MATHEMATICAL MODEL OF DEGRADING SOLUTE TRANSPORT IN A TWO-ZONE POROUS MEDIUM

In the paper a mathematical model of the degrading solute transport in a porous medium, consisting of active and passive zones, taking into account the multistage adsorption kinetics is compiled.Based on this model, the solute transport problem was formulated and numerically solved using finite difference method.The effect of changes in the kinetics of adsorption on transport characteristics was analyzed.It is shown that in profiles of concentration two zones are formed: one is before "charging" and the other is after.In these zones, transport and adsorption characteristics have different rates of change.

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