Construcción de una pila de combustible microbiana (PCM) con bacterias autóctonas para el tratamiento de aguas residuales y producción de energía eléctrica

Abstract

This research accomplished the building of a microbial fuel cell (MFC) H and type chamber using native bacteria and sediments Paute’s dam, province of Azuay-Ecuador, in order to treat waste water of textile industry and simultaneously produce electric energy. Both, the effect of the exchange membrane, and electrode size’s anode were studied. The MFC’s performance was followed by six days color removal, %RC, the open circuit potential, CA, the potential for closed circuit, CC, the current intensity, I; the power density, DP, internal resistance, RINT; the percentage of removal of the DQO, %RDQO and the percentage of coulombic efficiency, % EC. Using PCMs type H, the %RC was between 22.0% and 52.5%, DP 6.40 and 11.27 mW/m2 with RINT between 3 167 Ω and 55 000 Ω. While with PCMs of unique chamber, the %RC was 22.9 and 45.8%, DP of 0.52 and 4.8 mW/m2 with RINT between 2 833 Ω - 28 333Ω.The best PCMs were; PCM type H with salt bridge and electrode of 5.44 cm2 and PCM of a camera with electrode of 2.51 cm2.