US 12,240,772 B2
Treatment of aqueous composition with metal component
Carlos Borras, Ruskin, FL (US); and Donald A. Luke, Valrico, FL (US)
Assigned to NuQuatic, LLC, St. Paul, MN (US)
Filed by NuQuatic, LLC, St. Paul, MN (US)
Filed on Apr. 5, 2024, as Appl. No. 18/628,119.
Claims priority of provisional application 63/604,373, filed on Nov. 30, 2023.
Claims priority of provisional application 63/457,215, filed on Apr. 5, 2023.
Claims priority of provisional application 63/470,046, filed on May 31, 2023.
Claims priority of provisional application 63/544,328, filed on Oct. 16, 2023.
Prior Publication US 2024/0336501 A1, Oct. 10, 2024
Int. Cl. C02F 1/46 (2023.01); C02F 1/461 (2023.01); C02F 1/463 (2023.01); C02F 101/10 (2006.01); C02F 101/36 (2006.01)
CPC C02F 1/463 (2013.01) [C02F 1/46176 (2013.01); C02F 2101/105 (2013.01); C02F 2101/36 (2013.01); C02F 2303/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of treating feed water, the method comprising:
adding a metal component comprising a metal that is aluminum to the feed water, wherein the feed water comprises a fluoroalkyl compound that is a perfluoroalkyl or polyfluoroalkyl substance (PFAS), perfluoroalkyl substance, a polyfluoroalkyl substance, a perfluoroalkyl acid (PFAA), or a combination thereof, wherein the metal component comprises an ion of the metal, a solid or dissolved compound of the metal, an elemental form of the metal, or a combination thereof, wherein the addition of the metal component to the feed water forms a solid;
removing the solid from the metal component-treated feed water, to form a clarified aqueous composition and to form an aqueous concentrate having a higher concentration of the solid than the clarified aqueous composition, wherein the aqueous concentrate comprises the metal component added to the feed water, and wherein the clarified aqueous composition has a lower concentration of the fluoroalkyl compound as compared to the feed water; and
reusing at least some of the metal component in the aqueous concentrate as 1 wt % to 100 wt % of the metal component that is added to the feed water.