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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 11753319 B1

PDFFull Text
Date of Patent:
Sep. 12, 2023

Filed:

Feb. 28, 2023

Method for intensification of advanced biological nitrogen removal and reduction of endocrine disrupting toxicity

Applicant:

Nanjing University, Nanjing, CN;

Inventors:

Hui Huang, Nanjing, CN;

Lili Jin, Nanjing, CN;

Jun Hu, Nanjing, CN;

Hongqiang Ren, Nanjing, CN;

Assignee:

NANJING UNIVERSITY, Nanjing, CN;

Attorney:

CBM PATENT CONSULTING, LLC

Primary Examiner:

Clare M Perrin

Int. Cl.
CPC ...
C02F 1/72 (2023.01); B01J 20/04 (2006.01); B01J 20/26 (2006.01); B01J 20/32 (2006.01); C02F 1/28 (2023.01); C02F 1/463 (2023.01); C02F 3/28 (2023.01); C02F 9/00 (2023.01); C02F 1/00 (2023.01); C02F 101/30 (2006.01);
U.S. Cl.
CPC ...
C02F 1/722 (2013.01); B01J 20/04 (2013.01); B01J 20/267 (2013.01); B01J 20/32 (2013.01); C02F 1/288 (2013.01); C02F 1/463 (2013.01); C02F 3/28 (2013.01); C02F 9/00 (2013.01); C02F 1/00 (2013.01); C02F 2101/305 (2013.01); C02F 2305/02 (2013.01);
Abstract

A method for intensification of advanced biological nitrogen removal and reduction of endocrine disrupting toxicity, and belongs to the technical field of advanced wastewater treatment includes the steps of utilizing the reaction of calcium sulfate and hydrogen peroxide solution under alkaline conditions to prepare nano-calcium peroxide (n-CP) oxygen-releasing materials, then the polyvinyl alcohol is used as a framework material, the sodium carboxymethyl cellulose is used as a bonding agent, the stearic acid is used as buffering agent and stabilizing agent, the prepared n-CP is used as an oxygen-releasing material, and the quartz sand is used to increase the material density to the sustained-release calcium peroxide nanoparticles (SR-nCPs) through the encapsulation method.

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