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Evaluating the Potential of White Asparagus ( Asparagus officinalis L.) Waste as a Fuel Source in Microbial Fuel Cells Across Different pH Levels

Author

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  • Rojas-Flores Segundo

    (Institutos y Centros de Investigación de la Universidad Cesar Vallejo, Universidad Cesar Vallejo, Trujillo 13001, Peru
    Renewable Resources Nanotech Group, Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Cabanillas-Chirinos Luis

    (Institutos y Centros de Investigación de la Universidad Cesar Vallejo, Universidad Cesar Vallejo, Trujillo 13001, Peru
    Renewable Resources Nanotech Group, Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Nélida Milly Otiniano

    (Institutos y Centros de Investigación de la Universidad Cesar Vallejo, Universidad Cesar Vallejo, Trujillo 13001, Peru
    Renewable Resources Nanotech Group, Universidad Cesar Vallejo, Trujillo 13001, Peru)

  • Magaly De La Cruz-Noriega

    (Institutos y Centros de Investigación de la Universidad Cesar Vallejo, Universidad Cesar Vallejo, Trujillo 13001, Peru
    Renewable Resources Nanotech Group, Universidad Cesar Vallejo, Trujillo 13001, Peru)

Abstract

The intensification of agricultural production due to high global demand has led to uncontrolled waste production from this industry, creating an environmental imbalance due to inadequate waste management. In developing regions, the lack of access to electricity has become a critical problem, affecting people’s health, education, and economy. To address this issue, alternative and sustainable ways of generating electricity have been explored. This research focuses on the potential of using asparagus waste in single-chamber microbial fuel cells (MFCs) at different pH levels (4, 4.7—target, 7, and 9) to achieve optimal performance. It has been demonstrated that using this substrate, the MFC at pH 7 obtained the best results on the seventh day, generating an electric current of 4.859 mA and a maximum voltage of 0.965 V. The substrate showed an oxidation-reduction potential of 312.821 mV, a chemical oxygen demand reduction of 76.47%, and an electrical conductivity of 254.854 mS/cm. Additionally, it managed to generate a power density of 2.149 mW/cm 2 at a current density of 5.979 mA/cm 2 . MFCs at different pH levels (4, 4.7—target, 7, and 9) demonstrated their potential to generate electrical energy by powering an LED light when connected in series. This research holds promise in promoting sustainable energy solutions for the future.

Suggested Citation

  • Rojas-Flores Segundo & Cabanillas-Chirinos Luis & Nélida Milly Otiniano & Magaly De La Cruz-Noriega, 2025. "Evaluating the Potential of White Asparagus ( Asparagus officinalis L.) Waste as a Fuel Source in Microbial Fuel Cells Across Different pH Levels," Sustainability, MDPI, vol. 17(10), pages 1-13, May.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:10:p:4486-:d:1655969
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    References listed on IDEAS

    as
    1. 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.
    2. Miguel H. Fernandez-Fuentes & Andrea A. Eras-Almeida & Miguel A. Egido-Aguilera, 2021. "Characterization of Technological Innovations in Photovoltaic Rural Electrification, Based on the Experiences of Bolivia, Peru, and Argentina: Third Generation Solar Home Systems," Sustainability, MDPI, vol. 13(6), pages 1-23, March.
    3. Claudio Quiñones-Cerna & Juan Carlos Rodríguez-Soto & Gabriela Barraza-Jáuregui & Johnny Huanes-Carranza & José Alfredo Cruz-Monzón & Wilmer Ugarte-López & Fernando Hurtado-Butrón & Fanny Samanamud-Mo, 2024. "Bioconversion of Agroindustrial Asparagus Waste into Bacterial Cellulose by Komagataeibacter rhaeticus," Sustainability, MDPI, vol. 16(2), pages 1-14, January.
    4. Tatsuya Shimizu, 2022. "The Growth of the Fruit and Vegetable Export Industry in Peru," SpringerBriefs in Economics, Springer, number 978-981-16-9629-9, September.
    5. Rojas-Flores Segundo & De La Cruz-Noriega Magaly & Cabanillas-Chirinos Luis & Nélida Milly Otiniano & Nancy Soto-Deza & Nicole Terrones-Rodríguez, 2024. "Reducing Plastic Waste and Generating Bioelectricity Simultaneously through Fuel Cells Using the Fungus Pleurotus ostreatus," Sustainability, MDPI, vol. 16(18), pages 1-12, September.
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