The increasing generation of wastewater with high levels of pollutants has become a serious environmental challenge. In this context, sustainable technologies are required to treat wastewater efficiently. Therefore, it was proposed to evaluate the effect of the biomass of Chlorella sp. on the removal of cadmium and chemical oxygen demand (COD) from municipal wastewater in the district of Urpay, Pataz, La Libertad, Peru, and the generation of electric power through single-chamber microbial fuel cells (MFC). An experimental design was applied, where nine treatments were carried out evaluating three doses of Chlorella sp. (10%, 20% and 30%) at pH values of 6.5, 7.0, and 7.5 of the residual water. Managing to generate peak current and voltage values of 4.61 mA and 1118.5 mV in the MFC at a pH of 7.5 with a dose of 30% of Chlorella sp., this same MFC managed to decrease concentrations of cadm...

A microbial fuel cell (MFC) is a system that can integrate electricity generation and, at the same time, contribute to decontaminating wastewater, becoming an eco-friendly technology with the environment. In this research, microbial fuel cells with graphite and aluminum electrodes were used at different sizes: 9, 25and 64 cm2, and a wastewater sample obtained from a rural location in Peru was used as substrate. The MFCs parameters of voltage, current and conductivity were monitored for 12 days, for the generation of electricity; and the parameters of Chemical Oxygen Demand (COD), Thermotolerant Coliforms, Turbidity and pH, for wastewater treatment. The MFCs with electrodes of 64 cm2 were the ones that had the highest efficiency in the production of electricity, because they generated higher voltage, current and conductivity throughout the days evaluated, with peaks of 0.22 V, 0.08 mA and...

La creciente generación de aguas residuales con altos niveles de contaminantes se ha convertido en un grave desafío ambiental, en este contexto, se requieren de tecnologías sostenibles para tratar eficientemente las aguas residuales. Por ello, se propuso evaluar el efecto de la biomasa de Chlorella sp. en la remoción de cadmio y DQO de las aguas residuales municipales del distrito de Urpay, Pataz, La Libertad y en la generación de electricidad usando celdas de combustible microbianas (CCM). Se aplicó un diseño experimental, en donde se realizaron 9 tratamientos considerando 3 dosis de Chlorella sp. (10%, 20% y 30%), a valores de pH 6.5, 7.0 y 7.5 del agua residual, y con dos réplicas por tratamiento. Los resultados muestran que las mejores condiciones para la remoción del Cd fueron con dosis del 30% y a pH de 7.5, logrando eliminar el 97.5% en 25 días; así mismo, a dichas cond...