The effect of surface-active solutes on water flow and contaminant transport in variably saturated porous media with capillary fringe effects
Organic contaminants that decrease the surface tension of water (surfactants) can have an
effect on unsaturated flow through porous media due to the dependence of capillary
pressure on surface tension. We used an intermediate-scale 2D flow cell (2.44× 1.53× 0.108
m) packed with a fine silica sand to investigate surfactant-induced flow perturbations.
Surfactant solution (7% 1-butanol and dye tracer) was applied at a constant rate at a point
source located on the soil surface above an unconfined synthetic aquifer with ambient …
effect on unsaturated flow through porous media due to the dependence of capillary
pressure on surface tension. We used an intermediate-scale 2D flow cell (2.44× 1.53× 0.108
m) packed with a fine silica sand to investigate surfactant-induced flow perturbations.
Surfactant solution (7% 1-butanol and dye tracer) was applied at a constant rate at a point
source located on the soil surface above an unconfined synthetic aquifer with ambient …
[PDF][PDF] THE EFFECT OF SURFACE-ACTIVE SOLUTES ON WATER FLOW AND CONTAMINANT TRANSPORT IN VARIABLY SATURATED POROUS MEDIA
EJ Henry, JE Smithi - CONTAMINANT INDUCED FLOW EFFECTS … - repository.arizona.edu
Organic contaminants that decrease the surface tension of water (surfactants) can have an
effect on unsaturated flow through porous media due to the dependence of capillary
pressure on surface tension. We used an inteimediate-scale 2D flow cell (2.44 x 1.53 x
0.108 m) packed with a fine silica sand to investigate surfactant-induced flow perturbations.
Surfactant solution (7% 1-butanol and dye tracer) was applied at a constant rate at a point
source located on the soil surface above an unconfined synthetic aquifer with ambient …
effect on unsaturated flow through porous media due to the dependence of capillary
pressure on surface tension. We used an inteimediate-scale 2D flow cell (2.44 x 1.53 x
0.108 m) packed with a fine silica sand to investigate surfactant-induced flow perturbations.
Surfactant solution (7% 1-butanol and dye tracer) was applied at a constant rate at a point
source located on the soil surface above an unconfined synthetic aquifer with ambient …
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