Landmark Industries

Jashoda Nagar, Ahmedabad, Gujarat

We are offering Demineralised Plant that is also called as DM plant in water treatment division. This water treatment system is used for removing unnecessary minerals salts from water. The system uses on ion exchange process for eliminating minerals, calcium, iron, copper and cat ions of sodium like mineral ions as well as anions like sulphate, chloride, nitrate that exists in the normal water. Our Demineralised Plant generates mineral free water. The demineralization technology is one of the established processes of water treatment. Our Demineralised Plant is widely applied in food & beverages industries, oil & gas industries, chemical industries, power plants, fabric industries and pharmaceuticals industries.
Our Demineralised Plant consists of two pressure vessels containing cation and anion exchange resins. Various types of ion exchange resins can be used for both the cation and the anoin process depending on the type of impurities in the water and on the fact that what will be the usage of final water. Typically, the cation resin operates in the hydrogen cycle. The cation in the water (i.e. Calcium, magnesium and sodium) passes through the cation exchange resin where they are chemically exchanged for hydrogen ions.
The water then passes through the anion exchange resin where the anions (i.e. Chloride, sulphate, nitrate and bicarbonate) are chemically exchanged for hydroxide ions. The final water from this process consists essentially of hydrogen ions and hydroxide ions, which is the chemical composition of pure water. The simplified demineralization plant consists of composite resin vessel with change of composite resin vessel and change of strong cation & anion resin, control panel encompassing conductivity measurement and alarms, etc.

Deionizer Types : There are two types of demineralization plant, two-bed and mixed-bed. A two-bed system employs separate cation and anion resin beds. Mixed-bed deionizers utilize both resins in the same vessel. The highest quality water is produced by mixed-bed deionizers, while two-bed deionizers have a larger capacity. All Demineralised Plant will eventually be exhausted from use. To regenerate the resin and increase the dm plant efficiency, it is regenerated. The regeneration process is slightly different for a mixed-bed dm plant compared to the two-bed dm plant.

Two Bed DM Plants :This process first exchanges the cations of the salts for the hydrogen ions and then exchanges the anions of the salts for the hydroxide ions. A dm plant consists of two pressure vessels containing cation and anion exchange resins. Various types of ion exchange resin can be used for the cation and the anion process, depending on the type of impurities in water and what the final water is used for. Sizes of dm plants vary from compact trolley mounted to bigger one.
A two-bed dm plant contains either cation or anion resin beads. In most cases, there are two, single-bed ion exchangers in series. The first is a cation bed and the second is an anion bed. Impurities in plant water are replaced with hydrogen ions in the cation bed and hydroxyl ions in the anion bed. The hydrogen ions and the hydroxyl ions then combine to form pure water.

Mixed Bed Dm Plants : A mixed-bed dm plant is a dm plant in which the cation and anion resin beds are mixed together. In effect, it is equivalent to a number of two-steps dm plant in series. In a mixed-bed dm plant, more impurities are replaced by hydrogen and hydroxyl ions and the water that is produced is extremely pure. The conductivity of this water can often be less than 0.06 microns per centimeter.