Sodium Monitoring
in Water Treatment Processes
Application Guide
AG/AI–024_4
Cation Bed
Reduction of
positively
charged
dissolved
solids
Anion
Exchange
Bed
Reduction of
negatively
charged
dissolved
solids
Mixed Bed
Further reduction
of any remaining
concentrations of
both positively and
negatively
charged dissolved
solids to produce pure
water
Raw
Water
In
High Purity
Water Out
8037 Sodium Monitor
Typical Range: 0.1ppb to 10ppm
Normal sodium concentration: 100ppb
(dependent upon type of exchange and
raw water quality)
8037 Sodium Monitor
Typical Range: 0.01ppb to 1.0ppm
Normal sodium concentration: 1.0ppb
Sample
to
sodium
Monitor
Sample
to
sodium
Monitor
The illustration above shows a simple demineralisation
plant where anions are exchanged with hydroxyl ions
and cations are exchanged with hydrogen ions
(by the use of ion exchange resins) to produce pure,
mineral-free water. ABB sodium monitors are used
for continuous monitoring of sodium in the process
water.
