Simulation modelling of pollutant transport from leachate in Shiraz landfill |
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| Authors: | S. A. Mirbagheri S. A. Hashemi Monfared H. R. Kazemi |
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| Affiliation: | (1) Department of Civil Engineering, K. N. Toosi University of Technology, Tehran, Iran;(2) Department of Environmental Engineering, K. N. Toosi University of Technology, No. 1346, Valiasr St., Mirdamad Intersection, Tehran, 1996715433, Iran;(3) Department of Hydraulic Structures, Shiraz University, Shiraz, Iran; |
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| Abstract: | A one-dimensional mathematical model based on convection–dispersion equation in unsaturated porous media is presented to compute inorganic total solid concentration in the soil column under the Shiraz landfill. In addition, a dynamic mathematical model is formulated to simulate concentrations of ions such as Ca2+ , Mg2+, Fe2+, K+, Na+, Cl−, SO4 2− and HCO3 − as well as PH and EC in soil profile under the Shiraz landfill. Leachw model was applied to simulate water flow, water content and hydraulic conductivity in soil depth. The model was calibrated and verified by using different sets of data collected from several segments of soil depth in the study area. The numerical solution obtained using finite element method. The simulated values for the parameters were compared with measured values as well as analytical solution. The simulated results are in good agreement with measured values. This model could be applied to field scale problems for the landfill management. |
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