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Skip to Search Results- 1Brown, Daniel M.
- 1Chan, Judith S.
- 1Collins, Catherine
- 1Haroon, M Hasin
- 1Khan, Muhammad F
- 1Loerke, Rosalynn S.
- 2Liu, Qi (Chemical and Materials Engineering)
- 1Gupta, Rajender (Chemical and Material Engineering)
- 1Liu, Qingxia (Chemical and Materials Engineering)
- 1Perez-Estrada, Leonidas (Civil and Environmental Engineering)
- 1Ravin Narain (Chemical and Materials Engineering)
- 1Reuter, Gerhard (Earth and Atmospheric Sciences)
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Fall 2014
The extraction of bitumen from oil sands in Alberta, Canada, leads to the creation of tailings that are contained in lake-sized ponds under zero discharge policy. Stratification of tailings over time leads to the formation of mature fine tailings (MFT), an oil based emulsion containing residual...
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Flocculation and dewatering of kaolinite suspensions and oil sands mature fine tailings using dual polymers
DownloadSpring 2015
The development of a method to consolidate and dewater Athabasca oil sands mature fine tailings (MFT) is one of the major challenges facing Alberta’s oil sands industry. This thesis presents studies performed on the flocculation and dewatering of kaolinite suspensions (the major clay component...
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Fall 2017
Rapid, efficient and economical water removal from fluid fine tailings represents a major challenge to many industries, including mineral processing, food processing, waste water treatment and oil sands extraction. In the absence of large-scale fine tailings processing facilities, there will be...
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Methane Production and Emission Mitigation in Oil Sands Tailings Concurrent with Hydrocarbon Degradation under Nitrogen Limited Conditions
DownloadFall 2020
Alberta’s oil sands generate large volumes of tailings from bitumen ore processing. These tailings ponds produce biogenic methane, which can be measured across 60-80% of the tailings surface. Based on current surface area data and emissions studies, tailings ponds could account for 8% of Canada’s...
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Molecular Dynamics Study of Clay-Polymer Interactions in the Treatment of Mature Fine Tailings
DownloadFall 2021
In this dissertation, all-atom molecular dynamics (MD) simulations were performed to study the mechanisms of clay-polymer interactions and the effects of solution chemistry in the treatment of mature fine tailings (MFT). The fine solids in MFT were mainly clay particles such as montmorillonite...
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Possible thunderstorm modifications caused by the Athabasca oil sands development and the Canadian Shield
DownloadFall 2017
Thunderstorms are common in boreal forest regions and can cause dangerous hazards such as lightning, forest fires, hail, wind, and flooding. Significant research has been conducted to help predict thunderstorms to mitigate or avoid the hazards and damage. The development of thunderstorms...
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Spring 2017
Dewatering of the oil sands mature fine tailings (MFT) is studied through pressure filtration following treatment by dual polymer flocculants. Polymer pairs consisting of anionic polyacrylamide (A3335) and cationic polyDADMAC (Alcomer 7115), and A3335 and non-ionic polyethylene oxide (PEO) are...
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Study of Bio-densification Process in Oil Sands Tailings: Modeling and Experimental Validation
DownloadFall 2012
Slow densification of mature fine tailings (MFT) is one of the major challenges in reduction of tailings inventory, pore-water recovery and reclamation of tailings for oil sands industry. Bio-densification is a new treatment method in which densification of tailings is accelerated through...
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Spring 2017
This thesis is composed of two parts. The first part deals with the fabrication of antifouling membranes based on polyethersulfone (PES) and cellulose nanocrystals (CNC). PES/CNC nanocomposite membranes were prepared by non-solvent phase-inversion method. The effects of PES/CNC composition on...
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Subsurface Geophysical Characterization of the Crystalline Canadian Shield in Northeastern Alberta: Implications for Geothermal Development
DownloadFall 2013
In northern Alberta, existing heat flow and geothermal gradient studies suggest that using geothermal heat in oil sands processing would require deep drilling of the crystalline Canadian Shield. Using a 2.36 km deep borehole located near Fort McMurray, the goal of this study is to investigate the...