An upscaled model for bio-enhanced NAPL dissolution in porous media
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 …
biofilms. We start with the pore scale description of mass transfer within and between the …
[HTML][HTML] Addition of Shewanella oneidensis MR-1 to the Dehalococcoides-containing culture enhances the trichloroethene dechlorination
Y Li, LL Wen, HP Zhao, L Zhu - Environment international, 2019 - Elsevier
Dehalococcoides is able to completely dehalogenate tetrachloroethene (PCE) and
trichloroethene (TCE) to ethene (ETH). However, the dechlorination efficiency of …
trichloroethene (TCE) to ethene (ETH). However, the dechlorination efficiency of …
Enhanced retention of chemotactic bacteria in a pore network with residual NAPL contamination
X Wang, LM Lanning, RM Ford - Environmental science & …, 2016 - ACS Publications
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 …
aquifers due, in part, to the heterogeneous structure of the soil. Chemotaxis enhances the …
Transverse chemotactic migration of bacteria from high to low permeability regions in a dual permeability microfluidic device
R Singh, MS Olson - Environmental science & technology, 2012 - ACS Publications
Low permeability regions such as clay lenses are difficult to remediate using conventional
treatment methods. Bacterial chemotaxis (directed migration toward a contaminant source) …
treatment methods. Bacterial chemotaxis (directed migration toward a contaminant source) …
Transverse mixing enhancement due to bacterial random motility in porous microfluidic devices
R Singh, MS Olson - Environmental science & technology, 2011 - ACS Publications
Bacterial swimming in groundwater may create flow disturbances in the surrounding
microenvironment thereby enhancing contaminant mixing. Porous microfluidic devices …
microenvironment thereby enhancing contaminant mixing. Porous microfluidic devices …
Passivation of zero-valent iron by denitrifying bacteria and the impact on trichloroethene reduction in groundwater
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 …
passivation, which significantly decreases its surface reactivity. Both biological and chemical …
Interaction of perchlorate and trichloroethene bioreductions in mixed anaerobic culture
This work evaluated the interaction of perchlorate and trichloroethene (TCE), two common
co-contaminants in groundwater, during bioreduction in serum bottles containing synthetic …
co-contaminants in groundwater, during bioreduction in serum bottles containing synthetic …
Treatment of co-mingled benzene, toluene and TCE in groundwater
This work addressed a hypothetical but practical scenario that includes biological oxidation
and reductive dechlorination in treating groundwater containing co-mingled plume of …
and reductive dechlorination in treating groundwater containing co-mingled plume of …
[PDF][PDF] Chemotaxis to Hydrocarbons 13
RE Parales, JL Ditty - Cellular Ecophysiology of Microbe …, 2018 - researchgate.net
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 …
the environment. Hydrocarbon compounds, which are sources of carbon and energy for …
Inhibition of Geobacter Dechlorinators at Elevated Trichloroethene Concentrations Is Explained by a Reduced Activity Rather than by an Enhanced Cell Decay
Microbial dechlorination of trichloroethene (TCE) is inhibited at elevated TCE
concentrations. A batch experiment and modeling analysis were performed to examine …
concentrations. A batch experiment and modeling analysis were performed to examine …