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. 30, 2022

Filed:

Dec. 13, 2018
Applicants:

Toyo University, Tokyo, JP;

Toyo Tanso Co., Ltd., Osaka, JP;

Inventors:

Tatsuo Sumino, Gunma, JP;

Satoshi Sakuma, Gunma, JP;

Tetsuro Tojo, Osaka, JP;

Ai Ishikawa, Osaka, JP;

Tomoya Nakazono, Osaka, JP;

Masatoshi Takeshita, Osaka, JP;

Assignees:

TOYO UNIVERSITY, Tokyo, JP;

TOYO TANSO CO.. LTD., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/34 (2006.01); C02F 3/30 (2006.01); C02F 3/00 (2006.01); C02F 101/16 (2006.01);
U.S. Cl.
CPC ...
C02F 3/34 (2013.01); C02F 3/307 (2013.01); C02F 2003/003 (2013.01); C02F 2101/16 (2013.01);
Abstract

[Problem] A carrier for retaining anammox bacteria, an anammox bacteria-adhered particle, and a wastewater treatment apparatus are provided that can remarkably reduce the start-up period for obtaining a nitrogen removal speed of 1 kg-N/m/day. [Solution] A carrier for retaining anammox bacteria includes carbon particles. The carbon particles are desirably graphite particles, particularly isotropic graphite particles. The carbon particles desirably have a zeta potential of −35 mV to 0 mV and an average particle size of 2 μm to 1000 μm.


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