Electrobioremediation of oil spills

WATER RESEARCH

卷:114

Review

Daghio, Matteo¹  Aulenta, Federico²  Vaiopoulou, Eleni³  Franzetti, Andrea¹  Arends, Jan B. A.³  Sherry, Angela⁴  Suarez-Suarez, Ana⁴  Head, Ian M.⁴  Bestetti, Giuseppina¹  Rabaey, Korneel³ 

[1] Univ Milano Bicocca, Dept Earth & Environm Sci, Piazza Sci 1, I-20126 Milan, Italy

[2] CNR, IRSA, Water Res Inst, Via Solaria Km 29 300, I-00015 Monterotondo, RM, Italy

[3] Univ Ghent, CMET, Coupure Links 653, B-9000 Ghent, Belgium

[4] Newcastle Univ, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

关键词: Petroleum hydrocarbons;    Chlorinated solvents;    Bioremediation;    Bioelectrochemical systems;    Sulfate reducing bacteria;   

DOI  :  10.1016/j.watres.2017.02.030

来源: Elsevier

【 摘 要 】

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. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free