R
René Lefebvre
Researcher at Institut national de la recherche scientifique
Publications - 126
Citations - 3770
René Lefebvre is an academic researcher from Institut national de la recherche scientifique. The author has contributed to research in topics: Aquifer & Groundwater. The author has an hindex of 29, co-authored 126 publications receiving 3332 citations. Previous affiliations of René Lefebvre include Université du Québec & University of Calgary.
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Multivariate statistical analysis of geochemical data as indicative of the hydrogeochemical evolution of groundwater in a sedimentary rock aquifer system
TL;DR: In this article, two multivariate statistical methods, hierarchical cluster analysis (HCA) and principal components analysis (PCA), were applied to a subgroup of the dataset to evaluate their usefulness to classify the groundwater samples, and to identify geochemical processes controlling groundwater geochemistry.
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An overview of Canadian shale gas production and environmental concerns
Christine Rivard,Denis Lavoie,René Lefebvre,Stephan Séjourné,Charles Lamontagne,Mathieu J. Duchesne +5 more
TL;DR: In this paper, the status of shale gas exploration and production in Canada, including discussions on geological contexts of the main shale formations containing natural gas, water use for hydraulic fracturing, the types of hydraulic fracturing and public concerns and on-going research efforts.
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Multiphase transfer processes in waste rock piles producing acid mine drainage 1: Conceptual model and system characterization.
TL;DR: In this article, the authors describe the coupled physical processes taking place in waste rock piles undergoing acid mine drainage (AMD) production, where the oxidation process initiates coupled processes of gas transfer by diffusion and convection as well as heat transfer.
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Geochemical characterization of acid mine drainage from a waste rock pile, Mine Doyon, Québec, Canada.
TL;DR: The results indicate that physical and chemical processes within the pile are strongly coupled and cannot be considered separately when oxidation rates are high and influence gas transport as a result of heat generation.
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Gas production and migration in landfills and geological materials.
TL;DR: The numerical model TOUGH2-LGM (Transport of Unsaturated Groundwater and Heat-Landfill Gas Migration) has been developed to simulate landfill gas production and migration processes within and beyond landfill boundaries.