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Permanent link (DOI): https://doi.org/10.7939/R3W94J

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A Novel Flocculant for Enhanced Dewatering of Oil Sands Tailings Open Access

Descriptions

Other title
Subject/Keyword
oil sands
filtration
flocculants
sedimentation
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Chan, Margo Chi Wing
Supervisor and department
Xu, Zhenghe (Chemical and Materials Engineering)
Masliyah, Jacob H. (Chemical and Materials Engineering)
Examining committee member and department
Yu, Tong (Civil and Environmental Engineering)
Xu, Zhenghe (Chemical and Materials Engineering)
Masliyah, Jacob H. (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization

Date accepted
2011-08-29T17:55:14Z
Graduation date
2011-11
Degree
Master of Science
Degree level
Master's
Abstract
A cationic thermal sensitive polymer, poly[N-isopropylacrylamide-co-N-[3-(Dimethylamino)propyl]methacrylamide] (CP) of different molar ratios, known as CP05 and CP10 was synthesized in-house. By doping aluminum hydroxide (Al(OH)3) colloids into CP during the polymerization process, a novel hybrid polymer flocculant, Al-CP05, was synthesized. All flocculants showed a temperature and pH dependent coil-globule transition, and could alter the surface charge of fine kaolinite particles. For comparison, a coagulant and flocculant mixture was prepared by blending CP05 and Al(OH)3, which was called {CP05+Al}. The synthesized flocculants or blends were applied to kaolinite suspensions and laboratory oil sands extraction tailings to evaluate their settling and filtration performances. Al-CP05 was shown to provide the most effective flocculation on both kaolinite suspensions and tailings while its temperature sensitivity was partially lost in filtration of tailings. CP05 and CP10 showed similar flocculation performance on both kaolinite suspensions and tailings which was less effective than {CP05+Al} blends.
Language
English
DOI
doi:10.7939/R3W94J
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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