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. 25, 2020
Filed:
Aug. 20, 2018
Applicant:
Chemtreat, Inc., Glen Allen, VA (US);
Inventors:
William H Henderson, Glen Allen, VA (US);
John Philip Richardson, Hanover, VA (US);
Vladimir Djukanovic, Glen Allen, VA (US);
Assignee:
CHEMTREAT, INC, Glen Allen, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/42 (2006.01); B01J 41/05 (2017.01); B01J 41/14 (2006.01); B01J 47/02 (2017.01); B01J 49/57 (2017.01); B01J 20/34 (2006.01); B01J 20/32 (2006.01); B01J 49/07 (2017.01); B01J 47/016 (2017.01); B01J 20/02 (2006.01); C02F 103/34 (2006.01); C02F 101/10 (2006.01); C02F 1/28 (2006.01); C02F 1/74 (2006.01);
U.S. Cl.
CPC ...
C02F 1/42 (2013.01); B01J 20/0207 (2013.01); B01J 20/321 (2013.01); B01J 20/3204 (2013.01); B01J 20/3236 (2013.01); B01J 20/3293 (2013.01); B01J 20/3433 (2013.01); B01J 20/3475 (2013.01); B01J 41/05 (2017.01); B01J 41/14 (2013.01); B01J 47/016 (2017.01); B01J 47/02 (2013.01); B01J 49/07 (2017.01); B01J 49/57 (2017.01); C02F 1/288 (2013.01); C02F 1/74 (2013.01); C02F 2001/422 (2013.01); C02F 2001/425 (2013.01); C02F 2101/106 (2013.01); C02F 2103/34 (2013.01); C02F 2303/16 (2013.01);
Abstract
Methods for removing a target selenium entity from fluids by treating the fluid with a rare earth impregnated media containing an immobilized rare earth. The methods including obtaining a contaminated fluid comprising water and dissolved selenate; contacting the feed fluid with a rare earth impregnated media for removal of at least a portion of the selenate from the feed fluid thereby forming a treated fluid comprising less selenium than the feed fluid.