公开(公告)号：US20190112204A1

公开(公告)日：2019-04-18

申请号：US16087469

申请日：2017-04-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigeru SASABE ,  Tomoko TANI ,  Noriyoshi UEYA ,  Kazuo IMAI ,  Hiroaki KITAGAWA

IPC: C02F1/46 ,  C02F1/461 ,  C02F5/10

CPC classification number: C02F1/4602 ,  B01D61/445 ,  B01D61/46 ,  B01D61/50 ,  B01D61/54 ,  B01D65/02 ,  B01D2311/22 ,  B01D2311/24 ,  B01D2311/2649 ,  B01D2313/14 ,  B01D2313/48 ,  B01D2321/16 ,  B01D2321/223 ,  C02F1/46109 ,  C02F1/469 ,  C02F5/10 ,  C02F2001/46152 ,  C02F2201/005 ,  C02F2201/4611 ,  C02F2201/46115 ,  C02F2201/46145 ,  C02F2201/4616 ,  C02F2201/4618

Abstract: The water treatment device according to the present disclosure includes: an electrochemical cell having electrodes including a positive electrode and a negative electrode, and a bipolar membrane; a tank; a power supply configured to apply power to the electrodes; a water circulation flow path having at least the tank and the electrochemical cell and through which water circulates; a circulation device configured to circulate water in the water circulation flow path; a raw water supply path configured to supply raw water to the water circulation flow path; and a control device. In performing water softening treatment in the electrochemical cell where power is applied to the electrodes so as to remove ions from raw water and soft water is produced, the control device drives the circulation device so as to circulate water in the water circulation flow path.