The activated carbons involved in the SmartStripping® process for the removal of the contaminants present in the circulation air flow in the saturated zone and in the unsaturated zone are gradually subject to saturation of their adsorption capacity. The handling activities (removal and replacement) are carried out with the aim of minimizing the production of waste, reduced to zero thanks to the regeneration and recovery procedures of the exhausted active carbons, through thermal reactivation.