Analytical model for uni-directional flow passive soil vapour extraction system
by Talib Rashid Abbas
International Journal of Environment and Waste Management (IJEWM), Vol. 10, No. 4, 2012

Abstract: An analytical one-dimensional model has been developed to examine the uni-directional barometric pumping in passive Soil Vapour Extraction (SVE) system. The model is applicable to a special case in which a radial flow field is insignificant. The system considered contains two unsaturated zone layers, an upper contaminated low permeability layer and a lower high permeability layer contains a well screen. The numerical simulations results show that an increase in upper layer thickness results in increase in cumulative displacement. It is clear that to extract relatively effective amount of air, upper layer thickness should be at least few tens meters.

Online publication date: Sat, 13-Dec-2014

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