Electricity generation from Nopal biogas effluent using a surface modified clay cup (cantarito)microbial fuel cell

Sathish Kumar Kamaraj, Alejandro Esqueda Rivera, Selvasankar Murugesan, Jaime García-Mena, Otoniel Maya, Claudio Frausto-Reyes, José Tapia-Ramírez, Hector Silos Espino, Felipe Caballero-Briones

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A modified clay cup (cantarito)microbial fuel cell (C-MFCs)was designed to digest the biomass effluent from a nopal biogas (NBE). To improve the process, commercial acrylic varnish (AV)was applied to the C-MFCs. The experiment was performed as:Both-C-MFCs, painting of AV on both sides of the clay cup; In-C-MFCs, painting of AV on the internal side, and Out-C-MFCs painting of AV on the external side. The order for the maximum volumetric power densities were Both-C-MFCs (1841.99 mW/m 3 )>Out-C-MFCs (1023.74 mW/m 3 )>In-C-MFCs (448.90 mW/m 3 ). The control experiment without applied varnish did not show a stable potential, supporting the idea that the acryloyl group in varnish could favor the performance. Finally, a 4-digits clock was powered with two, Both-C-MFCs connected in series; the microbial diversity in this format was explored and a well-defined bacterial community including members of the phyla Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria, Synergistetes and candidate division TM7 was found.

Original languageEnglish
Article numbere01506
Issue number4
Publication statusPublished - 1 Apr 2019



  • Energy

ASJC Scopus subject areas

  • General

Cite this

Kamaraj, S. K., Rivera, A. E., Murugesan, S., García-Mena, J., Maya, O., Frausto-Reyes, C., Tapia-Ramírez, J., Espino, H. S., & Caballero-Briones, F. (2019). Electricity generation from Nopal biogas effluent using a surface modified clay cup (cantarito)microbial fuel cell. Heliyon, 5(4), [e01506]. https://doi.org/10.1016/j.heliyon.2019.e01506