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Demineralisation plants

our plants

For complete water desalination

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Demineralisation plants are systems used to remove almost all mineral salts dissolved in the water, producing demineralised or deionised water. This process is essential in applications where water with an extremely low salt content is required, such as in the production of water for boilers, chemical laboratories and electronic industries.

 

Blue Water Technology  designs and realizes aquaspecifically calibrated demineralization plants on the needs of different industrial sectors and client companies.

Demineralization plants: the techniques

Often the only removal of hardness by softening the water is not sufficient, and it is necessary to use more efficient water treatment plants , which do not just sweeten hard water but are instead called on to desalinate completely.

 

This process, called demineralization, will be carried out by means of resin-type demineralization plants or membrane demineralization plants. The choice of the most efficient water treatment plant depends on the initial water source and the quality of the water you want to obtain. In some cases it may be necessary to reach a high efficiency demineralization, for the production of the so-called ultra-pure water.

 

Ultra-pure water production plants  are usually installed in the tail to ion exchange resin demineralization or reverse osmosis demineralization plants. The techniques normally used to obtain ultra-pure water are those with mixed bed resins filters  or EDI (electrodeionization with semi-permeable membranes).

  • Ion-exchange resin plant demineralization uses ion-exchange resins which replace the dissolved salt ions (such as calcium, magnesium, sodium, chloride, sulphate) with hydrogen (H+ ) and hydroxide (OH- ) ions, which combine to form pure water (H2O).
  • Reverse osmosis demineralization is a filtration process that uses a semi-permeable membrane to remove most of the salts and impurities from the water.
  • Seawater desalination with reverse osmosis plants for seawater or brackish water (Osmosis Sea Water): the technique uses reverse osmosis membranes specifically designed to treat seawater or brackish water, removing salts and other impurities to produce drinking water or for industrial uses.
  • Filters with mixed bed resins (ultra-pure water production): the process involves a combination of cationic and anionic exchange resins in a single bed to remove almost all dissolved ions, producing ultra-pure waterfor critical applications such as semiconductor production and other high-tech industries.
  • EDI (ultra-pure water production): This technique combines electrodialysis with ion exchange resins to produce continuously deionised water without the use of regenerating chemicals.
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