Enchanced system and method for treatment of soil and groundwater contaminated with PFAS
US11643339B2 · kind B2 · utility
5Cited by
12References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and enhancements for the decontamination of water containing one or more PFAS contaminants includes introducing a foaming agent into the water, and injecting a gas through a diffuser and into the water so as to form a plurality of bubbles in the water, the one or more PFAS contaminants accumulating on the plurality of bubbles. The plurality of bubbles is allowed to rise, forming a foam at the surface of the water. The resulting foam is then collected and transported away from the surface of the water, where it condenses into a liquid and is treated to regulatory standards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.