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:
Dec. 21, 2021
Filed:
Aug. 13, 2019
Applicant:
Garratt-callahan Company, Burlingame, CA (US);
Inventors:
E. H. Kelle Zeiher, Hixson, TN (US);
Henri Robert Asbell, Burlingame, CA (US);
James E Gamlen, Burlingame, CA (US);
Daron Gareth Evans, Woodside, CA (US);
Assignee:
Garratt-Callahan Company, Burlingame, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/44 (2006.01); B01D 65/02 (2006.01); B01D 63/02 (2006.01); C02F 1/52 (2006.01); C02F 1/00 (2006.01); B01D 61/18 (2006.01);
U.S. Cl.
CPC ...
C02F 1/444 (2013.01); B01D 61/18 (2013.01); B01D 63/02 (2013.01); B01D 65/02 (2013.01); C02F 1/004 (2013.01); C02F 1/5236 (2013.01); B01D 2311/02 (2013.01); B01D 2311/12 (2013.01); B01D 2311/2642 (2013.01); B01D 2311/2649 (2013.01); B01D 2321/02 (2013.01); C02F 2001/007 (2013.01); C02F 2303/16 (2013.01);
Abstract
A method of treating aqueous, preferably concentrated, waste streams with a unique combination of steps in a way that is easily scalable and able to be used with batch or continuous flows. The method comprises at least the following steps: Adding at least one precipitating agent to the waste water to produce precipitated solids; and removing the precipitated solids from the waste water using a forward flushable membrane to remove the precipitate solids.