RESEARCH ARTICLE


A Comparison of Performance of Landfill Gas Collection Wells with Varying Configurations



Chien-Kai Wang, Gopal Achari*
Department of Civil Engineering, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada.


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 156
Abstract HTML Views: 596
PDF Downloads: 728
Total Views/Downloads: 1480
Unique Statistics:

Full-Text HTML Views: 109
Abstract HTML Views: 425
PDF Downloads: 514
Total Views/Downloads: 1048



© 2012 Wang and Achari.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil Engineering, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada; Tel: 403-220-6599; Fax: 403-282-7026; E-mail: gachari@ucalgary.ca


Abstract

An investigation to compare the efficiency of landfill gas collection systems with different well numbers (one, two or four) and configurations (vertical or horizontal) has been conducted. The study has shown that with an increasing number of wells, the gas collection rate and efficiency are enhanced and the gas flux at the surface also becomes more uniform. In addition, the study has also suggested that for wells with the same screen length, a vertical well works better than a horizontal well in terms of gas extraction rate; however, it may result in a less uniform gas flux through the surface.

Keywords: Landfill gas, gas extraction wells, LFG recovery, surface emission, air intrusion.