Cited by 203Microbial bioremediation and biosurfactantsAnaerobic Digestion and Biogas ProductionEnvironmental Chemistry and Analysis

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Biodegradation of Short-Chain n -Alkanes in Oil Sands Tailings under Methanogenic Conditions

Siddique, Tariq, Fedorak, Phillip M., Foght, Julia M.·2006·Environmental Science & Technology

Abstract

The biodegradation of a mixture of low molecular weight n-alkanes (C6, C7, C8, and C10) was assessed under methanogenic conditions using mature fine tailings (MFT) produced by the oil sands industry in Alberta, Canada. Microorganisms present in the MFT mineralized the added n-alkane mixture, producing 16.2 (+/- 0.3) or 20.5 (+/- 0.1) mmol of methane in the headspace of microcosms spiked with 0.2% or 0.5% w/v n-alkanes, respectively, during 29 weeks of incubation. The spiked n-alkanes biodegraded in the sequence C10 > C8 > C7 > C6. Degradation of 100% C10, 97% C8, 74% C7, and 44% C6 occurred in a mixture of n-alkanes in the MFT spiked at 0.2% after 25 weeks of incubation. The same pattern of biodegradation was also observed in the MFT spiked with 0.5% n-alkanes. Stoichiometric calculations confirmed the mineralization of the degraded n-alkanes to methane. This study showed that the short-chain n-alkanes, which comprise a significant portion of the unrecovered naphtha used in bitumen extraction and released into the settling basins, can be biodegraded into methane. These findings may influence decisions regarding extraction processes and long-term management of MFT, and they suggest that intrinsic, methanogenic metabolism of these n-alkanes may occur in other anoxic environments.

Overview

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Crossref · 10.1021/es060993m

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31 of 31 references verified0 citation errors · 0 not checkable

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Citations

Cites

Show all 31 references

Research works printed but not linked: 8

  1. Rahman K. S. M., 2003, Bioresour. Technol., 90, 168
  2. So C. M., 2001, Environ. Toxicol. Chem., 20, 478
  3. MacKinnon M, 1989, AOSTRA J. Res., 5, 133
  4. Holowenko, F. M. Methanogenesis and fine tailings wastes from oil sands extraction: A microcosm-based laboratory study. M.Sc. Thesis, University of Alberta, 2000.
  5. Penner, T. J. Molecular analysis of microbial populations in oil sands tailings. M.Sc. Thesis, University of Alberta, 2005.
  6. Kim I. S., 2002, Biotechnol. Bioeng., 80, 659
  7. Wenger L. M., 2001, SPE Reservoir Eval. Eng., 5, 383
  8. Weiner J. M., 1998, Appl. Environ. Microbiol., 64, 1939

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Metadata

Authors
Siddique, T., Fedorak, P. M., & Foght, J. M.
Affiliations
University of Alberta (CA)
Corresponding author
Foght, Julia M.
Venue
Environmental Science & Technology
Published
2006-08-03
Volume
40
Issue
17
Pages
5459-5464
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2060907007
Cited by
197
References
31
Citations by year
2026: 7 · 2025: 11 · 2024: 9 · 2023: 8 · 2022: 1 · 2021: 15 · 2020: 11 · 2019: 12 · 2018: 11 · 2017: 7 · 2016: 21 · 2015: 14 · 2014: 21 · 2013: 9 · 2012: 9
FWCI
3.68
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Canadian Natural Resources Limited
  • Canadian Association of Petroleum Producers
Topics
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
n-alkane degradation, short-chain alkanes, mature fine tailings, oil sands, methane production, naphtha, bitumen extraction, anoxia, microcosm incubation, stoichiometric analysis, tailings management
MeSH terms
Alkanes, Methane, Molecular Weight, Silicon Dioxide, Soil Microbiology, Soil Pollutants

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