Publications de Yuheng Wang | EPFL Graph Search

Effect 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 ...

2019

Microbially Mediated Release of As from Mekong Delta Peat Sediments

Rizlan Bernier-Latmani, Manon Frutschi, Karen Elda Viacava Romo, Yuheng Wang, Luca Loreggian, Maria Pilar Asta Andres

Peat layers within alluvial sediments are considered effective arsenic (As) sinks under reducing conditions due to the binding of As(III) to thiol groups in natural organic matter (NOM) and the formation of As-bearing sulfide phases. However, their possibl ...

2019

Arsenic speciation in Mekong Delta sediments depends on their depositional environment

Rizlan Bernier-Latmani, Barbora Bártová, Manon Frutschi, Elena Suvorova Buffat, Yuheng Wang, Laurent Louis José Charlet, Maria Pilar Asta Andres

2018

Products of in situ corrosion of depleted uranium ammunition in Bosnia and Herzegovina soils

Rizlan Bernier-Latmani, Barbora Bártová, Yuheng Wang, Konstantin von Gunten

Hundreds of tons of depleted uranium (DU) ammunition were used in previous armed conflicts in Iraq, Bosnia and Herzegovina, and Serbia/Kosovo. The majority (>90%) of DU penetrators miss their target and, if left in the environment, corrode in these postcon ...

Amer Chemical Soc2016

Uranium Isotopes Fingerprint Biotic Reduction

Rizlan Bernier-Latmani, Yuheng Wang, Malgorzata Alicja Stylo

Knowledge of paleo-redox conditions in the Earth's history provides a window into events that shaped the evolution of life on our planet. The role of microbial activity in paleo-redox processes remains unexplored due to the inability to discriminate biotic ...

Natl Acad Sciences2015

Influence of redox regime and time on the in situ bioremediation of chromium in natural sediments

Rizlan Bernier-Latmani, Daniel Scott Alessi, Yuheng Wang, Justine Marie Gay des Combes, Leia Soraya Véronique Falquet

Amer Chemical Soc2014

Mobile uranium(IV)-bearing colloids in a mining-impacted wetland

Rizlan Bernier-Latmani, Manon Frutschi, Elena Suvorova Buffat, Yuheng Wang

Tetravalent uranium is commonly assumed to form insoluble species, resulting in the immobilization of uranium under reducing conditions. Here we present the first report of mobile U(IV)-bearing colloids in the environment, bringing into question this commo ...

Nature Research2013

Distinctive Arsenic(V) Trapping Modes by Magnetite Nanoparticles Induced by Different Sorption Processes

Yuheng Wang

Arsenic sorption onto iron oxide spinels such as magnetite may contribute to arsenic immobilization at redox fronts in soils, sediments, and aquifers, as well as in putative remediation and water treatment technologies. We have investigated As(V) speciatio ...

2011