Massimo Rolle

TL;DR: In this paper, the authors study the topology of flow in three-dimensional nonstationary anisotropic heterogeneous porous media and apply a topological metric, the helicity density, and two complementary kinematic descriptors of mixing, i.e., stretching and folding, to investigate the scales at which plume deformation is more influenced by helical motion than by the effect of small-scale spatial heterogeneity in the hydraulic conductivity field.

TL;DR: It is demonstrated that changes in chemical conditions, such as the concentration of a background electrolyte in the pore water of a saturated porous medium, exert a key control on the macroscopic transport of charged tracers and reactants.

TL;DR: The self-consistent dual isotope modeling approach proved to be most evident when isotope fractionation factors of carbon and chlorine differed significantly and for systems with mass-transfer limitations, where both physical and (bio)chemical transformation processes affect the observed isotopic values.

TL;DR: In this paper, the authors investigate the influence of Coulombic effects on proton transport in the presence of ionic admixtures in saturated porous media under flow-through conditions.

TL;DR: The oxygen mass supplied to the anoxic groundwater following the imbibition event was found to be remarkably higher in the heterogeneous system compared with a similar experiment performed in a homogeneous porous medium.