Desalination systems for industry

Decarbonisation/Partial desalination

With softening, only the ions of the hardeners calcium and magnesium are exchanged. With decarbonisation, on the other hand, the hydrogen carbonate salts of the calcium and magnesium, the so-called carbonate resins, are removed.
This process results in partial desalination of the water. Partial desalination occurs via filtration using a weakly acidic cation exchanger loaded with hydrogen ions.
Carbon dioxide results from decarbonisation and has to be removed in a downstream percolator. In many cases, decarbonisation is preceded by softening. Regeneration primarily occurs with hydrochloric acid.
The graphic shows the water matrix after decarbonisation.

System technology

The system structure is similar to that of softening systems or of demineralisation systems.
We would be pleased to provide further information on request. Or even better: Call us.

Salesteam RWT
Erlenweg 42
33335 Gütersloh