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. 21, 2025
Filed:
Feb. 17, 2020
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Outi Gronfors, Espoo, FI;
Mehrdad Hesampour, Espoo, FI;
Katriina Rajala, Espoo, FI;
Lenita Lindberg, Espoo, FI;
Assignee:
KEMIRA OYJ, Helsinki, FI;
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/52 (2022.12); C02F 1/00 (2022.12); C02F 1/24 (2022.12); C02F 1/56 (2022.12); G01N 15/0205 (2023.12); G01N 33/18 (2005.12); C02F 101/32 (2005.12); C02F 103/00 (2005.12); G01N 15/00 (2005.12);
U.S. Cl.
CPC ...
C02F 1/5209 (2012.12); C02F 1/001 (2012.12); C02F 1/24 (2012.12); C02F 1/5245 (2012.12); C02F 1/56 (2012.12); G01N 15/0211 (2012.12); G01N 33/18 (2012.12); C02F 2001/007 (2012.12); C02F 2101/32 (2012.12); C02F 2103/007 (2012.12); C02F 2209/003 (2012.12); C02F 2209/105 (2012.12); G01N 2015/0053 (2012.12); G01N 2015/0092 (2012.12);
Abstract
The present invention relates to a method of evaluating and optionally selecting a suitable chemistry for removal of microplastics in a liquid matrix, said method comprising using at least one coagulant and/or flocculant and measuring fluorescence intensity and light scattering intensity of any particles in a sample volume of clarified liquid matrix by an optical measurement.