Sorption controls the physical and biological availability of chemicals in soil. Most organic
molecules undergo primarily weak physisorption interactions and the driving force for …

The use of equilibrium expressions for sorption to natural particles in fate and transport
models is often invalid due to slow kinetics. This paper reviews recent research into the …

Mass transfer between immobile and mobile zones is a consequence of simultaneous
processes. We develop a “multirate” model that allows modeling of small‐scale variation in …

Diffusion in Natural Porous Media: Contaminant Transport, Sorption/Desorption and
Dissolution Kinetics introduces the general principles of diffusion in the subsurface …

Heterogeneity in naturally occurring carbonaceous materials (CMs) causes sorbed
hydrophobic organic compound (HOC) concentrations in soils, sediments, and rocks to …

Sediment organic matter heterogeneity in sediments is shown to impact the sorption
behavior of contaminants. We investigated the sorptive properties as well as the composition …

Several unique features of sorption irreversibility have been investigated in this paper.
Adsorption has been found to be biphasic with about 30− 50% of the adsorbed mass …

The fate of contaminants in streams and rivers is affected by exchange and biogeochemical
transformation in slowly moving or stagnant flow zones that interact with rapid flow in the …

We report sorption isotherms and uptake kinetics for phenanthrene and pyrene with three
organic model sorbents: polyoxymethylene (POM), coke, and activated carbon. We combine …

Most aquifer materials are heterogeneous in terms of grain size distribution and
petrography. To understand sorption kinetics, homogeneous subfractions, either separated …