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:
Oct. 26, 2021
Filed:
Nov. 20, 2019
Applicant:
Baker Hughes, Houston, TX (US);
Inventors:
Assignee:
Baker Hughes Holdings LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/52 (2006.01); C02F 1/56 (2006.01); C02F 101/20 (2006.01); C02F 101/22 (2006.01); C02F 101/32 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
C02F 1/56 (2013.01); C02F 1/5272 (2013.01); C02F 2101/203 (2013.01); C02F 2101/22 (2013.01); C02F 2101/32 (2013.01); C02F 2103/365 (2013.01);
Abstract
A chemically modified polysaccharide additive may be introduced to a wastewater stream in an effective amount to remove oil-coated particulates and/or heavy metal contaminants from the wastewater stream. The chemically modified polysaccharide includes at least one sulfur-containing moiety and/or nitrogen-containing moiety and the contaminants may be removed by using this chemically modified polysaccharide to capture the contaminants and separating out the captured contaminants.