Method of sterilization and electrolytic water ejecting apparatus

• US 20070023273A1
• Filed: 06/15/2006
• Published: 02/01/2007
• Est. Priority Date: 06/16/2005
• Status: Active Grant

• Current Assignee: De Nora Permelec Ltd. (Industrie De Nora S.p.A), Institute of National Colleges of Technology Japan
• Original Assignee: Institute of National Colleges of Technology Japan, Permelec Electrode, Ltd.
• Inventors: Nishiki, Yoshinori, Uno, Masaharu, Kitaori, Noriyuki, Furuta, Tsuneto
• Granted Patent: US 7,887,679 B2
• Time in Patent Office: Days
• US Class Current: 204/164
• CPC Class Codes: A61L 2/183 Ozone dissolved in a liquid
• CPC Class Codes: A61L 2/186 Peroxide solutions
• CPC Class Codes: A61L 2/202 Ozone
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 2202/11 Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• CPC Class Codes: C02F 1/46114 Electrodes in particulate form or with conductive and/or non conductive particles between them
• CPC Class Codes: C02F 1/4672 by electrooxydation
• CPC Class Codes: C02F 1/66 by neutralisation; pH adjustment for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58
• CPC Class Codes: C02F 2001/46138 Electrodes comprising a substrate and a coating
• CPC Class Codes: C02F 2001/46152 characterised by the shape or form electrodes in particulate form or with conductive or non-conductive particles between them C02F1/46114
• CPC Class Codes: C02F 2201/003 Coaxial constructions, e.g. a cartridge located coaxially within another
• CPC Class Codes: C02F 2201/46115 Electrolytic cell with membranes or diaphragms
• CPC Class Codes: C02F 2201/46125 Electrical variables
• CPC Class Codes: C02F 2209/23 O3
• CPC Class Codes: C02F 2303/04 Disinfection
• CPC Class Codes: C02F 2305/04 Surfactants, used as part of a formulation or alone
• CPC Class Codes: C02F 2307/02 as part of a bottle

Abstract

The present invention provides a method of sterilization with an electrolytic water, including: electrolyzing a raw water with an electrolytic unit including: a cathode; and an anode at least having a part containing a conductive diamond to prepare an electrolytic water; and ejecting the electrolytic water to a substance to be sterilized, and an electrolytic water ejecting apparatus.

Claims

1. A method of sterilization with an electrolytic water, comprising:

electrolyzing a raw water with an electrolytic unit comprising;

a cathode; and

an anode at least having a part containing a conductive diamond to prepare an electrolytic water; and

ejecting the electrolytic water to a substance to be sterilized.

2. The method of sterilization according to claim 1,

wherein the raw water is a pure water, and the electrolytic water is an ozone-containing water.

3. The method of sterilization according to claim 2,

wherein an ozone concentration of the ozone-containing water is 0.1 ppm or higher.

4. The method of sterilization according to claim 1,

wherein the electrolytic unit further comprises a voltage changing device to control a voltage to be applied so as to control the amount of the electrolytic water to be prepared.

5. The method of sterilization according to claim 1,

wherein the raw water contains at least one of a pH adjuster and a surfactant.

6. An electrolytic water ejecting apparatus comprising:

a vessel containing a raw water;

an electrolytic unit comprising;

a cathode; and

an anode at least having a part containing a conductive diamond; and

a head to eject an electrolytic water prepared by electrolyzing the raw water with the electrolytic unit.

7. An electrolytic water ejecting apparatus according to claim 6, which further comprising a sheet-form diaphragm member,

wherein the anode has a shape of a rod and the cathode has a shape of a wire, and the sheet-form diaphragm member is disposed around the anode and the cathode is disposed around the sheet-form diaphragm member.