Principle of resin purifying water quality
Regeneration process:When all exchanged ions on the resin are converted to calcium and magnesium, the resin becomes saturated and fails to regenerate. The process is as follows: firstly, the backwash flush surface closure of the impurity in the recycled salt salt absorption valve, high concentration brine by resin, calcium and magnesium ions on the resin squeezed out, will be fully restored to the ion exchange resin will restore the sodium ion and sodium ion resin.
The resin in the water softener also has the function of regeneration, which makes the use cycle grow
There are more ionic resins used in water softeners!The water softener is the application of ion exchange technology, through the exchange of calcium and magnesium ions and water on the function of resin, adsorption and excess calcium and magnesium ions in water, to remove the scale (calcium carbonate or magnesium carbonate) to.
What I know is that the ion exchange resin acts to displace the salt in the water. In fact, the replacement of salt is the two resin, respectively, the metal ions and acid radical replacement.The ion exchange resin is divided into cation exchange resin and anion exchange resin. Cation exchange resin can be metal ion exchange into hydrogen ions; anion exchange resin will be replaced by hydroxyl radical. The hydroxyl and hydrogen ions into water.In order to restore the exchange capacity, the failed exchange resin needs to be treated with strong acid and strong alkali respectively. The metal ions absorbed by the cation exchange resin are absorbed by acid, and the alkali solution absorbs the anion of the anion exchange resin. Treatment after water rinse liquid acid liquid residue on the line.Production process I have not touched, it should be the family can also operate, suitable for small-scale system, pure water equipment will not be too large. Now pure water plants are reverse osmosis membrane water production, large output, suitable for large-scale production, equipment costs are also large.I am a non professional. If there is anything wrong, please correct me.
