·Ultra-pure water equipment is a water treatment system that produces ultra-pure water using reverse osmosis and electrical deionization technology.

Under the influence of a direct current electric field, cations and anions in the ion exchange resin of the freshwater chamber migrate towards the negative and positive poles, respectively, through the channels formed by the resin and the membrane. Cations permeate through the cation exchange membrane, while anions permeate through the anion exchange membrane, entering the concentrated water chamber to form concentrated water.

·Simultaneously, cations and anions in the EDI process exchange with hydrogen and hydroxide ions in the ion exchange resin, forming ultra-pure water (high purity water). The super-limited current causes a continuous regeneration of the ion exchange resin with a large amount of hydrogen and hydroxide ions produced by the electrolysis of water.