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:
Sep. 30, 2025

Filed:

Aug. 13, 2019
Applicant:

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

Inventor:

Glen P. Sundstrom, Rockford, IL (US);

Assignee:

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

Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2023.01); C02F 1/20 (2023.01); C02F 1/42 (2023.01); C02F 1/44 (2023.01); C02F 1/72 (2023.01); G01N 31/10 (2006.01); G01N 33/18 (2006.01); C02F 101/10 (2006.01); C02F 103/04 (2006.01);
U.S. Cl.
CPC ...
G01N 31/10 (2013.01); C02F 1/008 (2013.01); C02F 1/20 (2013.01); C02F 1/42 (2013.01); C02F 1/448 (2013.01); C02F 1/722 (2013.01); G01N 33/18 (2013.01); C02F 2101/10 (2013.01); C02F 2103/04 (2013.01); C02F 2209/22 (2013.01);
Abstract

A method of determining composition of an aqueous solution is disclosed. The method includes obtaining the aqueous solution, removing oxygen from the aqueous solution, determining concentration of dissolved oxygen, removing hydrogen peroxide from the aqueous solution, and determining concentration of dissolved oxygen. The method includes calculating the difference between the concentrations of dissolved oxygen to determine concentration of hydrogen peroxide. A system for determining composition of an aqueous solution is also disclosed. The system includes a feed line connectable to a source of the aqueous solution, an oxygen removal unit, a hydrogen peroxide removal unit, and dissolved oxygen analyzers.


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