Arrangement for cleaning contaminated ground water
US5082053A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Sep 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An arrangement for cleaning contaminated ground water and the ground through which it passes with a shaft extending to the region of the ground water to be cleaned has a shaft wall including a plurality of water permeable and water impermeable wall portions with one of the water impermeable wall portions located between water permeable wall portions, a tightly inserted partition located above a ground water level in the one water impermeable wall portion and having an opening, a throughgoing passage extending in the opening and forming a part of a flow path of a ground water and ending above a ground water level in the well shaft, a circulating pump arranged in the well shaft for circulating the ground water along the flow path, and a filter arranged in the well shaft in the flow path of the ground water circulated by the circulating pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.