Multiphase media approach – a key to modelling in environmental mechanics. Description of solute transport phenomena in porous media

A description of solute migration through porous media is presented. It is assumed that transport of contaminants may be considered as an effect of the two processes: advection and dispersion. The advective transport is attributed to an average motion of the solution through the porous skeleton. The dispersive transport results from molecular diffusion and mechanical mixing. In the paper the Fickian as well as Non-Fickian dispersion is considered.