Bioelectroremediación de efluentes líquidos de la industria hidrocarburífera mediante celda de electrólisis microbiana (mec) de una muestra del campo pungarayacu : identificación de las condiciones electroquímicas de la muestra de crudo del campo pungarayacu y evaluación de las propiedades electroquímicas de la celda de electrólisis microbiana (mec).

Abstract

The work was carried out with the objective of studying the functioning of the microbial electrolysis cell to identify its bioelectrochemical variables of operation, and its voltammetric interaction in the presence of bacteria. These parameters allow evaluating the bioelectroremediation of water contaminated with effluents from the hydrocarbon industry. The bioelectrochemical system was conditioned with two microbial electrolysis cells, graphite plates (electrodes), mineral bacteriological broths prepared with and without molasses, a constant voltage and intensity power source, while the voltammetry test equipment consisted of a potentiostat, 50 ml work cell, to which the work electrodes were attached. The established mechanical working configurations are the following: silver reference electrode, graphite counter electrode and graphite working electrode for configuration 1 and silver reference electrode, graphite counter electrode and silver working electrode for configuration 2. The experimental results show that the critical micellar concentration is found at 15% of Tween 80 and with positive results in system A, without silver-silver electrode configuration, it was determined that molasses is not a good substrate for the growth of micelles. microorganisms, the voltammograms show the presence of the reduction peak (cathode) that increases as the evaluation days pass in the microbial electrolysis cell, due to the activity of the microorganisms and the intensity of the potential. Originating results from day 3 with a peak located at -0.164 V and a height of 7.250 mA, 9 days located at -0.213 V and a peak height of 16.610 mA, 15 days located at -0.346 V and 26.110 mA, and the last test at 21 days peak location at -0.304 V and height 28.380 mA.