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Skip to Search Results- 1Collins, Catherine
- 1Collins, Catherine Elizabeth Victoria
- 1Feland, Brett C.
- 1Ifill, Roy O.
- 1Li, Carmen
- 1Moran Nava, Daniel A
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Spring 2017
Mature fine tailings (MFT) are one of the major problems of the oil sands industry in Alberta, specifically due to the reclamation of the land filled with them. Stepping away from the most common approach of dewatering processes, this research is based on the manufacture of useful composite...
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Methanogenesis in oil sands tailings: an analysis of the microbial community involved and its effects on tailings densification
DownloadSpring 2010
Densification of tailings slurries to mature fine tailings (MFT) is important in the oil sands industry for tailings inventory reduction, pore water recovery and tailings reclamation. The cause of methane release from the tailings pond of Shell Albian Sands (Albian) and the effects this process...
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Fall 2013
Collins, Catherine Elizabeth Victoria
Surface mining for bitumen extraction results in production of tailings that are deposited into large ponds. Tailings in the ponds support diverse microbial communities capable of metabolizing organic compounds and producing biogenic gases (methane, CH4 and carbon dioxide, CO2). Because of low...
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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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Spring 2012
Tailing ponds in Northern Alberta has covered an area of 170 km2. Directive 074 issued in 2009 set stringent criteria for tailings reclamation. Freeze-thaw dewatering is one of the most promising approaches for dewatering MFT as one cycle of freeze-thaw can release up to 50% pore water. In this...
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Guiding treatment selection for advanced prostate cancer with biogenic silver nanoparticles
DownloadFall 2018
Prostate cancer (PCa) is the second most common cancer in men worldwide. Men with advanced PCa often face poor prognosis and are at high risk for mortality. To improve prognosis in this high risk population, targeting a reliable biological factor or marker that predicts a patient’s response...
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Characterization of mature fine tailings in the context of its response to chemical treatment
DownloadFall 2010
Continuous accumulation of Mature Fine Tailings (MFT) is a major challenge to oil sands industry. To reduce the inventory of MFT through development of novel tailings treatment technologies, it is essential to understand the stabilization mechanism of fine solids in MFT. This project aims at...
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Spring 2010
Poor settling of solids increases land requirement for tailings containment and imposes severe constraints on the water balance. Consequent to these considerations, the alternating current electrocoagulation (AC/EC) technique emerged as a candidate for enhancing the settling behaviour of...
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Spring 2013
Presented herein is a solid-state 71Ga and 69Ga NMR study of several six-coordinate gallium-oxygen compounds: Ga(acac)3, Ga(thd)3, Ga(trop)3, and (NH4)3[Ga(cit)2]·4H2O. Spectra of stationary and magic angle spinning (MAS) samples are reported, and their electric field gradient (EFG) and chemical...