Demineralization is concerned with the removal of all dissolved mineral matter from water. Most common applications of demineralisation: Treatment of Boiler Feed Water (BFW), in order to maintain high heat-transfer efficiency in the boiler by preventing deposition of precipitated scale and corrosion or deterioration of surfaces in contact with water. When production of steam is related to power generation through a steam turbine, a higher water quality is mandatory to meet requirements of the turbine manufacturer. Pharmaceutical, Chemical and petrochemical sectors where it is used as a process fluid.
Demineralization can be roughly schematised in three different steps:
- Pretreatment, possibly featuring Water clarification, In-line clarification, Media Filtration, GAC adsorption, membrane separation (Microfiltration, Ultrafiltration)
- Deionisation that could be achieved through Ion Exchange or Reverse Osmosis often coupled with atmospheric or membrane degassing to remove the residual carbon dioxide.
- Polishing featuring Mixed Bed Exchangers or Electrodeionization (EDI)
On the market since 1958, ARTES can boast long experience with ion exchange and membrane processes. This comes from designing a vast range of plants, and from answering the most varied problems in all industrial sectors which has made Bono demineralisation plants the norm in the evolution of water treatment.