Ion Exchange Technologies

Ion exchange technologiesThese are chemical treatment systems that remove unwanted ions from water using selective resins. This technology plays a critical role in many industrial and domestic applications, such as reducing water hardness, removing ionic contaminants, and achieving high-purity water.

🟦 Water Softening Systems

Water softening systemsIt's based on the principle of removing calcium (Ca²⁺) and magnesium (Mg²⁺) ions, which cause hardness in water, using sodium-based cationic resins. This process is accomplished through ion exchange. As hard water is passed through an ion exchange resin bed, the Ca²⁺ and Mg²⁺ ions are replaced by sodium (Na⁺) ions in the resin, thus softening the water.

Over time, the resin surface becomes saturated with Ca²⁺ and Mg²⁺ ions. In this case, a regeneration process is performed to restore the resin particles' fertility. During this process, the resin is usually washed with salt water (NaCl) to restore its original state.

Things to Consider When Choosing a Water Softening System:

  • Tank volume appropriate to the amount of resin

  • Peak flow and nominal flow calculation according to water hardness

  • The ideal speed of water passing through the resin bed

  • Pre-treatment is used to eliminate the factors that negatively affect the system.

Areas of Use:

  • Food and beverage production

  • Pre-treatment before reverse osmosis systems

  • Chemical and pharmaceutical industry

  • Surface and groundwater treatment

  • Supply of clean water and boiler feed water

🟦 Deionization Systems

Deionization (DI) systems, which removes positive (cation) and negative (anion) ions from water, provides high-purity water. These systems are widely used in areas requiring pure water, such as laboratories, glass, pharmaceutical, and cosmetics industries.

The system consists of two stages: cationic and anionic resins. First, water, from cationic resin positive ions are replaced with hydrogen (H⁺) ions. Then anionic resin The negative ions are replaced by hydroxide (OH⁻) ions. The combination of these ions produces H₂O, or pure water.

In applications requiring high levels of purity mixed bed ion exchange systems (Mixed Bed) In these systems, cation and anion resins are contained in a single unit, ensuring extremely high purity water production.

At the end of their service life, the resins reach saturation and are reactivated through a regeneration process. Cationic resins are regenerated with acid, and anionic resins are regenerated with caustic.

Areas of Use of Deionization Systems:

  • Automotive industry

  • Chemical and pharmaceutical production

  • Cosmetic product manufacturing

  • Laboratories

  • Surface coating and electroplating processes

  • Power plants

🟦 Dealkalization Systems

Dealkalization systemsaims to control high alkalinity levels in water. Alkalinity increases depending on the concentration of carbonate (CO₃²⁻) and bicarbonate (HCO₃⁻) ions in the water. This causes white precipitate formation in industrial processes, equipment damage, and reduced system efficiency.

Dealkalization process, carbonate and bicarbonate selective anionic resins These systems are generally installed upstream of water softening units, reducing both the workload of the softening systems and salt consumption. At the same time, savings of %6–8% are achieved in the chemicals used in the system.

Advantages of Dealkalization Systems:

  • Preventing corrosion that may occur in water transmission systems

  • Reducing chemical use and operating costs

  • Increasing facility efficiency

  • Extending equipment life