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Redox Interactions of Organohalide-Respiring Bacteria (OHRB) with Solid-State Electrodes: Principles and Perspectives of Microbial Electrochemical Remediation

  • Federico AulentaEmail author
  • Simona Rossetti
  • Bruna Matturro
  • Valter Tandoi
  • Roberta Verdini
  • Mauro Majone
Chapter

Abstract

Recent studies have revealed that a number of organohalide-respiring bacteria (OHRB) are capable to establish redox interactions with solid-state electrodes by using them as direct or indirect electron donors in their energy metabolism. Although the biochemical, ecological, and evolutionary significance of electron transfer capabilities in OHRB remain largely unknown, they are increasingly being considered for bioremediation applications. In principle, bioelectrochemical remediation systems which use insoluble electrodes to drive the microbial reduction of chlorinated compounds offer numerous advantages compared to conventional approaches, such as the possibility to fine-tune the rate of electron delivery and consumption, avoid injection of chemicals to the subsurface environment and ultimately gain a more direct control over the biodegradation reactions taking place at the electrodes. In spite of that, however, the technology is still in its infancy and further research and extensive field testing is needed to prove its actual potential for site remediation.

Keywords

Methyl Viologen Cathode Potential Redox Mediator Direct Electron Transfer Standard Hydrogen Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of Abbreviations

AQDS

Anthraquinone-2,6-disulfonate

BES

Bioelectrochemical systems

cis-DCE

cis-Dichloroethene

DET

Direct electron transfer

DIET

Direct interspecies electron transfer

EET

Extracellular electron transfer

ETH

Ethene

MV

Methyl viologen

OHRB

Organohalide-respiring bacteria

PCE

Tetrachloroethene

SHE

Standard hydrogen electrode

TCE

Trichloroethene

VC

Vinyl chloride

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Federico Aulenta
    • 1
    Email author
  • Simona Rossetti
    • 1
  • Bruna Matturro
    • 1
  • Valter Tandoi
    • 1
  • Roberta Verdini
    • 2
  • Mauro Majone
    • 2
  1. 1.Water Research Institute (IRSA), National Research Council (CNR)RomeItaly
  2. 2.Department of ChemistrySapienza University of RomeRomeItaly

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