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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.:

US 12202756 B1

PDFFull Text
Date of Patent:
Jan. 21, 2025

Filed:

Dec. 04, 2023

Method and system for controlling hydrophobic conditions and fouling in water intensive processes

Applicant:

Kemira Oyj, Helsinki, FI;

Inventors:

Mehrdad Hesampour, Espoo, FI;

Roderick Abinet, Bad Soden, DE;

Marjatta Piironen, Oulu, FI;

Eija Korte, Espoo, FI;

Iiris Joensuu, Espoo, FI;

Assignee:

KEMIRA OYJ, Helsinki, FI;

Attorney:

Espatent Oy

Primary Examiner:

Bradley R Spies

Int. Cl.
CPC ...
B01D 65/08 (2006.01); B01D 65/02 (2006.01); C02F 1/24 (2023.01); C02F 1/28 (2023.01); C02F 1/44 (2023.01); C02F 1/52 (2023.01); C02F 9/00 (2023.01); C02F 103/02 (2006.01); C02F 103/10 (2006.01); C02F 103/28 (2006.01); C02F 103/32 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); B01D 65/02 (2013.01); B01D 65/08 (2013.01); C02F 1/24 (2013.01); C02F 1/281 (2013.01); C02F 1/44 (2013.01); C02F 1/5209 (2013.01); C02F 2103/02 (2013.01); C02F 2103/10 (2013.01); C02F 2103/28 (2013.01); C02F 2103/32 (2013.01); C02F 2103/365 (2013.01); C02F 2209/001 (2013.01); C02F 2209/003 (2013.01); C02F 2209/11 (2013.01);
Abstract

In a water treatment system, a pretreatment chemical is added to water stream in a pretreatment process including a coagulation, flocculation and separation to reduce amount of dissolved and/or particulate matter in the water stream. Hydrophobic conditions in the water stream are monitored upstream or downstream from adding the pretreatment chemicals. Dosing of the pretreatment chemical to the water stream is controlled based on the monitored hydrophobic conditions. Thereby a membrane fouling in subsequent membrane filtration stage can be minimized.

Find Patent Forward Citations

Hesampour, Mehrdad. (2025). Method and system for controlling hydrophobic conditions and fouling in water intensive processes (U.S. Patent No. 12202756). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12202756

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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