Research Article
Aug 1975
Control of Gas Flow from Sanitary Landfills
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VIEW THE REPLYPublication: Journal of the Environmental Engineering Division
Volume 101, Issue 4
Abstract
Organic refuse materials deposited in a sanitary landfill undergo a process of decomposition that generates various gases, e.g., methane, carbon dioxide, hydrogen sulfide, etc., as well as other liquid and solid by-products. The gases of decomposition can flow out into adjoining soil formations and through the landfill cover. Methane, a major component of these gases, can form an explosive mixture with the air at volumetric concentrations of 5%–15%, and can pose serious fire and explosion hazards to buildings constructed on or near landfills. A gas control system based on forced ventilation of gases from the soil pore space is examined in this paper. Analytical solutions are presented for the flow problem and results of these solutions are compared with the observed field data. Solutions presented here can be used for determination of optimal spacing of ventilation wells based on measured flow rates and pressures in a single test well.
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Published In
Journal of the Environmental Engineering Division
Volume 101 • Issue 4 • August 1975
Pages: 555 - 566
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Aug 1975
Published online: Feb 11, 2021
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Authors
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Houshang Esmaili
Research Engr., Brown and Caldwell Consulting Engrs., Walnut Creek, Calif.
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