Electrobioremediation of oil spills

Daghio, Matteo, Aulenta, Federico, Vaiopoulou, Eleni, Franzetti, Andrea, Arends, Jan B.A., Sherry, Angela, Suárez-Suárez, Ana, Head, Ian M., Bestetti, Giuseppina and Rabaey, Korneel (2017) Electrobioremediation of oil spills. Water Research, 114. pp. 351-370. ISSN 0043-1354

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Official URL: https://doi.org/10.1016/j.watres.2017.02.030

Abstract

Annually, thousands of oil spills occur across the globe. As a result, petroleum substances and petrochemical compounds are widespread contaminants causing concern due to their toxicity and recalcitrance. Many remediation strategies have been developed using both physicochemical and biological approaches. Biological strategies are most benign, aiming to enhance microbial metabolic activities by supplying limiting inorganic nutrients, electron acceptors or donors, thus stimulating oxidation or reduction of contaminants. A key issue is controlling the supply of electron donors/acceptors. Bioelectrochemical systems (BES) have emerged, in which an electrical current serves as either electron donor or acceptor for oil spill bioremediation. BES are highly controllable and can possibly also serve as biosensors for real time monitoring of the degradation process. Despite being promising, multiple aspects need to be considered to make BES suitable for field applications including system design, electrode materials, operational parameters, mode of action and radius of influence. The microbiological processes, involved in bioelectrochemical contaminant degradation, are currently not fully understood, particularly in relation to electron transfer mechanisms. Especially in sulfate rich environments, the sulfur cycle appears pivotal during hydrocarbon oxidation. This review provides a comprehensive analysis of the research on bioelectrochemical remediation of oil spills and of the key parameters involved in the process.

Item Type: Article
Uncontrolled Keywords: Bioelectrochemical systems, Bioremediation, Chlorinated solvents, Petroleum hydrocarbons, Sulfate reducing bacteria
Subjects: C700 Molecular Biology, Biophysics and Biochemistry
F900 Others in Physical Sciences
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: John Coen
Date Deposited: 24 Feb 2020 10:27
Last Modified: 24 Feb 2020 10:30
URI: http://nrl.northumbria.ac.uk/id/eprint/42180

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