In this study, we intended to clarify the effect of various treatments such as magnetism, ultraviolet light irradiation and ultrasonic wave treatment on the acidic electrolyzed aqueous solutions and alkali halide aqueous solutions. The results have indicated that the available chloride concentration of acidic electrolyzed aqueous solution was decreased by these treatments. It was proved that these treatments increased hydroxyl radicals and bound water in the alkali halide aqueous solution.