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. 25, 2026

Filed:

Aug. 30, 2022
Applicant:

Evoqua Water Technologies Llc, Pittsburgh, PA (US);

Inventors:

Andrew Black, Clearfield, UT (US);

Luke Halverson, Anderson, SC (US);

Timothy Pickett, Salt Lake City, UT (US);

Rebeccah Chapman, New Peltz, NY (US);

Assignee:

Evoqua Water Technologies LLC, Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 9/00 (2023.01); C02F 1/00 (2023.01); C02F 1/52 (2023.01); C02F 3/00 (2023.01); C02F 3/28 (2023.01); C02F 1/44 (2023.01); C02F 1/66 (2023.01); C02F 1/72 (2023.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 101/20 (2006.01); C02F 103/18 (2006.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); C02F 1/008 (2013.01); C02F 1/5209 (2013.01); C02F 3/006 (2013.01); C02F 3/28 (2013.01); C02F 1/441 (2013.01); C02F 1/444 (2013.01); C02F 1/5245 (2013.01); C02F 1/66 (2013.01); C02F 1/722 (2013.01); C02F 2101/106 (2013.01); C02F 2101/163 (2013.01); C02F 2101/20 (2013.01); C02F 2103/18 (2013.01); C02F 2209/003 (2013.01); C02F 2209/04 (2013.01); C02F 2209/06 (2013.01);
Abstract

A method of treating selenium-containing wastewater comprises performing anoxic biological treatment of the selenium-containing wastewater to produce a first liquid including a residual dissolved selenium species, introducing an oxidant into the first liquid to form an oxidant-treated first liquid, introducing a coagulant into the oxidant-treated first liquid to form a second liquid having selenium-containing solids, and removing the selenium-containing solids from the second liquid in a solids-liquid separation operation.


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