Potential Use of Mango Waste and Microalgae Spirulina sp. for Bioelectricity Generation

De La C.-N.M.; Nazario-Naveda R.; Benites S.M.; Rojas-Flores S.; Delfín-Narciso D.; Rojas-Villacorta W.; Díaz F. · Environmental Research, Engineering and Management (2022) · DOI: 10.5755/j01.erem.78.3.31117

Resumen

Potential use of organic waste and microalgae generates bioelectricity and thereby reduces harmful effects on the environment. These residues are used due to their high content of electron-generating microorganisms. However, so far, they have not been used simultaneously. Therefore, this research uses mango waste and mi-croalgae Spirulina sp. in double-chamber microbial fuel cells to generate bioelectricity. The cells were made at a laboratory scale using zinc and copper electrodes, achieving a maximum current and voltage of 7.5948 ± 0.3109 mA and 0.84546 ± 0.314 V, with maximum electrical conductivity of the substrate being 157.712 ± 4.56 mS/cm and an optimum operating pH being 5.016 ± 0.086. The cells showed a low internal resistance of ap-proximately 205.056 ± 25 Ω, and a maximum power density of 657.958 ± 21.114 mW/cm2 at a current density of 4.484 A/cm2. This research provides an excellent opportunity for mango farmers and exporting and import-ing companies because they can use their own waste to reduce their electricity costs when this prototype is brought to a large scale.

Instituciones: Universidad Nacional de Trujillo; Universidad Autónoma del Perú; Universidad Privada Norbert Wiener; Universidad Privada del Norte; Universidad Señor de Sipán