Water Demineraliser Plant (DM Plant)

Water Demineraliser Plant (DM Plant)

A Water Demineraliser Plant (DM Plant) is designed to produce high-purity deionised water by removing dissolved salts and minerals through ion exchange resins. This treated water is widely used in laboratories, pharmaceutical industries, electroplating, battery manufacturing, food industry, hospitals, electronics, chemical furnaces, schools, and colleges. Thousands of users worldwide rely on DM Plants as an economical and efficient way to generate distilled-quality water almost free from dissolved solids.

At Water Sciences, our Demineralisers are available in both two-bed upflow and mix-bed designs. Compact and easy to operate, they come equipped with a conductivity meter to continuously monitor water quality. Our systems can be directly connected to tap water and are suitable for both continuous supply and instant requirements of demineralised water.

In a two-bed DM Plant, raw water passes through a cation resin column (H⁺ form) that converts dissolved salts into acids. This acidic water is then treated in an anion resin column (OH⁻ form), which neutralizes the acids and delivers high-purity demineralised water. When exhausted, the cation column is regenerated with HCl, and the anion column with NaOH, restoring the plant’s capacity for the next cycle.

Mix-bed Demineralisers combine cation and anion resins in a single column, offering multiple stages of demineralisation. This method ensures extremely pure water output, making it ideal for industries requiring ultra-pure water. During regeneration, resins are separated and treated individually before being remixed with compressed air, ensuring consistent and reliable performance.

Key Highlights of Water Sciences’ DM Plants

• Produces high-purity, deionised water for diverse industrial and laboratory applications
• Compact, durable, and easy-to-operate design
• Continuous water quality monitoring with conductivity meter
• Available in two-bed and mix-bed models to suit varied needs
• Economical, efficient, and long-lasting performance

Important Considerations

• Quality of treated water depends on raw water quality
• Raw water should be clean, colourless, and free from oils or organic matter
• Treated water is not pyrogen-free
• Capacity per regeneration depends on ionic load present in raw water