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Skip to Search Results- 8Graduate and Postdoctoral Studies (GPS), Faculty of
- 8Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 2Oil Sands Research and Information Network (OSRIN)
- 1Oil Sands Research and Information Network (OSRIN)/Syncrude Canada Ltd. Reports
- 1Oil Sands Research and Information Network (OSRIN)/OSRIN Technical Reports
- 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)
- 1Siddique, Tariq (Renewable Resources)
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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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Oil Sands Mature Fine Tailings Consolidation Through Microbial Induced Calcite Precipitation
Download2014-12-21
Liang, J., Liu, Y., Deng, L., Guo, Z.
The accumulation of mature fine tailings (MFT) in tailings ponds has been a concern of the oil sands industry and regulators for decades. Previous studies and current practices for fine tailings consolidation focus on the addition of inorganic and organic additives to reduce MFT production and...
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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...