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:
Jul. 16, 2019

Filed:

Jul. 22, 2016
Applicant:

Metawater Co., Ltd., Tokyo, JP;

Inventors:

Yuka Yamaguchi, Tokyo, JP;

Yusuke Hisamoto, Tokyo, JP;

Hiroshi Munehira, Tokyo, JP;

Shigeyuki Okada, Tokyo, JP;

Dabide Yamaguchi, Tokyo, JP;

Assignee:

Metawater Co., Ltd., Chiyoda-Ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/52 (2006.01); B01D 21/30 (2006.01); B01D 21/01 (2006.01); G01N 15/02 (2006.01); B01D 21/08 (2006.01); G01N 15/00 (2006.01);
U.S. Cl.
CPC ...
C02F 1/5209 (2013.01); B01D 21/01 (2013.01); B01D 21/08 (2013.01); B01D 21/30 (2013.01); G01N 15/02 (2013.01); C02F 2209/001 (2013.01); C02F 2209/003 (2013.01); C02F 2209/006 (2013.01); C02F 2209/105 (2013.01); G01N 2015/0092 (2013.01);
Abstract

Provided is a water treatment system that prevents overlook and misdetection of abnormal flocculation. The water treatment system includes a mix tank, a flocculation tank, a plurality of floc-particle-diameter measurement devices, a fault detection device that detects abnormal flocculation, and a notification device that notifies occurrence of the abnormal flocculation. The fault detection device includes: a calculator that calculates at least one of a difference and a ratio between particle diameters of floc; a storage that stores therein a tolerable range of at least one of the difference and the ratio between the particle diameters of floc; a determiner that, when the calculated value is within the tolerable range, determines that it is normal, and when the calculated value is outside the tolerable range, determines that it is abnormal; and an outputter that transmits an abnormal flocculation detection signal to the notification device.


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