DM Plant
DM Plant
Demineralization is the process of removing mineral salts from water by using the ion exchange process. Impurities that remains dissolved in water dissociate to form positive and negative charged particles known as ions. An ion-exchange vessel holds ion-exchange resin of the required type through which water is allowed to pass. The selective ions in the water are exchanged with ions or radicals loosely held by the resin. In this way, the water is passed through several vessels or a mixed bed vessel so that both positive and negative ions are removed and water is dematerialized
- ION EXCHANGE PROCESS
In the ion exchange process, water is percolated through spherical, porous resin materials called ion-exchange resins. The resins are classified into four basic categories: strong acid cation (SAC), weak acid cation (WAC), strong base anion (SBA), and weak base anion (WBA).
During the process, the resin releases contaminant ions and swaps them for ions present in a regenerant solution, such as a salt, acid, or caustic solution. The contaminant ions exit the system as part of the regenerant effluent stream and need to be properly discharged. Before the next active ion exchange cycle, the resin is usually rinsed to remove any residual regenerant.
- REVERSE OSMISIS PROCESS ( FOR DIALYSIS UNIT )
Reverse osmosis (RO) is a water treatment process that uses a semipermeable membrane and high pressure to filter salt and other impurities from water. The process works by applying pressure to the concentrated side of the membrane, forcing purified water through to the dilute side. The impurities are then washed away in the reject water.
