Bioelectricity through microbial fuel cells from decomposed fruits using lead and copper electrodes.

Abstract

Microbial fuel cells (MFC) is a technology that generates electrical energy using organic matter as fuel, becoming a new way of generating electricity that is friendly to the environment. In this research work, MFCs were used with lead and copper electrodes, and as fuel the wastes from Aguaymanto, Camu-camu, Cocona, Granadilla, Tomato and Tuna. The MFCs were monitored for 22 days the voltage, current and pH parameters; as well as current density (CD) and power density (PD) values. The MFC with cocona substrate generated greater voltage during the entire monitoring period, from 0.52 to 0.36 V. While the camu-camu generated a greater current of 6.1 to 5.6 mA, from the first to the last day. All cells show slightly acidic pH, in the same way that volume losses were also observed, being the MFC with granadilla the one that showed greater loss. MFCs with substrates of camu-camu, aguaymanto, cocona, tomato, granadilla and prickly pear showed 7.15, 5.23, 4.14, 4.13, 3.25 and 3.72 W/cm2 of DPmax. in 0.54, 0.42, 0.75, 0.29, 0.45 and 0.56 A/cm2 of DC. Finally, it was possible to generate bioelectricity successfully, giving a solution to the importing and exporting companies of this type of fruit-vegetable for their own benefit.