System for alleviating DNAPL contamination in groundwater
US6274048A · kind A · utility
7Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C1/002
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Lenses of DNAPL suspended on clay strata in a sandy aquifer are treated with potassium permanganate. The solution is injected out into the aquifer from a port, and forms a horizontal disc of treatment liquid. The (heavy) liquid then gradually percolates down onto the DNAPL lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.