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TitlePower generation and oil sands process-affected water treatment in microbial fuel cells
Publication TypeJournal Article
Year of Publication2014
AuthorsChoi, J., & Liu Y.
Pagination6 pages
Date Published10/2014
PublisherBioresource Technology
Publication Languageeng
Keywordslaboratory, microbiology, tailings, tailings water, UofA

Oil sands process-affected water (OSPW), a product of bitumen isolation in the oil sands industry, is a source of pollution if not properly treated. In present study, OSPW treatment and voltage generation were examined in a single chamber air–cathode microbial fuel cell (MFC) under the effect of inoculated carbon source and temperature. OSPW treatment with an anaerobic sludge-inoculated MFC (AS-MFC) generated 0.55 ± 0.025 V, whereas an MFC inoculated with mature-fine tailings (MFT-MFC) generated 0.41 ± 0.01 V. An additional carbon source (acetate) significantly improved generated voltage. The voltage detected increased to 20–23% in MFCs when the condition was switched from ambient to mesophilic. The mesophilic condition increased OSPW treatment efficiency in terms of lowering the chemical oxygen demand and acid-extractable organics. Pyrosequencing analysis of microbial consortia revealed that Proteobacteria were the most abundant in MFCs and microbial communities in the AS-MFC were more diverse than those in the MFT-MFC.

Locational Keywords

Athabasca Oil Sands Region (AOSR)

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