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Skip to Search Results- 1Afacan, Christopher
- 1Amani, Mohammad Javad
- 1Amoako, Kwaku Akrofi
- 1Arora, Nitin
- 1Baron Ruiz, Oscar J
- 1Bazoubandi, Behnaz
- 26Department of Chemical and Materials Engineering
- 9Department of Civil and Environmental Engineering
- 5Department of Mechanical Engineering
- 3Department of Renewable Resources
- 2Department of Earth and Atmospheric Sciences
- 2Department of Resource Economics and Environmental Sociology
- 3Soares, Joao (Chemical and Materials Engineering)
- 3Xu, Zhenghe (Chemical and Materials Engineering)
- 2Liu, Qi (Chemical and Materials Engineering)
- 2Soares, João B. P. (Chemical and Materials Engineering)
- 2Xu, Zhenghe (Chemical Engineering)
- 1Adamowicz, Vic (Resource Economics and Environmental Sociology)
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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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Spring 2017
In this research, flocculation of fractionated asphaltenes was studied using dynamic light scattering (DLS). Three asphaltene fractions were obtained based on its adsorption characteristics onto calcium carbonate. The DLS results showed that the irreversibly-adsorbed asphaltenes (Irr-Ads),...
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Fall 2017
The by-product slurry resulting from the bitumen extraction process from oil sands sources, known as tailings, holds substantial amount of water along with clays and fugitive bitumen. Current polymer-based dewatering technologies are centred on acrylamide-based polymers such as polyacrylamide...
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Study on Adsorption of Inorganic-organic Hybrid Polymers and Flocculation of Oil Sands Tailings
DownloadSpring 2013
Two inorganic-organic hybrid polymers, Al(OH)3-polyacrylamide (Al-PAM) and Fe(OH)3-polyacrylamide (Fe-PAM) were synthesized and used in flocculating model tailings (5 wt% kaolin suspensions) and laboratory extraction tailings. For comparison, a commercial anionic flocculant, partially hydrolyzed...
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Synthesis and Characterization of Amylopectin-grafted Polyacrylamide (AP-g-PAM) Flocculants for Dewatering of Oil Sands Mature Fine Tailings (MFT)
DownloadSpring 2018
Oil sand mining continues increasing in Alberta and bitumen production from surface mining is predicted to reach 257,600 m3/day by 2026 (a 41.3% increase compared to 2016), generating a large amount of tailings that need to be stored in tailing ponds. The challenging part of tailing management is...
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The Behaviour and Interactions of the Silica/Water Interface Studied through Nonlinear Optics
DownloadFall 2020
The chemistry of silica in contact with water is rich and diverse. These two substances are among the most ubiquitous on the surface of the Earth. Yet, despite many investigations into the interactions between silica and water, there is still more to discover. In aqueous solution, the silica...
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Fall 2016
March 11, 2011, 14:46 Japan Standard Time. This was the moment that marked the beginning of what is now known as the “2011 Tōhoku earthquake and tsunami,” a catastrophe that brought about devastation throughout many regions in Japan, most notably in the north eastern region of the main island of...
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Fall 2012
An ecological risk assessment for the Athabasca River was done. We did a review of literature pertaining to ecological risk assessment in the Athabasca River. The focus of the risk assessment was on the ecological impact of low dissolved oxygen (DO), because mainly ice-cover and pulp mill...
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The Role of High Molecular Weight Polyethylene Oxide in Reducing Quartz Gangue Entrainment in Chalcopyrite Flotation by Xanthate Collectors
DownloadFall 2011
Fine particles pose two challenging problems to all mineral processors around the world today. The problems are the inefficient collection of hydrophobic particles (low recovery), and mechanical/hydraulic entrainment of hydrophilic gangue particles (low concentrate grade). Extensive research has...
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Tradeoffs Between Environmental Quality and Economic Returns from Agriculture: A Case Study of the Lower Little Bow Watershed, Alberta
DownloadFall 2016
The aim of this study is to evaluate both the costs and benefits of implementing changes to agricultural practices, with the goal of identifying cost effective means of achieving environmental targets and providing supplementary information to policymakers. A suite of agricultural land use...