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.
Patent No.:
Date of Patent:
Jun. 19, 2018
Filed:
Oct. 22, 2014
Applicant:
Ebara Corporation, Tokyo, JP;
Inventors:
Takeshi Izumi, Tokyo, JP;
Makoto Komatsu, Tokyo, JP;
Assignee:
EBARA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21F 9/12 (2006.01); B01J 47/028 (2017.01); B01J 47/04 (2006.01); C02F 1/42 (2006.01); C02F 1/70 (2006.01); G21C 19/307 (2006.01); B01J 47/026 (2017.01); B01J 41/05 (2017.01); C02F 101/00 (2006.01); C02F 101/10 (2006.01); C02F 103/02 (2006.01); C02F 103/04 (2006.01);
U.S. Cl.
CPC ...
B01J 47/028 (2013.01); B01J 41/05 (2017.01); B01J 47/026 (2013.01); B01J 47/04 (2013.01); C02F 1/42 (2013.01); C02F 1/705 (2013.01); G21C 19/307 (2013.01); G21F 9/12 (2013.01); C02F 2001/422 (2013.01); C02F 2001/425 (2013.01); C02F 2001/427 (2013.01); C02F 2101/006 (2013.01); C02F 2101/10 (2013.01); C02F 2103/023 (2013.01); C02F 2103/04 (2013.01);
Abstract
A method for purifying water in a spent fuel pool in a nuclear power plant, the method including passing the water at a linear flow velocity of 50 m/h or less through a purification apparatus. The apparatus includes an ion exchange resin layer and a metal-doped resin layer laid at a bed height of 2 cm or more on a surface layer of the ion exchange resin layer. The method includes contacting the water with the metal-doped resin layer to decompose a pro-oxidant contained in the water and subsequently contacting the water with the ion exchange resin to produce purified water.