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:
Apr. 17, 2018
Filed:
May. 03, 2016
Applicant:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Inventors:
Dorothy Neu, Pewaukee, WI (US);
Mark C. Nicholson, Pewaukee, WI (US);
Assignee:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/04 (2006.01); E21B 43/40 (2006.01); C02F 1/20 (2006.01); C02F 1/52 (2006.01); C02F 1/66 (2006.01); C02F 101/10 (2006.01); C02F 101/32 (2006.01);
U.S. Cl.
CPC ...
E21B 43/40 (2013.01); C02F 1/048 (2013.01); C02F 1/20 (2013.01); C02F 1/52 (2013.01); C02F 1/66 (2013.01); C02F 2101/10 (2013.01); C02F 2101/32 (2013.01);
Abstract
The present invention relates to a process for treating evaporator concentrate. The process includes generating or producing a vent stream that includes carbon dioxide and mixing the carbon dioxide with the evaporator blowdown to reduce the pH of the evaporator blowdown. In cases where the evaporator blowdown includes a significant concentration of silica, lowering the pH will precipitate silica from the evaporator blowdown.