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:
Jan. 07, 2020
Filed:
Dec. 18, 2015
Applicant:
Kurita Water Industries Ltd., Tokyo, JP;
Inventor:
Nozomu Ikuno, Tokyo, JP;
Assignee:
KURITA WATER INDUSTRIES LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 9/00 (2006.01); B01D 61/08 (2006.01); B01D 61/58 (2006.01); C02F 1/20 (2006.01); C02F 1/32 (2006.01); C02F 1/42 (2006.01); B01D 19/00 (2006.01); B01D 61/02 (2006.01); C02F 1/44 (2006.01); C02F 103/04 (2006.01); B01D 15/36 (2006.01); C02F 101/30 (2006.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); B01D 15/362 (2013.01); B01D 15/363 (2013.01); B01D 19/0031 (2013.01); B01D 61/025 (2013.01); B01D 61/08 (2013.01); B01D 61/58 (2013.01); C02F 1/20 (2013.01); C02F 1/32 (2013.01); C02F 1/42 (2013.01); B01D 2311/2619 (2013.01); B01D 2311/2623 (2013.01); B01D 2311/2653 (2013.01); C02F 1/441 (2013.01); C02F 2001/422 (2013.01); C02F 2001/425 (2013.01); C02F 2101/30 (2013.01); C02F 2103/04 (2013.01);
Abstract
The present invention provides an apparatus and method for producing ultrapure water of extremely high purity that sufficiently meets the requirement for its quality at low production cost with reduced footprint. The apparatus for producing ultrapure water includes a pretreatment system, a primary water purification system, and a subsystem, wherein the primary water purification system includes a high-pressure reverse osmotic membrane separation unit, a degassing unit, an ultraviolet oxidation unit, and an ion-exchange unit in this order.