Device and method for trapping non-aqueous-phase liquids prior to a permeable reactive barrier for the treatment of contaminated groundwater
US9884771B1 · kind B1 · utility
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21Claims
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Key dates
| Filing date | Feb 14, 2013 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Feb 14, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A groundwater treatment system for collecting a non-aqueous-phase liquid (NAPL) in a flow path of contaminated water in a body of water, the contaminated water moving toward a permeable reactive barrier (PRB) including a treatment agent for treating the contaminated groundwater. The groundwater treatment system including a collection layer positioned up-gradient of the PRB and permeable to the NAPL and the contaminated water. The collection layer including a NAPL collecting element to inhibit the NAPL from flowing to the PRB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.