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Preliminary Study of Bioelectricity Generation Using Lettuce Waste as Substrate by Microbial Fuel Cells

Author

Listed:
  • Walter Rojas-Villacorta

    (Programa de Investigación Formativa e Integridad Científica, Universidad César Vallejo, Trujillo 13001, Peru)

  • Segundo Rojas-Flores

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

  • Santiago M. Benites

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

  • Renny Nazario-Naveda

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

  • Cecilia V. Romero

    (Facultad de Medicina, Universidad Nacional de Trujillo, 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)

  • Emzon Murga-Torres

    (Multidisciplinary Research Laboratory, Universidad Privada Antenor Orrego (UPAO), Trujillo 13008, Peru)

Abstract

Agricultural waste negatively impacts the environment and generates economic difficulties for agro-industrial companies and farmers. As a result, it is necessary for an eco-friendly and sustainable alternative to managing this type of waste. Therefore, the research aimed to investigate lettuce waste as an alternative substrate to generate bioelectricity in single-chamber microbial fuel cells (scMFCs). It was possible to report voltage and electric current peaks of 0.959 ± 0.026 V and 5.697 ± 0.065 mA on the fourteenth day, values that were attained with an optimum pH of 7.867 ± 0.147 and with an electrical conductivity of 118.964 ± 8.888 mS/cm. Moreover, as time passed the values began to decline slowly. The calculated value of maximum power density was 378.145 ± 5.417 mW/cm 2 whose current density was 5.965 A/cm 2 , while the internal resistance reported using Ohm’s Law was 87.594 ± 6.226 Ω. Finally, it was possible to identify the Stenotrophomonas maltophilia bacterium (99.59%) on a molecular scale, as one of the microorganisms present in the anodic biofilm. The three microbial fuel cells were connected in series and demonstrated that they were capable of lighting an LED bulb, with a voltage of 2.18 V.

Suggested Citation

  • Walter Rojas-Villacorta & Segundo Rojas-Flores & Santiago M. Benites & Renny Nazario-Naveda & Cecilia V. Romero & Moisés Gallozzo-Cardenas & Daniel Delfín-Narciso & Félix Díaz & Emzon Murga-Torres, 2023. "Preliminary Study of Bioelectricity Generation Using Lettuce Waste as Substrate by Microbial Fuel Cells," Sustainability, MDPI, vol. 15(13), pages 1-14, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:13:p:10339-:d:1183541
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    References listed on IDEAS

    as
    1. Segundo Rojas-Flores & Magaly De La Cruz-Noriega & Luis Cabanillas-Chirinos & Renny Nazario-Naveda & Moisés Gallozzo-Cardenas & Félix Diaz & Emzon Murga-Torres, 2023. "Potential Use of Coriander Waste as Fuel for the Generation of Electric Power," Sustainability, MDPI, vol. 15(2), pages 1-10, January.
    2. Aritro Banerjee & Rajnish Kaur Calay & Fasil Ejigu Eregno, 2022. "Role and Important Properties of a Membrane with Its Recent Advancement in a Microbial Fuel Cell," Energies, MDPI, vol. 15(2), pages 1-15, January.
    3. Segundo Rojas-Flores & Luis Cabanillas-Chirinos & Renny Nazario-Naveda & Moisés Gallozzo-Cardenas & Félix Diaz & Daniel Delfin-Narciso & Walter Rojas-Villacorta, 2023. "Use of Tangerine Waste as Fuel for the Generation of Electric Current," Sustainability, MDPI, vol. 15(4), pages 1-11, February.
    4. Szymon Potrykus & Luis Fernando León-Fernández & Janusz Nieznański & Dariusz Karkosiński & Francisco Jesus Fernandez-Morales, 2021. "The Influence of External Load on the Performance of Microbial Fuel Cells," Energies, MDPI, vol. 14(3), pages 1-11, January.
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