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Permanent link (DOI): https://doi.org/10.7939/R3B97Q

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Degradation of Naphthenic Acids from Oil Sands Process Water and Groundwater Using Chemical Oxidation Open Access

Descriptions

Other title
Subject/Keyword
oil sands process water
chemical oxidation
naphthenic acids
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Lu, Weibing
Supervisor and department
Ulrich, Ania/Sego, Dave (Civil and Environmental Engineering)
Examining committee member and department
Hashisho, Zaher (Civil and Environmental Engineering)
Ulrich, Ania (Civil and Environmental Engineering)
Chen, Lingyun (Agricultural, Food and Nutritional Sciences)
Sego, Dave (Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
environmental engineering
Date accepted
2013-06-19T09:03:23Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Naphthenic acids attribute to the toxicity of oil sands process water. Naphthenic acids quantification by Fourier Transform Infrared Spectroscopy depends significantly on which standard is used and Merichem naphthenic acids are a good standard. Naphthenic acids can be removed from oil sands process water using sodium persulfate as the oxidant in the presence of iron sulfate or zero-valent iron as the activator. Increasing temperature increased reaction rate between naphthenic acids and sodium persulfate. The chemical oxidation process has a significant effect on oil sands process water chemistry, especially, the pH dropped from 8.3 to about 2.4 after chemical oxidation. Naphthenic acids can be degraded from groundwater in the presence of soil using sodium persulfate with 95 % efficiency within 40 days at 22 0C. The chemical oxidation did not significantly decrease the number of total bacteria in the DNA extracted from the soil.
Language
English
DOI
doi:10.7939/R3B97Q
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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