Ion Exchange Resins

Mixed-bed DI Ion Exchange Resins are normally used to ‘polish’ the water to higher levels of purity after it has been initially treated by either a two-bed deioniser or a reverse osmosis unit. In mixed bed deionisers the Strong Acid Cation and Strong Base Anion resins are closely mixed and contained in a single pressure vessel. Our Mix Bed Deionising resins can produce the highest quality of deionised water possible, however, feeding untreated water into a mixed bed unit can be an expensive option and may not produce the water quality required. In order to obtain the purest quality deionised water, a reverse osmosis system should be used before the water is treated through the Mixed Bed unit. While the reverse osmosis system removes most of the impurities the mixbed resin removes the rest of the ions in the water.

It is a strong cation ion exchange resin supplied in its sodium form, it is normally used to soften hard water. Water hardness is usually calculated as Ca2+ and Mg2+. Water Softener Resin exchanges the hardness minerals (calcium and magnesium) dissolved in water for sodium. This soft mineral is contained on the softener resin beads and does not build up on surfaces as scale deposits. The water softener resin is regenerated with a brine solution (salt).

MDC Water offers a wide range of quality water softeners for residentional, commercial and industrial applications.