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. 13, 2019
Filed:
Dec. 04, 2015
Applicant:
Fremont Industries, Inc., Shakopee, MN (US);
Inventors:
Kyle Hunter Hanson, Shakopee, MN (US);
Michael Todd Oldsberg, Chaska, MN (US);
Assignee:
Fremont Industries, Inc., Shakopee, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/24 (2006.01); C02F 9/00 (2006.01); C02F 9/02 (2006.01); C02F 1/54 (2006.01); C02F 1/00 (2006.01); C02F 1/52 (2006.01); C02F 1/28 (2006.01); C02F 101/32 (2006.01); C02F 103/22 (2006.01); C02F 1/66 (2006.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); C02F 1/24 (2013.01); C02F 1/547 (2013.01); C02F 1/004 (2013.01); C02F 1/28 (2013.01); C02F 1/52 (2013.01); C02F 1/66 (2013.01); C02F 2101/32 (2013.01); C02F 2101/325 (2013.01); C02F 2103/22 (2013.01); C02F 2303/18 (2013.01); C02F 2305/04 (2013.01);
Abstract
A method is provided for recovering fractions from an animal rendering process wastewater stream, wherein the fractions include one or more of fat, oil, grease, and protein derived from an animal source. To recover the fractions, the wastewater stream is processed to separate insoluble or immiscible contaminants as collected skimmings, and treating the collected skimmings with an effective amount of a nonionic demulsifying surfactant.