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.:
Date of Patent:
Aug. 12, 2025
Filed:
Dec. 31, 2020
Applicant:
Chemtreat, Inc., Glen Allen, VA (US);
Inventors:
Vladimir Djukanovic, Glen Allen, VA (US);
William Henderson, Glen Allen, VA (US);
Nicholas Seymour, Williamsburg, VA (US);
Robert Jeffers, Glen Allen, VA (US);
Assignee:
CHEMTREAT, INC., Glen Allen, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/70 (2023.01); C02F 1/66 (2023.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 101/20 (2006.01);
U.S. Cl.
CPC ...
C02F 1/705 (2013.01); C02F 1/66 (2013.01); C02F 2101/103 (2013.01); C02F 2101/106 (2013.01); C02F 2101/163 (2013.01); C02F 2101/20 (2013.01); C02F 2303/18 (2013.01);
Abstract
A method of treating water to remove selenium and/or mercury that is dissolved in the water. The method includes adding an acid to the water to reduce the pH, adding a metal reagent to the water that is effective to reduce the selenium and/or mercury to a lower oxidation state, and then removing the reduced selenium and/or mercury from the water.