APPARATUS USING SWITCHABLE WATER, METHOD FOR SEPARATING SOLUTE FROM AQUEOUS SOLUTION, AND IONIC STRENGTH ADJUSTMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method and system for reversibly converting water between an initial ionic strength and an increased ionic strength, using a switchable additive.SOLUTION: Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with CO, CSor COS. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, heating, agitating, introducing a vacuum or partial vacuum, or any combination thereof.SELECTED DRAWING: Figure 1