Carbonaceous and Protein Constituents in Dairy Wastewater Lead to a Differentiated Current Generation in Microbial Fuel Cells (MFCs)

Authors

  • Bibiana Cercado Centro de Investigación y Desarrollo Tecnológico en Electroquímica
  • Ana Laura Vega-Guerrero Centro de Investigación y Desarrollo Tecnológico en Electroquímica
  • Francisco Rodríguez-Valadez Centro de Investigación y Desarrollo Tecnológico en Electroquímica
  • José Luis Hernández- López Centro de Investigación y Desarrollo Tecnológico en Electroquímica
  • Luis Felipe Cházaro-Ruiz Instituto Potosino de Investigación Científica y Tecnológica A.C.
  • Marie-Line Délia Université de Toulouse (INPT)
  • Alain Bergel Université de Toulouse (INPT)

DOI:

https://doi.org/10.29356/jmcs.v58i3.137

Keywords:

Microbial fuel cell, dairy wastewater, bioanode, current density, casein, lactose

Abstract

The effect of real dairy wastewater (DWW) additions on the current density generated by a bioanode was evaluated in a half cell configuration under potentiostatic control, thus simulating the anodic chamber of a Microbial Fuel Cell. Low substrate additions increased current density up to 1655 ± 136 mA m-2, forming a two-current peak pattern. Then the system was tested with a casein-lactose synthetic media. A high protein concentration reduced the current density; individual compounds led to the highest current (330.5 mA m-2 with casein; 1276 mA m-2 with lactose). Moreover, the protein reduced the current start up time.

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Author Biographies

Luis Felipe Cházaro-Ruiz, Instituto Potosino de Investigación Científica y Tecnológica A.C.

División de Ciencias Ambientales

Marie-Line Délia, Université de Toulouse (INPT)

Laboratoire de Génie Chimique (LGC), CNRS

Alain Bergel, Université de Toulouse (INPT)

Laboratoire de Génie Chimique (LGC), CNRS

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Published

2017-10-12

Issue

Vol. 58 No. 3 (2014): Special Issue: Environmental Electrochemistry

Section

Regular Articles

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