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:
Aug. 12, 2025

Filed:

Aug. 03, 2020
Applicant:

Organo Corporation, Tokyo, JP;

Inventor:

Yuki Nakamura, Tokyo, JP;

Assignee:

ORGANO CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/44 (2023.01); B01D 61/02 (2006.01); B01D 61/08 (2006.01); B01D 61/12 (2006.01); B01D 65/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/441 (2013.01); B01D 61/026 (2022.08); B01D 61/08 (2013.01); B01D 61/12 (2013.01); B01D 65/08 (2013.01); B01D 2317/022 (2013.01); B01D 2317/025 (2013.01); B01D 2317/04 (2013.01); B01D 2317/06 (2013.01); B01D 2321/16 (2013.01); B01D 2321/40 (2013.01); C02F 2209/006 (2013.01); C02F 2209/03 (2013.01); C02F 2209/05 (2013.01); C02F 2209/06 (2013.01); C02F 2301/08 (2013.01); C02F 2303/16 (2013.01); C02F 2303/22 (2013.01);
Abstract

A water treatment system including: a reverse osmosis membrane device A for treating a water to be treated; a reverse osmosis membrane device E for treating permeated water from device A; a reverse osmosis membrane device B for treating concentrated water from device A or E; a reverse osmosis membrane device C for treating concentrated water from device E or A; and each of water flow lines through which the concentrated water and permeated water from devices A to E respectively flow downstream, wherein the connections of each of the water flow lines are switchable so that while the concentrated water from device E flows to device B to wash device B, the concentrated water from device A is treatable by device C, and while the concentrated water from device E flows to device C to wash device C, the concentrated water from device A is treatable by device B.


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