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Skip to Search Results- 8Oil sands tailings
- 2Filtration
- 2Flocculation
- 1Amylopectin grafted polyacrylamide
- 1Bio-densification
- 1Bitumen
- 1Gupta, Rajender (Chemical and Material Engineering)
- 1Jacob, Zubin (Electrical and Computer Engineering)
- 1Liu, Qi (Chemical and Materials Engineering)
- 1Liu, Qingxia (Chemical and Materials Engineering)
- 1Liu, Yang (Civil and Environmental Engineering)
- 1Masliyah, Jacob (Chemical Engineering)
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Fall 2011
Carbon dioxide (CO2) was shown as a promising alternative for oil sands tailings treatment with economical and environmental benefits. This thesis aims to understand the role of CO2 addition in settling and densification of oil sands tailings. In this study, CO2 was pressurized into two...
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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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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 Roles of Constituent Minerals and Residual Bitumen in the Filtration of Alberta Oil Sands Tailings
DownloadFall 2022
The dewatering of Alberta oil sands tailings is one of the most challenging problems faced by the oil sands industry. Despite significant efforts in the past several decades, the industry still lacks viable technologies that can quickly dewater and reclaim the oil sands tailings and eliminate...
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Total Internal Reflection Fluorescence Microscopy to Study Bitumen and Clay Interaction in Oil Sands Tailings
DownloadFall 2016
Oil sands tailings management remains to be a major challenge for oil industry in Canada. Promoting quick settling of fines in tailings ponds is the key to its treatment. Bitumen lost to tailings during oil sands extraction is also believed to hinder settling and consolidation of clays in...
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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...
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Spring 2016
In this study, a two-step flocculation method by combining anionic and cationic polymeric flocculants on the treatment of oil sands tailings was investigated. Compared to conventional flocculation by using a single anionic or cationic polymer, which has been a widely exploited procedure for...
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Using Surface Geopolymerisation Reactions to Strengthen Athabasca Oil Sands Mature Fine Tailings
DownloadFall 2015
Bitumen extraction from oil sands operation in Fort McMurray, Canada produces an immense quantity of slurry waste that is discharged to tailings ponds. These ponds now stretch over a region which is roughly 1.5 times the area occupied by Vancouver city mainly due to slow consolidation process of...