US 12,091,331 B2
Destruction of PFAS via an oxidation process and apparatus suitable for transportation to contaminated sites
Lindy E. Dejarme, Columbus, OH (US); Kavitha Dasu, Powell, OH (US); Russell R. Sirabian, Columbus, OH (US); Christopher F. Buurma, Gahanna, OH (US); Jeffrey Ellis, Columbus, OH (US); Michael M. Miller, Worthington, OH (US); Dan Garbark, Columbus, OH (US); Nathan Bryant, Columbus, OH (US); John Tallarico, Columbus, OH (US); Joseph Casciano, Columbus, OH (US); Slawomir Winecki, Columbus, OH (US); David Holley, Columbus, OH (US); Joshua James, Columbus, OH (US); Keith Brown, Solon, OH (US); Doug Hendry, Columbus, OH (US); Darwin Argumedo, Columbus, OH (US); Aaron Frank, Dublin, OH (US); and Christopher Gordon Scheitlin, Columbus, OH (US)
Assigned to Revive Environmental Technology, LLC, Columbus, OH (US)
Filed by Revive Environmental Technology, LLC, Columbus, OH (US)
Filed on Nov. 21, 2022, as Appl. No. 17/991,124.
Application 17/991,124 is a continuation of application No. 17/871,907, filed on Jul. 23, 2022, granted, now 11,780,753.
Application 17/871,907 is a continuation of application No. 16/916,085, filed on Jun. 29, 2020, granted, now 11,401,180, issued on Aug. 2, 2022.
Claims priority of provisional application 62/948,765, filed on Dec. 16, 2019.
Claims priority of provisional application 62/868,858, filed on Jun. 28, 2019.
Prior Publication US 2023/0227336 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C02F 1/44 (2023.01); B01J 3/00 (2006.01); B01J 4/00 (2006.01); C02F 1/04 (2023.01); C02F 1/58 (2023.01); C02F 1/72 (2023.01); C02F 101/36 (2006.01)
CPC C02F 1/441 (2013.01) [B01J 3/008 (2013.01); B01J 4/002 (2013.01); C02F 1/04 (2013.01); C02F 1/583 (2013.01); C02F 1/722 (2013.01); C02F 2101/36 (2013.01); C02F 2201/002 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of destroying PFAS in a PFAS-containing mixture, the method comprising:
separating the PFAS-containing mixture into a mineral-enriched fraction and a mineral depleted fraction using a separation procedure;
heating the mineral-enriched fraction to volatize PFAS into a vapor;
recovering PFAS from the vapor; and
reacting the recovered PFAS with an oxidant under supercritical conditions in a supercritical destruction phase; and
wherein prior to the step of reacting the PFAS with an oxidant, super-saturating the PFAS-containing mixture with air and passing the PFAS-containing mixture into a tank and reducing pressure in the tank such that bubbles are generated in the mixture to create a foamed mixture.