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:
Jul. 23, 2024
Filed:
Dec. 20, 2019
Kemira Oyj, Helsinki, FI;
Iiris Joensuu, Espoo, FI;
Marjatta Piironen, Espoo, FI;
Andy Bergeron, Atlanta, GA (US);
Travis Bjerketvedt, Atlanta, GA (US);
KEMIRA OYJ, Helsinki, FI;
Abstract
A sample of an aqueous stream is conducted to an optical measurement device. A hydrophobic dye is added. The sample is fractionated into fractions according to particle size or mass. Fluorescence intensity values and light scattering intensity values for the fractions are measured. Fluorescence intensity values of the fractions are added together thus obtaining a sum of the fluorescence intensity values. Light scattering intensity values of the fractions are added together, thus obtaining a sum of the light scattering intensity values. A hydro-phobicity density of the particles in the sample, is calculated by dividing the sum of the fluorescence intensity values with the sum of the light scattering intensity values. A concentration of hydrophobic contaminants in the aqueous stream is monitored and controlled based on the calculated hydrophobicity density of the particles in the sample.