“Water was purified by reverse osmosis, charcoal filtration, deionization, ion exchange, and ultraviolet irradiation.”

“It is a method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes.”

“Treatment is deionization, resulting in the mineral content being reduced to less than 10 parts per million.”

“Unlike filters, which only remove particles, the deionizer is an ion-exchange medium that electro-statically removes dissolved impurities.”

“After filtration, the resistivity of the water is adjusted by passing it through a deionizer cartridge.”

“The water treatment consisted of a deionizer with water softener backup.”