Demineralized

Water Treatment

Overview

A facility that produces pure water by removing cation and anionic components contained in water using ion exchange resin with raw water that has undergone coagulation and sedimentation.

The demi. water system can consist of various combinations according to the processing water quality required, and the most common configuration consists of cation exchanger, degasifier, anion exchanger and mixed bed polisher.

Flow Diagram

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Our Solutions

Cation Exchanger Tower

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Technical Features

Applications

  • Cation exchanger tower removes cations (Na+, K+, Ca++, Mg++, Mn++, Fe+++, etc) in water by passing raw water through a cation exchange resin.

  • Cation exchange resin is an insoluble polymer acid and is classified into strong acid cation exchange resin and weak acid cation exchange resin according to the acidic strength of the exchanger.

  • Pressure Vessel Code : ASME Sec.VIII Div.I or KS B 6750

  • Applicable Materials : 

       - Vessel : Carbon Steel + Rubber Lining
       - Internal Parts : SS316L, PP, PVDF

  • Regeneration Chemicals : HCl or H2SO4

  • Pharmaceutical water

  • Food process water, cosmetic process water

  • Electronic and semiconductor process water

Degasifier

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Technical Features

Applications

  • Degasifier removes carbon dioxide dissolved in the water by blowing air in the opposite direction to the flow of water through packing inside the degasifier through cation exchanger, and it can reduce the load of the anion exchange resin at the back, reducing the amount of anion exchange resin, as well as reducing chemical consumption during regeneration.

  • Degasifier & Storage Tank Code : API 650 or KS B6255

  • Applicable Materials : 
     - Vessel : Carbon Steel + Rubber Lining (3mm)
     - Internal Parts : SS316, PP, PVDF

  • Pharmaceutical water

  • Food process water, cosmetic process water

  • Electronic and semiconductor process water

Anion Exchanger Tower

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Technical Features

Applications

  • Anion exchange tower removes anions (Cl-, SO4--, HCO3-, etc) from the water by passing raw water through the anion exchange resin.

  • Anion exchange resin is an insoluble synthetic resin and is classified into strong basic anion exchange resin and weak basic anion exchange resin depending on the strength of the basic exchanger.

  • Pressure Vessel Code : ASME Sec.VIII Div.I or KS B 6750

  • Applicable Materials : 
     - Vessel : Carbon Steel + Rubber Lining
     - Internal Parts : SS316, PP, PVDF

  • Regeneration Chemicals : NaOH

  • Pharmaceutical water

  • Food process water, cosmetic process water

  • Electronic and semiconductor process water

Mixed Bed Polisher

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Technical Features

Applications

  • MBP removes dissolved ions from water by mixing cation exchange resin and anion exchange resin in a single tower and passing through the raw water through it.

  • To obtain a high purity of 0.2 μs/cm or less, go through cation exchanger, degasifier, and anion exchanger and install MBP at the back to produce pure water.

  • Pressure Vessel Code : ASME Sec.VIII Div.I or KS B6750

  • Applicable Materials : 
     - Vessel : Carbon Steel + Rubber Lining
     - Internal Parts : SS316L, PP, PVDF

  • Regeneration Chemials : 
     - Cation Resin : HCl or H2SO4 
     - Anion Resin : NaOH 

  • Pharmaceutical water

  • Food process water, cosmetic process water

  • Electronic and semiconductor process water

Water/Chemical Storage Tank

Applicable Tank Type

Applicable 

Materials

  • Cone Roof Tank

  • Horizontal Cylindrical Tank

  • Rectangular Tank

  • Carbon Steel with Epoxy Coating

  • Carbon Steel with FRP Lining

  • Carbon Steel with PTFE Coating

  • Carbon Steel with Rubber Lining

  • Stainless Steel 304

  • Stainless Steel 316

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