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Revista Colombiana de Química
versión impresa ISSN 0120-2804
Resumen
ARBOLEDA AVILES, Daniel Gonzalo et al. Application of a direct current circuit to pick up and to store bioelectricity produced by microbial fuel cells. Rev.Colomb.Quim. [online]. 2019, vol.48, n.3, pp.26-35. ISSN 0120-2804. https://doi.org/10.15446/rev.colomb.quim.v48n3.77011.
Every year the demand for energy worldwide is increasing. There are some alternatives to reduce these problems, such as clean energy or renewable energy. A particular alternative is the microbial fuel cells. These cells are biochemical reactors that convert chemical energy into electricity. The present research evaluated the dairy serum to produce bioelectricity from micro fuel cells (MFC) that were constructed with low-cost materials and with isolated bacteria in anaerobic sediments, located in Ecuadorian national territory, producing maximum voltages of 0.830 V in the circuit and a maximum power density of 30 mW / m2. This low voltage was worked with 50 mL MFCs and with an output voltage of 300 mV. Under these conditions, a FLYBACK lift circuit isolated by the transformer was designed. This new circuit could increase the voltage from 30 mV to enough voltage to light a 2.5 V LED. Therefore, the energy produced by the MFC can be directly used to light a LED and to charge capacitors. This study shows that these MFCs, together with the designed circuit, could be used potentially to generate clean energy.
Palabras clave : MFCs; COD; TOC; voltage; flyback; boost converter; DC - DC converters.