MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202637059611 A) filed by Kemira Oyj on May 11, 2026, for Water Treatment.
Inventors include Ekman, Jaakko; Aubeuf-Prieur, Patricia; and Kolari, Marko.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: Provided herein is a disinfection method for water comprising at least one microorganism and phosphorus present as inorganic phosphates and/or as organic phosphorus, the method comprising: (i) treating the water to reduce phosphorus to a concentration of 0.7 mg/1 or less; and (ii) contacting the water treated in (ii) with an amount of percarboxylic acid to provide the disinfection. Also provided herein is a disinfection method for water comprising at least one microorganism and phosphorus present as inorganic phosphates and/or as organic phosphorus, the method comprising contacting the water with an amount of percarboxylic acid to provide the disinfection, wherein the amount of percarboxylic acid is controlled based on the concentration of phosphorus in the water, and optionally also the concentration of total suspended solids in the water. Also provided herein are an apparatus and a system related to the methods, and use of a phosphorus precipitation and/or coagulation agent to reduce the amount of a percarboxylic acid required to disinfect water comprising at least one microorganism.
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