Countercurrent sodium ion exchanger

Overview

Sodium ion exchangers are used to reduce the hardness of water. Raw water passes through the resin in the exchanger, where calcium and magnesium ions interact with the sodium ions in the exchanger

Exchange, the raw water is softened into soft water containing very little calcium and magnesium salts for boiler use. Sodium ions have a high solubility in water and do not

Hard scale forms inside the boiler and is easy to remove. The suspended solids content in the water entering the exchanger is less than 5 milligrams per liter.

The sodium ion exchanger is a vertical cylindrical device equipped with a certain height of sodium type cation resin. Softening reaction formula: 2NaR+MgR+2Na (R - crossing)

After running for a certain period of time, most of the exchangers become saturated and become calcium or magnesium type, losing their exchange capacity,

At this point, a salt solution is used to replace calcium and magnesium ions with sodium ions through the exchange layer, reducing the exchange agent to the sodium form and restoring the exchange

Continue using after vitality. Regeneration reaction equation: MgR+NaCl → 2NaR+MgCL2