PURE WATER PRODUCTION SYSTEM AND PURE WATER PRODUCTION METHOD

    公开(公告)号:US20230331593A1

    公开(公告)日:2023-10-19

    申请号:US18029955

    申请日:2021-09-02

    IPC分类号: C02F1/44 C02F1/469

    摘要: A pure water production system includes a reverse osmosis membrane device; an electric deionized water production device that is disposed downstream of the reverse osmosis membrane device; and a control device that controls a processing condition of the reverse osmosis membrane device. The control device controls a processing condition of the reverse osmosis membrane device such that a removal rate of a specific substance of the electric deionized water production device is equal to or lower than a threshold value, and concentration of the specific substance in the treated water of the electric deionized water production device is equal to or lower than a prescribed value and specific resistance of the treated water of the electric deionized water production device is equal to or higher than a prescribed value.