Numerical approach to the dispersion of a pollutant discharge in a water table

In the present study, simulations were carried out to determine the infiltration of a pollutant landfill in a homogeneous and isotropic slick. The system of basic equations, which govern the principle of conservation of the momentum coupled with Darcy's law, was developed to resolve the displacement of the pollutant in the water table studied as a function of time.The fields and profiles of the velocity and concentration were presented, the influence of the porosity and the permeability of the medium was taken into account to obtain the rate (%) of the water pollution concentration of the water table and their infiltration with respect to depth. The simulation results obtained show that for a porosity of 20% at the same time with infiltration rates of 1x10^-5, 2x10^-5 and 3x10^-5 successively the concentration of the pollution compared to a depth of 3 (m) is equal to the following values: 20%, 45%, and 70%.