Efficiency of Physical Equilibrium and Non-Equilibrium Models for Simulating Contaminant Transport in Laboratory-Scale

Abstract

In order to better management of contaminant in porous media, it is essential to recognize their transport behavior using appropriate models. In this research, convection-dispersion equation (CDE) and mobile-immobile (MIM), as physical equilibrium and non-equilibrium models, respectively, were used to simulate the bromide transport (as a conservative contaminant) through undisturbed and saturated clay loam and sandy loam soil columns (diameter of 10 and height of 40 cm). To simulate the transport, CXTFIT2.1 software, in which the CDE and the MIM models are included, was used. The values of mass transfer coefficient (ω