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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.:

US 9938172 B1

PDFFull Text
Date of Patent:
Apr. 10, 2018

Filed:

Apr. 10, 2012

Wastewater treatment device

Applicants:

Kazuhide Kamimura, Hyogo, JP;

Takuhiro Maeda, Hyogo, JP;

Morikata Nishida, Hyogo, JP;

Kosuke Shigiishi, Hyogo, JP;

Seiichi Terakura, Tokyo, JP;

Hideo Suzuki, Tokyo, JP;

Gaku Kondo, Tokyo, JP;

Inventors:

Kazuhide Kamimura, Hyogo, JP;

Takuhiro Maeda, Hyogo, JP;

Morikata Nishida, Hyogo, JP;

Kosuke Shigiishi, Hyogo, JP;

Seiichi Terakura, Tokyo, JP;

Hideo Suzuki, Tokyo, JP;

Gaku Kondo, Tokyo, JP;

Assignee:

MITSUBISHI HITACHI POWER SYSTEMS ENVIRONMENTAL SOLUTIONS, LTD, Yokohama-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Claire A Norris

Int. Cl.
CPC ...
C02F 3/12 (2006.01); C02F 9/14 (2006.01); C02F 3/00 (2006.01); C02F 3/06 (2006.01); C02F 3/04 (2006.01); C02F 103/34 (2006.01); C02F 1/32 (2006.01); C02F 1/46 (2006.01); C02F 1/66 (2006.01);
U.S. Cl.
CPC ...
C02F 3/006 (2013.01); C02F 3/04 (2013.01); C02F 3/06 (2013.01); C02F 3/1226 (2013.01); C02F 3/1268 (2013.01); C02F 3/1273 (2013.01); C02F 1/32 (2013.01); C02F 1/4604 (2013.01); C02F 1/4608 (2013.01); C02F 1/66 (2013.01); C02F 2103/34 (2013.01); C02F 2209/001 (2013.01); C02F 2209/08 (2013.01); C02F 2209/20 (2013.01); C02F 2209/40 (2013.01); Y02W 10/15 (2015.05);
Abstract

A wastewater treatment device includes a first biological treatment device () that treats wastewater through a membrane-separated activated sludge method; a second biological treatment device () that treats wastewater through a biofilm method; measurement units () that measure load concentration and flow rate in the wastewater flowing upstream of the first biological treatment device () and the second biological treatment device (); and a control unit () that calculates a load quantity from the load concentration and the flow rate, determines, according to the load quantity, a distribution ratio between a flow rate of the wastewater supplied to the first biological treatment device () and a flow rate of the wastewater supplied to the second biological treatment device (), and adjusts the flow rate of the wastewater supplied to the first biological treatment device () and the second biological treatment device (), based on the distribution ratio.

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