The DM plant (Demineralization plant) consists of a strong acid cation resin, strong base anion resin, and a mixed bed unit. Naturally occurring water contains dissolved solids in the form of salts. To remove these minerals, the water is first passed through the ion exchange resin column (H form), which adsorbs the positively charged ions cations. The water, now free from cations, moves through the anion resin column (OH form), where the negatively charged ions anions are adsorbed. The result is purified water with total ion removal, leaving the water free of dissolved minerals and providing high-quality demineralized water suitable for various industrial applications.
Ion exchange is a fast and reversible process in which undesirable ions in the water are exchanged with ions from an ion-exchange resin. The resin absorbs the impurity ions, which are then periodically regenerated to return the resin to its original ionic form. Ions are atoms or groups of atoms that carry an electric charge: cations are positively charged, typically metals, while anions are negatively charged, usually non-metals. Since most water impurities consist of dissolved salts, the deionization process results in high-purity water (deionized water), which is comparable to distilled water, and operates efficiently without scale formation.
Key features of Demineralization Plant include:
- Simple to operate
- Easy operation
- Minimal energy usage
- Low upkeep requirements
- Durable, economical, high shelf life
- High flexibility, and high reliability in operation
Demineralization Plant are widely used in:
- Boiler feed water for various pressure systems including low, medium, and supercritical pressures
- Industries including Textile, Pharmaceuticals, Chemicals, Food & Beverage, Healthcare, Automotive, Electronics, and Fertilizer Manufacturing
- Advanced Ion Exchange Water Purification Systems
Frequently Asked Questions (FAQ)
- Power generation: To provide ultra-pure water for boilers and cooling systems.
- Pharmaceuticals: To produce high-quality water for manufacturing drugs.
- Electronics: For the production of semiconductors and electronic components.
- Food and beverage: For water used in production processes to avoid scaling and impurities.
- Removal of harmful minerals and salts, improving water quality.
- Prevention of scaling and corrosion in industrial equipment.
- Production of ultra-pure water required for sensitive applications like power generation and pharmaceuticals.
- Cost-effectiveness compared to other water treatment processes when mineral-free water is required.