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Impact of Dragon Fruit Waste in Microbial Fuel Cells to Generate Friendly Electric Energy

Author

Listed:
  • Rojas-Flores Segundo

    (Vicerrectorado de Investigación, Universidad Autónoma del Perú, Lima 15842, Peru)

  • Santiago M. Benites

    (Vicerrectorado de Investigación, Universidad Autónoma del Perú, Lima 15842, Peru)

  • Magaly De La Cruz-Noriega

    (Instituto de Investigación en Ciencias y Tecnología de la Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Juan Vives-Garnique

    (Escuela de Ingeniería Mecánica Eléctrica, Universidad Señor de Sipán, Chiclayo 14000, Peru)

  • Nélida Milly Otiniano

    (Instituto de Investigación en Ciencias y Tecnología de la Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Walter Rojas-Villacorta

    (Programa de Investigación Formativa, Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Moisés Gallozzo-Cardenas

    (Departamento de Ciencias, Universidad Tecnológica del Perú, Trujillo 13011, Peru)

  • Daniel Delfín-Narciso

    (Grupo de Investigación en Ciencias Aplicadas y Nuevas Tecnologías, Universidad Privada del Norte, Trujillo 13007, Peru)

  • Félix Díaz

    (Escuela Académica Profesional de Medicina Humana, Universidad Norbert Wiener, Lima 15046, Peru)

Abstract

Pollution generated by the misuse of large amounts of fruit and vegetable waste has become a major environmental and social problem for developing countries due to the absence of specialized collection centers for this type of waste. This research aims to generate electricity in an eco-friendly way using red dragon fruit (pitahaya) waste as the fuel in single-chamber microbial fuel cells on a laboratory scale using zinc and copper electrodes. It was possible to generate voltage and current peaks of 0.46 ± 0.03 V and 2.86 ± 0.07 mA, respectively, with an optimum operating pH of 4.22 ± 0.09 and an electrical conductivity of 175.86 ± 4.72 mS/cm at 8 °Brix until the tenth day of monitoring. An internal resistance of 75.58 ± 5.89 Ω was also calculated with a maximum power density of 304.33 ± 16.51 mW/cm 2 at a current density of 5.06 A/cm 2 , while the FTIR spectra showed a decrease in the initial compounds and endings, especially at the 3331 cm −1 peaks of the O–H bonds. Finally, the yeast-like fungus Geotrichum candidum was molecularly identified (99.59%). This research will provide great opportunities for the generation of renewable energy using biomass as fuel through electronic devices with great potential to generate electricity.

Suggested Citation

  • Rojas-Flores Segundo & Santiago M. Benites & Magaly De La Cruz-Noriega & Juan Vives-Garnique & Nélida Milly Otiniano & Walter Rojas-Villacorta & Moisés Gallozzo-Cardenas & Daniel Delfín-Narciso & Féli, 2023. "Impact of Dragon Fruit Waste in Microbial Fuel Cells to Generate Friendly Electric Energy," Sustainability, MDPI, vol. 15(9), pages 1-12, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:9:p:7316-:d:1134888
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    Cited by:

    1. Rojas-Flores Segundo & De La Cruz-Noriega Magaly & Cabanillas-Chirinos Luis & Nélida Milly Otiniano & Nancy Soto-Deza & Nicole Terrones-Rodriguez & De La Cruz-Cerquin Mayra, 2024. "Obtaining Sustainable Electrical Energy from Pepper Waste," Sustainability, MDPI, vol. 16(8), pages 1-12, April.

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