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Permanent link (DOI): https://doi.org/10.7939/R3Q93M

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Understanding Al-PAM Assisted Oil Sands Tailings Treatment Open Access

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Other title
Subject/Keyword
Oil sands tailings
Filtration
Flocculation
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Guo,Lina
Supervisor and department
Masliyah, Jacob (Chemical Engineering)
Xu, Zhenghe (Chemical Engineering)
Examining committee member and department
Masliyah, Jacob (Chemical Engineering)
Liu, Yang (Environmental Engineering)
Xu, Zhenghe (Chemical Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical engineering
Date accepted
2012-08-24T13:35:30Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
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 and aluminum content), tailings characteristics (fines content and bitumen content) and temperature on flocculation and filtration of oil sands laboratory extraction tailings. Based on fundamental knowledge established through this study, an appealing solution to fresh oil sands tailings treatment by filtering the sediment of flocculated fresh oil sands extraction tailings was proposed and tested. Al-PAM of higher molecular weight or/and high Al content was identified to be more effective in flocculating fines in oil sands tailings and hence filtration. Removal of bitumen from laboratory extraction tailings did not improve flocculation and filtration of oil sands tailings by Al-PAM. Effective flocculation of ultra-fines particles in fresh tailings was determined to be a critical contributor to outstanding performance of Al-PAM in flocculation and filtration of oil sands laboratory extraction tailings. It was also found that temperature (22 and 45 °C) had little effect on settling and filtration of laboratory oil sands extraction tailings. Filtration of sediments after flocculation of laboratory oil sands extraction tailings was found about 3 times more efficient than filtration of the entire flocculated tailings suspensions.
Language
English
DOI
doi:10.7939/R3Q93M
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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