Nonlinear sorption and nonequilibrium solute transport in aggregated porous media: experiments, process identification and modeling

摘要

The combined effects of nonlinear sorption, nonequilibrium mass transfer and the distribution of sorption sites on transport of organic contaminants has bee examined in porous media containing aggregates of clay minerals and organic matter as sorbents. The major goal was to develop general concepts for describing, deterministically, the transport processes of solutes with different adsorption characteristics in such systems. various sets of batch adsorption and miscible displacement experiments were performed covering a wide range of time scales and other experimental conditions.