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Decarbonisation units
Low blowdown rate: decarbonisation
Decarbonisation units remove hydrogen carbonates of calcium and magnesium (also called carbonate hardness, carbonate alkalinity, and temporary hardness) dissolved in the water.
Decarbonisation is used to treat boiler feed water, for example, as it results in a significantly lower blowdown rate than water softening.
Decarbonisation units have weakly acidic ion exchange resins in the H form, which bind cations, calcium and magnesium to the ion exchange mass, whilst the hydrogen carbonate anion decomposes into carbon dioxide. The carbon dioxide (CO2) generated by the decomposition can be expelled from the water in a degassing tower installed downstream using air. The depleted ion exchange resin is regenerated with hydrochloric acid.
For further information, visit: EnviroFALK decarbonisation process technology
EnviroFALK decarbonisation units offer tangible benefits:
- The ideal process for removing carbonate hardness from large quantities of water
- Low regeneration agent consumption
- Minimal running costs
- Individually planned and manufactured