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Skip to Search Results- 1Le Meil, Gael
- 1Li, Weidong
- 1Murata, Alison P
- 1Naderi Khorshidi, Zeinab
- 1Nazemi Ashani,Mahsa
- 1Ni, Xiao
- 1Choi, Phillip (Chemical and Materials Engineering)
- 1Choi, Phillip Y.K (Chemical and Materials Engineering)
- 1Deng, Lijun (Department of Civil and Environmental Engineering)
- 1Hendry, Michael T. (Civil and Environmental Engineering)
- 1Jacobe Masliyah (Department of Chemical and Materials Engineering)
- 1Naeth, M Anne
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Atomistic Approach towards Sodium Citrate Role on Surface Properties of Silica and Clay Minerals
DownloadFall 2022
The use of sodium citrate as a secondary processing aid in combination with caustic significantly improved bitumen recovery, specifically in poor oil sands ores. The role of sodium citrate on wettability alteration of solid surfaces, benefiting bitumen liberation as well as improving bitumen...
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Centrifuge Modeling and Large Deformation Analyses of Axially Loaded Helical Piles in Cohesive Soils
DownloadSpring 2022
In the past decades, helical piles have gained increasing popularity in civil engineering practice as an option of deep foundations. The design of axial load capacity of these piles relies on an appropriate selection of failure mode. Currently, the axial failure modes of multi-helix piles...
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Characterization of a landslide-prone glaciolacustrine clay from the Thompson River Valley near Ashcroft, British Columbia
DownloadFall 2017
Several large landslides have occurred in the Thompson River Valley near Ashcroft, British Columbia. The movement of these landslides have presented challenges for the operation of the two national railways that traverse this valley. The landslides are multiple retrogressive, translational,...
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Effects of Surface Contamination and Water Chemistry on the Behaviors of Illite, Kaolinite and Montmorillonite in Organic and Aqueous Media
DownloadSpring 2016
Clays, due to their specific surface area and electrical charge density, are among the most active minerals in aquifers, oil and gas reservoirs, and tailings ponds. Clays, in tailings, are a significant ongoing environmental concern in the mining and oil sands production industries and clay...
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Long Term Dynamics And Potential Remediation Of Fine Textured Soils And Ground Water Contaminated With Chlorinated Organic Compounds And Salts
DownloadFall 2019
Contamination of land, water, and air is a widespread concern often associated with anthropogenic activities. Remediation of contaminated sites is necessary to minimize negative impacts on human health and the environment and allow for safe, productive use of land. Although contaminated sites...
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Molecular Dynamics Study of the Interactions between Cations/Carbon Dioxide and Selected Mineral Surfaces
DownloadSpring 2018
Undoubtedly, we need to become increasingly aware of the changes and problems introduced to our environment. Oil sands industrial waste disposal and greenhouse gas emission are the two major by-products of the industrial processes that cause environmental concerns, such as huge tailing ponds and...
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Spring 2010
Molecular dynamics simulation and density functional theory were applied to calculate heats of immersion (ΔHimm) of n-heptane, toluene, pyridine and water on two model sand surfaces and two model clay surfaces. Our results indicated that water showed the highest ΔHimm for the model clay surfaces...
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Spring 2017
Oilsands tailings are a waste product comprising primarily a stable alkaline suspension of clay in water. This waste product of oilsands mining is environmentally hazardous to store and expensive to safely dispose of. This work presents two novel ideas for dealing with the waste. The first is...
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Role of Sodium Hydroxide in Bitumen Extraction: Production of Natural Surfactants and Slime Coating
DownloadSpring 2015
Alkaline environment by addition of NaOH in bitumen extraction process often shows a positive effect on bitumen recovery from Athabasca oil sands by mining-extraction method. NaOH ionizes organic acids in the bitumen to produce surfactants. These species are essential for bitumen liberation....