Generation of voltage by means of microbial fuel cells using the bacteriae actinomycetes, bacillus sp and escherichia coli

The energy problems of countries and global warming is one of the most necessary difficulties to be solved by society. In this research, microbial fuel cells (MFCs), a new way of generating voltage using as fuel the bacteria Actinomycetes, Bacillus sp and Escherichia coli. The bacterium Bacillus sp showed higher voltage generation with a peak of 0.65 volts, during the five days of data collection; the pH and conductivity parameters of this bacterium were 7 and 24 mS/cm respectively. Due to the voltage generated from this bacterium the pH was adjusted to 4, 7 and 10 to observe the influence that this parameter has on the voltage produced during twelve days. The pH 7 was the one that showed the highest voltage during the whole sampling. The pH of these cells remained constant as well as their conductivity which was 41.7, 24 and 52.6 mS / cm for the cell of pH 4, 7 and 10 respectively; the data were taken at room temperature (~21°C).