METHOD AND APPARATUS FOR MANUFACTURING PURE WATER

摘要

Provided a method and apparatus for manufacturing pure water by causing ultraviolet-oxidized water from an ultraviolet oxidation device to come into contact with a platinum-metal-supporting catalyst resin, wherein degradation of the catalyst resin is prevented and hydrogen peroxide can be subjected to a decomposition treatment stably over a long period of time. A method and apparatus for manufacturing pure water by performing ultraviolet oxidation on to-be-treated water using the ultraviolet oxidation device (2), and then removing the hydrogen peroxide using a hydrogen peroxide removal device (4) in which a platinum catalyst is used, wherein the TOC in the water supplied to the ultraviolet oxidation device (2) is at a level of 5 ppb or less, and an anion exchange resin column (3) is installed in a stage following the ultraviolet oxidation device (2).