Permelec Electrode Ltd.

Institute of National Colleges of Technology, Japan

Hozumi Tanaka

Yoshinori Nishiki

Tsuneto Furuta

Shuhei Wakita

Philippe Rychen

Masao Sekimoto

Noriyuki Kitaori

Katsumi Hamaguchi

Genzo Yamane

Kota Sekido

Laurent Pupunat

The present invention provides: a membrane-electrode assembly having a first electrode having a shape of a rod-form or a cylindrical-form, a strip-form diaphragm covering the periphery of the first electrode, and a second electrode disposed on a surface of the strip-form diaphragm; an electrolytic unit containing the membrane-electrode assembly; an electrolytic water ejecting apparatus containing the electrolytic unit; and a method of sterilization using the membrane-electrode assembly.

Membrane-electrode assembly, electrolytic unit using the same, electrolytic water ejecting apparatus, and method of sterilization

A method is disclosed, which is capable of subjecting microorganisms to sterilizing or bacteriostatic treatment with good efficiency as compared with the conventional sterilizing or bacteriostatic method using a noble metal electrode. Microorganism-containing water to be treated is electrochemically treated using an anode having conductive diamond to bring the microorganism into contact with the anode, thereby undergoing sterilization. Since the conductive diamond has a high oxidation potential as compared with other electrode substances, direct oxidation reaction due to contact between a microorganism in water to be treated, such asbacteria, and the anode surface occurs strongly as compared with other electrodes, thereby enabling effective sterilization. The conductive diamond has a high ability to generate ozone and has an excellent formation efficiency with respect to the generation of hydrogen peroxide and radicals. Accordingly, an indirect sterilizing effect can also be expected.

Electrochemical sterilizing and bacteriostatic method

Growing community of inventors

Fujisawa, Japan

Hozumi Tanaka