Arrangement for removing impurities from ground water
US5403476A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | May 28, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An arrangement for removing impurities from ground water and surrounding ground region has a wall shaft driven to a contaminated region and provided with at least locally permeable well shaft, a separating wall subdividing the well shaft into two well shaft regions which are sealed from one another, a device for removing impurities arranged in the well shaft so that ground water passes through the device, a tube provided with a feed pump and extending through the separating wall, and an opening provided in one of the well shaft regions to communicate the one well shaft region with the tube, wherein the tube has a tube portion extending through the opening and accommodating an additional feed pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.