Floaters - Demineralization Resin System
The water demineralization process is based on the properties of the resins (ion exchangers) to remove unwanted ions from water, replacing them with others. This treatment uses two types of ion exchange resins, cationic and anionic, with hydrogen (H+) for the cationic ones and oxidrile (OH- ) for the anionic ones, as functional group to be replaced with other ions which determine water salinity.
The contact between the ion exchange resins and water occurs in pressure vessels supplied with perfectly filtered water: the operation of the ion exchange resins, in fact, can be impaired if substances in suspension in the water deposit on the resin beds. The demineralizers are designed so as to ensure the uniform flow of water and regeneration agents through the resin bed. The cationic and anionic resins have the capacity to be regenerated, thus, when they are exhausted, the DEMI S system lets hydrochloric acid flow in the column with cationic resins and lets sodium hydroxide flow in the column with anionic resins, restoring resin work.