Demineralization is the process of removing mineral salts from water by using the ion exchange process. Demineralized water is completely free of dissolved minerals hence many laboratories & Industries such as steam, power, process, and cooling employ demineralization plants.

The Water Demineralization Plant we offer is highly proven, effective, and reliable by design. It provides user-friendly operation and runs on low power, ensuring cost-effective results with 15 micro siemens/cm conductivity.  

Water Softener Plant
Water Softener Plant


Product Description

The DM plant comprises of strong acid cation, strong base anion, and mixed bed unit. Naturally, occurring Water has various salts in the dilute form which are called dissolved solids. When the Water having such mineral is required to be free from this, it is to be treated in the Ion Exchange Resins column (H form) which adsorbs the positively charged ion. Now the cations free pass through Anion Resin Column (OH form) which adsorbs the negatively charged anions and Water free from the total ions shall come out from the system.



Ion exchange is a rapid and reversible process in which impurity ions present in the Water are replaced by ions released by an ion-exchange resin. The impurity ions are taken up by the resin, which must be periodically regenerated to restore it to its original ionic form. An ion is an atom or group of atoms with an electric charge. Positively-charged ions are called cations and are usually metals; negatively-charged ions are called anions and are usually non-metals. Because the majority of water impurities are dissolved salts, deionization produces high-purity water (deionized water) that is generally similar to distilled water, and this process is quick and without scale buildup.



  • User-friendly
  • Easy operation
  • Low power consumption
  • Low maintenance
  • Durable, economical, high shelf life
  • High flexibility, and high reliability in operation



  • Boiler feed water in boilers from low pressure to supercritical pressure
  • Industries such as Textiles, Pharmaceuticals, Chemicals, Breweries, Hospitals, swimming pools, Automobiles, Batteries, and Fertilizers.
  • Ion Exchange Plants


Save earth
Save earth
Save earth
Save earth

Frequently Asked Question

What is a demineralization plant?

A demineralization plant, also known as a deionization (DI) plant, is a water treatment system that removes dissolved minerals and ions from water. This process is typically done using ion exchange resin beads or reverse osmosis. The resulting water is often referred to as demineralized water or deionized water, and is suitable for use in industrial processes, power generation, and other applications where high-purity water is required.

How does a demineralization plant work?

A demineralization plant typically consists of two main stages: cation exchange and anion exchange. In the cation exchange stage, positively charged ions such as calcium, magnesium, and sodium are removed from the water by exchange with hydrogen ions. In the anion exchange stage, negatively charged ions such as chloride and bicarbonate are removed from the water by exchange with hydroxide ions. In both stages, the exchanged ions are then removed from the resin beads and the purified water is collected for use.

What are the advantages of using demineralized water?

Demineralized water has several advantages over tap water or other sources of water. It is free of dissolved minerals and ions, which can cause corrosion, scaling, and other problems in industrial processes. It is also ideal for use in power generation, as it reduces the likelihood of damage to boilers and other equipment. Additionally, demineralized water can improve the performance of certain industrial processes, such as electroplating and etching.

What are the disadvantages of demineralization plant?

The main disadvantage of a demineralization plant is the cost of operation. The ion exchange resin beads have to be regularly replaced, which can be costly. Additionally, the process consumes a large amount of energy, which can make it expensive to run. Also, it creates brine waste water which need to be treated before disposing.

What are the common applications of demineralized water?

Demineralized water is commonly used in a variety of industrial and commercial applications, including:

• Power generation
• Pharmaceuticals
• Cosmetics and personal care products
• Electronics and semiconductors
• Boiler feed water
• Laboratory use
• Chemicals
• Food and beverages
• Textiles

How often does the ion exchange resin beads need to be replaced?

The ion exchange resin beads need to be replaced at regular intervals, depending on the water quality and the level of use. The beads typically need to be replaced every few years, but the exact frequency will depend on the specific application and the level of water impurities.

Can Demineralization plant process water with high TDS level?

Demineralization plant can process water with high TDS level, but it will require a larger volume of resin beads and also the resin replacement will be frequent. It is also not efficient to treat highly saline water through demineralization, in such case alternatives like Reverse osmosis is generally more efficient.