Method for forming an in situ groundwater filter
US7341664B2 · kind B2 · utility
1Cited by
7References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2004 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and system for forming an in situ subsurface filter in a contaminated aquifer and for removing contaminants from groundwater drawn from a contaminated aquifer. The filter is produced in situ by injecting an aqueous solution comprising bacteria-stimulating chemical components through a well to bioactively generate a subsurface mineral filtering zone surrounding the well. As water is subsequently drawn through the well, contaminants are removed from the water as it passes through the filtering zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.