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Foam-surfactant technology in soil remediation

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Foam-surfactant technology in soil remediation

Eftekhari, Farzad (2000) Foam-surfactant technology in soil remediation. Masters thesis, Concordia University.

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Abstract

Recently, the use of gas-liquid foams as a means of delivering chemicals to the subsurface is being considered as an important to in-situ soil remediation. However research in this area has been limited. Column experiments were conducted to investigate the factors that limit the use of foam as an agent for soil flushing. Pressure build up in the soil is an important factor that was studied for foam with different characteristics. In addition, the capability of this technology for the removal of contaminants (Pentachlorophenol, "PCP") from soil and the principal factors that influence the removal efficiency were investigated. The fate and transport of pentachlorophenol, (aromatic pesticide and is mostly used as a wood preservative) was studied in the presence of foam with different properties formed by using two different types of surfactant. TritonX100 and JBR425 were used as representatives of nonionic and anionic surfactants, respectively. The results obtained from this study on a sandy soil showed that foam can be used as a fluid to enhance soil remediation under low pressures compared to other fluids such as liquid surfactant solutions.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Thesis (Masters)
Authors:Eftekhari, Farzad
Pagination:xi, 98 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.A.Sc.)
Program:Building, Civil and Environmental Engineering
Date:2000
Thesis Supervisor(s):Mulligan, Catherine N
ID Code:1131
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:16
Last Modified:08 Dec 2010 10:18
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