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:
May. 10, 2022

Filed:

May. 16, 2019
Applicant:

Environmental Dynamics International, Inc., Columbia, MO (US);

Inventor:

Charles E. Tharp, Columbia, MO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 3/04 (2006.01); C02F 3/20 (2006.01);
U.S. Cl.
CPC ...
B01F 3/04241 (2013.01); B01F 3/0412 (2013.01); C02F 3/20 (2013.01); B01F 2003/04297 (2013.01); B01F 2003/04361 (2013.01); C02F 2201/002 (2013.01);
Abstract

A system and method for aerating and mixing wastewater that includes fine bubble diffusers located at least partially below a large bubble mixer. At least a portion of the gas discharged from the fine bubble diffusers is captured by the large bubble mixer and is reused by the large bubble mixer to form and release intermittent large bubbles. Prior to being captured by the large bubble mixer, the gas discharged by the fine bubble diffusers can aerate the wastewater. The large bubble mixer includes an accumulator that, upon becoming filled with gas, generates and releases a large bubble. Upon discharge from the large bubble mixer, the large bubbles generated therein may separate into a plurality of coarse bubbles for providing additional oxygen transfer and mixing of the wastewater. The system may include supply lines for supplying gas only to the fine bubble diffuser.


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