BRINE SYSTEMS

The resin has limited exchange capacity, which must be restored periodically through a process known as regeneration. The regeneration process reverses the calcium-sodium exchange by subjecting the resin to the high concentrations of sodium found in sodium chloride brine.

Water softeners often regenerate resin automatically. The frequency of regeneration is controlled by time or quantity of produced water. Separation of brining cycles and service flow is essential to avoid passing salt into the treated water.

Applying a high concentration of sodium to the resin reverses the ion exchange reaction. The high concentration of sodium is provided by a saturated sodium chloride (common table salt) solution.