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Minimizing losses in bio-electrochemical systems: the road to applications

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Abstract
Bio-electrochemical systems (BESs) enable microbial catalysis of electrochemical reactions. Plain electrical power production combined with wastewater treatment by microbial fuel cells (MFCs) has been the primary application purpose for BESs. However, large-scale power production and a high chemical oxygen demand conversion rates must be achieved at a benchmark cost to make MFCs economical competitive in this context. Recently, a number of valuable oxidation or reduction reactions demonstrating the versatility of BESs have been described. Indeed, BESs can produce hydrogen, bring about denitrification, or reductive dehalogenation. Moreover, BESs also appear to be promising in the field of online biosensors. To effectively apply BESs in practice, both biological and electrochemical losses need to be further minimized. At present, the costs of reactor materials have to be decreased, and the volumetric biocatalyst activity in the systems has to be increased substantially. Furthermore, both the ohmic cell resistance and the pH gradients need to be minimized. In this review, these losses and constraints are discussed from an electrochemical viewpoint. Finally, an overview of potential applications and innovative research lines is given for BESs.
Keywords
bioenergy, biofuel cell, biocatalyzed electrolysis, overpotentials, biocatalysts, ohmic resistance, MICROBIAL FUEL-CELLS, CATHODIC OXYGEN REDUCTION, EXTRACELLULAR ELECTRON-TRANSFER, ION-EXCHANGE MEMBRANES, WASTE-WATER TREATMENT, ELECTRICITY-GENERATION, BIOCATALYZED ELECTROLYSIS, SHEWANELLA-ONEIDENSIS, ANAEROBIC RESPIRATION, INTERNAL RESISTANCE

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Chicago
Clauwaert, Peter, Peter Aelterman, Hai The Pham, Liesje De Schamphelaire, Marta Carballa, Korneel Rabaey, and Willy Verstraete. 2008. “Minimizing Losses in Bio-electrochemical Systems: The Road to Applications.” Applied Microbiology and Biotechnology 79 (6): 901–913.
APA
Clauwaert, P., Aelterman, P., Pham, H. T., De Schamphelaire, L., Carballa, M., Rabaey, K., & Verstraete, W. (2008). Minimizing losses in bio-electrochemical systems: the road to applications. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 79(6), 901–913.
Vancouver
1.
Clauwaert P, Aelterman P, Pham HT, De Schamphelaire L, Carballa M, Rabaey K, et al. Minimizing losses in bio-electrochemical systems: the road to applications. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY. 2008;79(6):901–13.
MLA
Clauwaert, Peter, Peter Aelterman, Hai The Pham, et al. “Minimizing Losses in Bio-electrochemical Systems: The Road to Applications.” APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 79.6 (2008): 901–913. Print.
@article{445100,
  abstract     = {Bio-electrochemical systems (BESs) enable microbial catalysis of electrochemical reactions. Plain electrical power production combined with wastewater treatment by microbial fuel cells (MFCs) has been the primary application purpose for BESs. However, large-scale power production and a high chemical oxygen demand conversion rates must be achieved at a benchmark cost to make MFCs economical competitive in this context. Recently, a number of valuable oxidation or reduction reactions demonstrating the versatility of BESs have been described. Indeed, BESs can produce hydrogen, bring about denitrification, or reductive dehalogenation. Moreover, BESs also appear to be promising in the field of online biosensors. To effectively apply BESs in practice, both biological and electrochemical losses need to be further minimized. At present, the costs of reactor materials have to be decreased, and the volumetric biocatalyst activity in the systems has to be increased substantially. Furthermore, both the ohmic cell resistance and the pH gradients need to be minimized. In this review, these losses and constraints are discussed from an electrochemical viewpoint. Finally, an overview of potential applications and innovative research lines is given for BESs.},
  author       = {Clauwaert, Peter and Aelterman, Peter and Pham, Hai The and De Schamphelaire, Liesje and Carballa, Marta and Rabaey, Korneel and Verstraete, Willy},
  issn         = {0175-7598},
  journal      = {APPLIED MICROBIOLOGY AND BIOTECHNOLOGY},
  keyword      = {bioenergy,biofuel cell,biocatalyzed electrolysis,overpotentials,biocatalysts,ohmic resistance,MICROBIAL FUEL-CELLS,CATHODIC OXYGEN REDUCTION,EXTRACELLULAR ELECTRON-TRANSFER,ION-EXCHANGE MEMBRANES,WASTE-WATER TREATMENT,ELECTRICITY-GENERATION,BIOCATALYZED ELECTROLYSIS,SHEWANELLA-ONEIDENSIS,ANAEROBIC RESPIRATION,INTERNAL RESISTANCE},
  language     = {eng},
  number       = {6},
  pages        = {901--913},
  title        = {Minimizing losses in bio-electrochemical systems: the road to applications},
  url          = {http://dx.doi.org/10.1007/s00253-008-1522-2},
  volume       = {79},
  year         = {2008},
}

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