Satisfying the highest demands placed on demineralised water

Demineralised water is needed in many industrial and commercial processes as well as in hospitals, laboratories and medical technology. The salts dissolved in raw water can have severe consequences, meaning that demineralisation is crucially important.

The technologies conventionally used for demineralisation include ion exchange, electrodeionisation (EDI) and various membrane technologies such as reverse osmosis.

Demineralisation by ion exchange involves passing the raw water through synthetic resins consisting of tiny spheres. All of the positively charged ions (cations) and negatively charged ions (anions) are removed from the raw water and are replaced by hydrogen ions and hydroxide ions, which then combine to form pure water (H2O). EnviroFALK ion exchange cartridges are suitable for applications requiring low to medium demineralisation. A special service that we offer is the regeneration of the resin cartridges using the EnviroFALK regeneration station.

Demineralisation using membrane technology, such as reverse osmosis, involves the water being purified being pressed through a semipermeable membrane. The special membrane is only permeable to pure water, whilst all other substances, such as the salts dissolved in the water ‒ except for an extremely small residual salt content ‒ bacteria and organic compounds, are held back.


EnviroFALK reverse osmosis as an example of demineralisation.
EnviroFALK reverse osmosis as an example of demineralisation.