Advanced oxidation process for ex-situ groundwater remediation
US11161762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Mar 15, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Methods of treating contaminated groundwater having recalcitrant organic contaminants are disclosed. The methods include pretreating the contaminated groundwater to remove iron, introducing a persulfate to the contaminated groundwater, and exposing the contaminated groundwater to irradiation. The methods may also include extracting the contaminated groundwater from a feed stream. The methods may also include preparing the persulfate with high purity water. Systems for treating contaminated groundwater having recalcitrant organic contaminants are also disclosed. The systems include a pretreatment subsystem, a source of persulfate, and an irradiation source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.