Arrangement for cleaning contaminated ground water
US5143606A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/901
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An arrangement for cleaning contaminated ground water and a ground region through which it flows, comprises a shaft extending to a region of the ground water to be cleaned and having water permeable shaft walls separated from one another by a separating wall and adapted for aspirating of water from a ground region and reintroducing of the water into the ground region, elements for circulating water and including a water circulating pump and a passage extending through the separating wall and forming a part of a flow path, a shaft insert formed so that the passage is a part of the shaft insert. The shaft insert has a gas chamber through which a gas is supplied under the action of negative pressure. The water circulating pump is formed as a suction pump arranged on the shaft insert in a water aspiration region of the shaft. A water receiving chamber starts underneath the gas chamber and extends above the gas chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.