Toxic organic contaminants may enter the subsurface as slightly soluble and volatile
nonaqueous phase liquids (NAPLs) or as dissolved solutes resulting in contaminant plumes …

The interplay between mixing and reactive processes plays a pivotal role in a range of
biogeochemical processes controlling the transport, transformation and turnover of chemical …

Mixing-driven reactions in porous media are ubiquitous and span natural and engineered
environments, yet predicting where and how quickly reactions occur is immensely …

We develop a general framework for modelling mixing in porous media flows, in which the
scalar mixture is represented as an ensemble of lamellae evolving through stretching …

Mixing processes significantly affect and limit contaminant transport and transformation rates
in the subsurface. The correct quantification of mixing in groundwater systems must account …

Mixing fronts at the interface of opposing flows are compressed at a constant rate. The
resulting exponential stretching of fluid elements leads to enhanced chemical gradients and …

Microorganisms capable of biomineralization can catalyze mineral precipitation by
modifying local physical and chemical conditions. In porous media, such as soil and rock …

Engineered injection and extraction (EIE) is an in situ groundwater remediation strategy that
imposes an engineered spatially and temporally varying velocity field to spread an …

Mixing fronts, where fluids of different chemical compositions mix with each other, are known
to represent hotspots of chemical reaction in hydrological systems. These fronts are typically …

During in situ remediation, a treatment solution is often injected into a contaminated aquifer
to degrade the groundwater contaminant. Since contaminant degradation reactions occur …