title: Measurement and modelling of adsorption equilibrium, adsorption kinetics and breakthrough curve of toluene at very low concentrations on to activated carbon.
abstract: Indoor air pollution, characterized by many pollutants at very low concentrations, is nowadays known as a worrying problem for human health. Among physical treatments, adsorption is a widely used process, since porous materials offer high capacity for volatile organic chemicals. However, there are few studies in the literature that deal with adsorption as an indoor air pollution treatment. The aim of this study was to investigate the adsorption of toluene on to activated carbon at characteristic indoor air concentrations. Firstly, global kinetic parameters were determined by fitting Thomas's model to experimental data obtained with batch experiments. Then, these kinetic parameters led to the determination of Henry's coefficient, which was checked with experimental data of the adsorption isotherm. Secondly, we simulated a breakthrough curve made at an inlet concentration 10 times higher than the indoor air level. Even if the kinetic parameters in this experiment are different from those in batch experiments, it can be emphasized that the Henry coefficient stays the same.
authors: Laboratoire de Thermique, Energétique et Procédés, Université de Pau et des Pays de l'Adour, Quartier Bastillac, 65000 Tarbes, France. anne.reguer@univ-pau.fr
authors: Anne
authors: A
authors: Réguer
authors: Sabine
authors: S
authors: Sochard
authors: Cécile
authors: C
authors: Hort
authors: Vincent
authors: V
authors: Platel
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry* / Q000302:isolation & purification*; D003198:Computer Simulation; D007700:Kinetics; D008956:Models, Chemical; D014050:Toluene / Q000737:chemistry* / Q000302:isolation & purification*; D014462:Ultrafiltration / Q000379:methods*
chemical_list: D000393:Air Pollutants; D014050:Toluene