher


Capacity: 25 - 7,500 LPH


Rotek mixed bed polisher is designed to treat RO permeate water, in order to deliver higher purity water for commercial and industrial applications, such as rinse water for electronics.

Electrodeionization (EDI) System


Capacity: 100 - 7,000 LPH


EDI system is superior to a conventional mixed-bed deionization system both in ease of operation and maintenance. In addition, no chemicals are used for regeneration during purification process.

Twin Bed Deionizer


Capacity: 2,000 - 10,000 LPH

Deionization is an ion-exchange process for removing ionized constituents from water. The process is performed by passing water through the hydrogen form of a cation-exchange resin and through the hydroxide form of a strong-base anion-exchange resin. The resins need to be regenerated with acid and caustic.