Publication
Use of silicate minerals for long-term pH control during reductive dechlorination of high tetrachloroethene concentrations in continuous flow-through columns
Related publications (32)
Effect of alkali, aluminium and equilibration time on calcium-silicate-hydrates
Calcium silicate hydrate (C-S-H) is the main hydration product in Portland and blended cements, and greatly affects durability and mechanical properties of the hydrated cement. In the presence of Al-rich supplementary cementitious materials (SCMs), C-(A-)S ...
EPFL2022Role of Iron Sulfide Phases in the Stability of Noncrystalline Tetravalent Uranium in Sediments
Rizlan Bernier-Latmani, Luca Loreggian
Uranium (U) in situ bioremediation has been investigated as a cost-effective strategy to tackle U contamination in the subsurface. While uraninite was believed to be the only product of bioreduction, numerous studies have revealed that noncrystalline U(IV) ...
AMER CHEMICAL SOC2020Effect of Aging on the Stability of Microbially Reduced Uranium in Natural Sediment
Rizlan Bernier-Latmani, Barbora Bártová, Yuheng Wang, Luca Loreggian, Sophie Louise Bretagne, Agnès Novotny
Reductive immobilization of uranium has been explored as a remediation strategy for the U-contaminated subsurface. Via the in situ biostimulation of microbial processes, hexavalent U is reduced to less soluble tetravalent species, which are immobilized wit ...
2019Contaminant loading and competitive access of Pb, Zn and Mn(III) to vacancy sites in biogenic MnO2
Louise Helene Soegaard Jensen, Jasquelin Peña
The scavenging properties of MnO2 are largely attributed to sorption on layer vacancy sites. However, co-occurrence of Mn(II, III) with MnO2 can change mineral reactivity by modifying its Mn(III) content or number of free vacancy sites. These processes are ...
2018Control of groundwater pH during bioremediation: Improvement and validation of a geochemical model to assess the buffering potential of ground silicate minerals
David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix
Accurate control of groundwater pH is of critical importance for in situ biological treatment of chlorinated solvents. The use of ground silicate minerals mixed with groundwater is an appealing buffering strategy as silicate minerals may act as long-term s ...
Elsevier2014Use of silicate minerals for pH control during reductive dechlorination of chloroethenes in batch cultures of different microbial consortia
David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix
In chloroethene-contaminated sites undergoing in situ bioremediation, groundwater acidification is a frequent problem in the source zone, and buffering strategies have to be implemented to maintain the pH in the neutral range. An alternative to conventiona ...
American Society for Microbiology2014Using Silicate Mineral Particles for pH Control during in situ Bioremediation of Chlorinated Ethene Source Zones
Soil and groundwater pollution by chlorinated solvents such as tricholorethene (TCE) and tetrachloroethene (PCE) is a frequent problem in the industrialized world. Chlorinated solvents, characterized by a low solubility and a density greater than water, fo ...
EPFL2013An experimental model approach of biologically-assisted silicate dissolution with olivine and Escherichia coli - Impact on chemical weathering of mafic rocks and atmospheric CO2 drawdown
Chemical weathering of Mg, Ca-silicates and alumino-silicates contributes significantly to the drawdown of atmospheric CO2 over long time scales. The present work focuses on how this mode of weathering may change in the presence of free-living bacteria in ...
Pergamon-Elsevier Science Ltd2013Shock Events in the Solar System: The Message from Minerals in Terrestrial Planets and Asteroids
Impacts are central to the origin and evolution of planets of the Solar System. The shapes of craters, which can reach up to 1,000 km in diameter on the Moon, provide critical information on the large-scale dynamics of the impact and related shock. Mineral ...
Annual Reviews2013A systematic mapping procedure based on the Modified Gaussian Model to characterize magmatic units from olivine/pyroxenes mixtures: Application to the Syrtis Major volcanic shield on Mars
Harold Gabriel Eugène Justin Clenet
Clenet et al. (2011) have developed an adapted version of the Modified Gaussian Model (MGM). The improvements allow the characterization of spectra of olivine-pyroxene(s) mixtures, addressing both modal composition and individual minerals chemical composit ...
Amer Geophysical Union2013