The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 13, 2021

Filed:

Nov. 26, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Takahiro Kitai, Hyogo, JP;

Genichiro Matsuda, Nara, JP;

Gaku Miyake, Osaka, JP;

Yoshio Yamada, Hyogo, JP;

Naofumi Hino, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 15/08 (2006.01); C25B 9/00 (2021.01); C25B 9/18 (2006.01); C02F 1/461 (2006.01); C02F 1/46 (2006.01);
U.S. Cl.
CPC ...
C02F 1/46109 (2013.01); C02F 1/4608 (2013.01); C02F 2001/46133 (2013.01); C02F 2001/46171 (2013.01); C02F 2201/4611 (2013.01); C02F 2201/4616 (2013.01); C02F 2201/4618 (2013.01); C02F 2301/02 (2013.01); C02F 2305/026 (2013.01);
Abstract

A liquid treatment device that achieves an effective treatment by forcibly contacting a swirl flow of a hydrogen peroxide-containing treated liquid with a liquid to be treated that has been processed to contain copper ions or iron ions includes a rod-like first electrode, a plate-like second electrode formed of a copper- or iron-containing metal, and a first treatment vessel that causes a liquid to swirl and generate a gas phase in a swirl flow of the liquid. A pulse voltage is applied to the generated gas phase to generate a plasma. The second electrode serves as an anode, and reaches inside of a supply section for a liquid to be treated. The liquid to be treated containing the generated copper ions or iron ions is forcibly brought into contact with hydrogen peroxide generated by the plasma. In this way, the Fenton's reaction effectively takes place, and the liquid treatment performance improves.


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