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Mixed Bed Deionization

Mixed Bed Deionization Plant

Mixed bed deionization involves the use of a single vessel containing a mixture of cation and anion exchange resins. The resin beads are typically small and of similar size to ensure thorough mixing and maximum contact between the water and the resin.

Product Brochure
Plant Capacity

1000 LPH

Voltage

240V

Water Source Type

River Water

Material

SS 304 & FRP

Automation Grade

Manual

Flow Rate

500 LPH – 5000 LPH

Grade

Manual

Deliver Type

PAN India

Treatment Stages

Primary Treatment, Secondary Treatment, Tertiary Treatment

Process of Mixed Bed Deionization:

The process of mixed bed deionization is similar to that of conventional ion exchange, but with both cation and anion exchange resins combined in a single vessel:

  • Ion Exchange:

    Water flows through the mixed bed resin, where both cation and anion exchange processes occur simultaneously.
    • Cation Exchange: Positively charged ions (cations) in the water, such as calcium (Ca2+), magnesium (Mg2+), sodium (Na+), and potassium (K+), are exchanged for hydrogen ions (H+) or other cations present on the resin.
    • Anion Exchange: Negatively charged ions (anions) in the water, such as chloride (Cl-), sulfate (SO42-), nitrate (NO3-), and carbonate (CO32-), are exchanged for hydroxide ions (OH-) or other anions present on the resin.

  • Regeneration:

    Over time, as the resin becomes saturated with ions, it requires regeneration to restore its ion exchange capacity. This typically involves flushing the mixed bed with a concentrated solution of acids and bases to remove the accumulated ions and regenerate the resin for continued use.

Applications of Mixed Bed Deionization:

Mixed bed deionization is indispensable in industries and applications where ultra-pure water is required:

  • Semiconductor Manufacturing:

    Ultra-pure water is essential for rinsing and cleaning semiconductor wafers during the manufacturing process to ensure the quality and reliability of electronic components.

  • Pharmaceuticals:

    Mixed bed deionization is used in pharmaceutical manufacturing for producing purified water for drug formulations, laboratory testing, and cleaning equipment.

  • Laboratories:

    It is widely used in research laboratories for experiments, analytical techniques, and preparing solutions where high-purity water is necessary to avoid interference with experimental results.

  • Power Generation:

    Mixed bed deionization is employed in power plants for producing high-purity water for boiler feedwater, cooling systems, and steam generation to prevent scale formation and corrosion.

  • Electronics:

    It is used in electronics manufacturing for cleaning components, rinsing circuit boards, and preventing mineral deposits in cooling systems to maintain the integrity and performance of electronic devices.

Material of Construction available in Mild Steel Epoxy Coated (MSEP), Mild Steel Rubber Lined (MSRL), Mild Steel FRP Lined (MSFRP), , Fiber Reinforced Plastic (FRP).

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