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Skip to Search Results- 1Arkell, Nicholas P
- 1Collins, Catherine
- 1Collins, Catherine Elizabeth Victoria
- 1Donner, Mark
- 1Gupta, Sanjay Kumar
- 1Mohamad Shahimin, Mohd Faidz
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Fall 2012
Processing of oil sands ores to extract bitumen generates large volumes of tailings which are deposited into large settling basins, where the solids settle by gravity over 3-4 years to become mature fine tailings (MFT). Methanogenesis has been correlated with increased water recovery from and...
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Anaerobic biodegradation of hydrocarbons in different oil sands tailings ponds: key microbial players and main activation pathway of hydrocarbon biodegradation
DownloadFall 2016
Anaerobic biodegradation of hydrocarbons is an important process in oil sands tailings ponds, which directly affects consolidation of tailings and extent of greenhouse gas emissions from tailings ponds. Since tailings ponds from different operators differ due to extraction process, age of...
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Spring 2014
A series of experiments were conducted to study the fate and distribution of arsenic (As) when it passes through various components of biosphere. Roxarsone, an As containing compound is added to poultry feed for enhanced feed utilization. Mass balance calculations revealed that chickens excreted...
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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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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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Natural and anthropogenic inputs of arsenic and selenium to the environment in the Athabasca Bituminous Sands Region
DownloadSpring 2019
Industrial development of the Athabasca Bituminous Sands (ABS) in northern Alberta, Canada, has raised concerns that emissions of arsenic and selenium to the surrounding landscape and waterbodies have been increasing over time. To test this hypothesis, a comprehensive study of arsenic and...
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Partitioning of inorganic contaminants between fluid fine tailings and cap water under end pit lake scenario: Biological, Chemical and Mineralogical processes
DownloadSpring 2019
Fluid fine tailings (FFT) are generated during bitumen extraction from surface mined oil sands ore (in Alberta, Canada) and comprised of oil sands process-affected water (OSPW), fine particles, unrecovered bitumen and residual diluent. For reclaiming huge volumes of FFT, a viable remediation...