Bioelectrogenesis with microbial fuel cells (MFCs) using the microalga Chlorella vulgaris and bacterial communities

Ronald Huarachi-Olivera, Alex Dueñas-Gonza, Ursulo Yapo-Pari, Patricia Vega, Margiht Romero-Ugarte, Juan Tapia, Luis Molina, Antonio Lazarte-Rivera, D. G. Pacheco-Salazar, Mario Esparza

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Background Microbial Fuel Cell (MFC) technology is used in various applications such as wastewater treatment with the production of electrical energy. The objective of this study was to estimate the biodepuration of oils and fats, the elimination of blue dye brl and bioelectro-characterization in MFCs with Chlorella vulgaris and bacterial community. Results The operation of MFCs at 32 d showed an increase in bioelectrogenic activity (from 23.17 to 327.67 mW/m2) and in the potential (from 200 to 954 mV), with biodepuration of fats and oils (95%) in the microalgal cathode, and a removal of the chemical oxygen demand COD (anode, 71%, cathode, 78.6%) and the blue dye brl (73%) at the anode, here biofilms were formed by the bacterial community consisting of Actinobacteria and Deltaproteobacteria. Conclusions These findings suggest that MFCs with C. vulgaris and bacterial community have a simultaneous efficiency in the production of bioelectricity and bioremediation processes, becoming an important source of bioenergy in the future.

Original languageEnglish
Pages (from-to)34-43
Number of pages10
JournalElectronic Journal of Biotechnology
Volume31
DOIs
StatePublished - Jan 2018

Bibliographical note

Publisher Copyright:
© 2017

Keywords

  • Biodepuration
  • Bioelectrocharacterization
  • Biofilm
  • Chamber
  • Chlorophyll
  • Electrode
  • Fuel
  • Potential
  • Removal
  • Wastewater

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