We develop a Darcy-scale model for multiphase transport in porous media colonized by
biofilms. We start with the pore scale description of mass transfer within and between the …

Dehalococcoides is able to completely dehalogenate tetrachloroethene (PCE) and
trichloroethene (TCE) to ethene (ETH). However, the dechlorination efficiency of …

Nonaqueous-phase liquid (NAPL) contaminants are difficult to eliminate from natural
aquifers due, in part, to the heterogeneous structure of the soil. Chemotaxis enhances the …

Low permeability regions such as clay lenses are difficult to remediate using conventional
treatment methods. Bacterial chemotaxis (directed migration toward a contaminant source) …

Bacterial swimming in groundwater may create flow disturbances in the surrounding
microenvironment thereby enhancing contaminant mixing. Porous microfluidic devices …

Zero-valent iron (ZVI) application in groundwater remediation is limited by its vulnerability to
passivation, which significantly decreases its surface reactivity. Both biological and chemical …

This work evaluated the interaction of perchlorate and trichloroethene (TCE), two common
co-contaminants in groundwater, during bioreduction in serum bottles containing synthetic …

This work addressed a hypothetical but practical scenario that includes biological oxidation
and reductive dechlorination in treating groundwater containing co-mingled plume of …

Chemotaxis is the ability of organisms to move towards or away from chemical gradients in
the environment. Hydrocarbon compounds, which are sources of carbon and energy for …

Microbial dechlorination of trichloroethene (TCE) is inhibited at elevated TCE
concentrations. A batch experiment and modeling analysis were performed to examine …