into positively and negatively charged components called ions. Since Ion Exchange resins work by exchanging ions, they can be used to clean water of all impurities. Cation resin is used..., leaving nothing but pure water in the final product. Separate Bed DI Systems In this kind of DI system, there are separate Ion Exchange columns holding either cation resin or anion... resin. The resins must be kept separate because the regenerant for one will completely load the other. For instance, the cation resin must be regenerated with a strong acid. Strong...

both cations and anions from water to produce ultrapure water for details on ion exchange and conventional DI systems). The difference lies in how the ion exchange resin...Trionetics, Inc - Electro-DeIonization (EDI) Systems Electrodeionization Electrodeionization (EDI) works exactly like conventional DI systems, using ion exchange resin to remove... is regenerated. Rather than using chemical concentration, an electric current is used to remove contaminant ions and create ions to regenerate the resins. This leads to considerable savings...