Hydrocarbon Exclusion from Ground Water during Freezing
Publication: Journal of Environmental Engineering
Volume 119, Issue 4
Abstract
Bench‐scale studies were conducted using a constant‐head ground‐water flow chamber and natural soil. Initial experiments with chlorides and dye were conducted to test the hydraulic and adsorptive characteristics of the chamber. A constant flow of phenol was then introduced into the chamber and contaminant movement with time was monitored under freezing and nonfreezing conditions. The chamber was located in a controlled‐temperature room, and freezing fronts were induced from the soil surface downward using cooled Freon circulated through freezer pads placed on the surface of the soil. The results conclusively demonstrate that phenol is excluded from the freezing front and pushed downward through the system. Extensive exclusion of the chemical occurs even though the freezing point of phenol (43°C) is significantly higher than water. The information gained through this research is applicable in cold regions outside Alaska and the Arctic where ground water systems may undergo periodic freezing, and may also be of extreme importance in artificial‐freezing scenarios such as those currently being investigated by the Environmental Protection Agency (EPA) as a method of contaminant containment.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 119 • Issue 4 • July 1993
Pages: 715 - 724
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Feb 28, 1992
Published online: Jul 1, 1993
Published in print: Jul 1993
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