US 12,269,760 B1
Injectable oxidant materials for environmental remediation
Alexis Wells Carpenter, Chapel Hill, NC (US); Danilo Joel Meyer-Arrivillaga, Durham, NC (US); Julia Whitney Darcy, Durham, NC (US); and Wesley Langdon Storm, Durham, NC (US)
Assigned to Triad Growth Partners, LLC, Greensboro, NC (US)
Filed by Triad Growith Partners, LLC, Greensboro, NC (US)
Filed on Apr. 5, 2022, as Appl. No. 17/713,363.
Claims priority of provisional application 63/170,729, filed on Apr. 5, 2021.
Int. Cl. C02F 1/68 (2023.01); B01J 20/26 (2006.01); C02F 1/72 (2023.01); C08F 218/08 (2006.01); C02F 1/00 (2023.01); C02F 101/30 (2006.01); C02F 103/06 (2006.01)
CPC C02F 1/688 (2013.01) [B01J 20/267 (2013.01); C02F 1/722 (2013.01); C08F 218/08 (2013.01); C02F 1/00 (2013.01); C02F 2101/30 (2013.01); C02F 2103/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of treating contaminated groundwater in situ, the method comprising the activities of:
mixing polyvinyl acetate with a permanganate salt to form a mixture; introducing the mixture into the contaminated groundwater to form a cross-linked polyvinyl acetate network in the mixture;
forming in situ, from the mixture and the contaminated groundwater, a controlled-release oxidant composition; and
wherein the permanganate salt and the polyvinyl acetate are selected in amounts so that the controlled-release oxidant composition releases
the permanganate salt into the contaminated groundwater for a period of at least 6 months.