Search
Skip to Search Results- 1Afacan, Christopher
- 1Amoako, Kwaku Akrofi
- 1Arora, Nitin
- 1Badiozamani Tari Nazari, Mohammad Mahdi
- 1Baker, Kathleen E.N.
- 1Bazoubandi, Behnaz
- 31Department of Chemical and Materials Engineering
- 11Department of Civil and Environmental Engineering
- 2Department of Mechanical Engineering
- 1Department of Agricultural, Food, and Nutritional Science
- 1Department of Biological Sciences
- 1Department of Earth and Atmospheric Sciences
- 4Xu, Zhenghe (Chemical and Materials Engineering)
- 3Soares, Joao (Chemical and Materials Engineering)
- 2Beier, Nicholas (Civil and Environmental Engineering)
- 2Liu, Qi (Chemical and Materials Engineering)
- 2Soares, João B. P. (Chemical and Materials Engineering)
- 2Xu, Zhenghe (Chemical Engineering)
-
Fall 2012
Built on the established success of Al-PAM, an in-house synthesized, organic-inorganic hybrid polymer, for flocculation and filtration of fresh oil sands extraction tailings, this research is to understand working mechanism of Al-PAM, focusing on the effect of Al-PAM properties (molecular weight...
-
Toxic effects induced in mammalian immune cells after in vitro exposure to oil sands process-affected water and its fractions
DownloadFall 2019
Oil sands process-affected water (OSPW) is produced by the surface mining industry in Alberta as a byproduct of the Clark hot water process, the currently used extraction method of crude oil from bitumen/tar sands. Under a provincial zero release policy all produced OSPW must be stored on site....
-
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...
-
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...
-
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...
-
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...
-
Spring 2016
Non-aqueous extraction technologies are currently being investigated as an alternative to the conventional water based process for extracting bitumen from oil sands. The reduced dependence on fresh water and land for creation of tailing ponds makes non-aqueous technologies a greener alternative....
-
Fall 2018
The production of a tailings waste stream is ubiquitous to mining and mineral processing operations, especially in Alberta’s oil sands industry. Due to the presence of colloidal clays such as kaolinite, which do not naturally sediment in suspension, water recycling and land reclamation remain...
-
Protecting Worker Safety in Alberta by Enhancing Hazard Identification and Control for Hazards Associated with Tailings Facilities, Dams, and Systems
DownloadSpring 2019
My research was motivated by a fatality that occurred at an oil sands tailings operation on January 19, 2014, when a worker drowned in an underground cavern which formed under a leaking tailings transport system. At the time of the incident, the organization and workers did not know that ground...
-
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),...