Method for testing and monitoring for producing landfill gas
US4026355A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of withdrawing landfill gas from a landfill without drawing air into the landfill comprising providing a well in the landfill and withdrawing landfill gas from the well at a plurality of different withdrawal rates. The pressure at a selected region within the landfill is detected while the landfill gas is being withdrawn. A relationship is then established between the withdrawal rate and the pressure at the selected regions. This relationship is utilized to establish a maximum withdrawal rate, and this maximum rate occurs at approximately zero gauge pressure. Landfill gas is then withdrawn from the well at no more than about the maximum withdrawal rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.