THE MIGRATION OF LIGHT ORGANIC LIGUIDS IN AN UNSATURATED-SATURATED ZONE OF THE SOIL

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Rafa H. Al-Suhaili
Ayad A. Faisal

Abstract

A one-dimensional finite difference model for the simultaneous movement of light nonaqueous phase liquid (LNAPL) and water through unsaturated-saturated zone of the soil in a three fluid phase system with air assumed constant at atmospheric pressure is developed. The flow equations described the motion of light non-aqueous phase liquid and water are cast in terms of the wetting and non-wetting fluid pressure heads respectively. The finite difference equations are solved fully implicitly using Newton-Raphson iteration scheme. The present numerical results are compared  with results of Kaluarachchi and Parker (1989) and there is a good agreement between them. The present model can be used to simulate various transport problems in a good manner. Results proved that the maximum LNAPL saturation occurred below the source of the contaminant during LNAPL infiltration. During redistribution, the LNAPL saturation had a maximum value at the advancing of the LNAPL infiltration front.

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How to Cite
“THE MIGRATION OF LIGHT ORGANIC LIGUIDS IN AN UNSATURATED-SATURATED ZONE OF THE SOIL” (2006) Journal of Engineering, 12(03), pp. 1649–1664. doi:10.31026/j.eng.2006.03.05.
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How to Cite

“THE MIGRATION OF LIGHT ORGANIC LIGUIDS IN AN UNSATURATED-SATURATED ZONE OF THE SOIL” (2006) Journal of Engineering, 12(03), pp. 1649–1664. doi:10.31026/j.eng.2006.03.05.

Publication Dates

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