What does mixed resin mean in practice?
Close contact of the H+ and OH− resin allows the exchange to be repeated many times in one layer and achieve very low conductivity.
When does it matter?
Regeneration of separated components is complex, so small mixed bed cartridges are usually replaced when exhausted.
Which solutions are related to it?
It is fed with RO water, monitors resistivity and limits contact with CO2 and organic pollutants.