Obtención de metano por medio de la combinación de excretas de vacas y conejos

The work shows the methane production that was obtained by combining different substrates of cow and rabbit excreta. Five biodigesters of the Batch type were used for the study, in which they were filled with different proportions of cow, rabbit and water excreta, in order to quantify which combination produced the greatest amount of methane. In order to know the amount of moisture free material and the fraction that has to produce biogas, the dry mass and volatile mass of cow and rabbit excreta were determined. During the test, readings of pH, pressure, temperature and composition of the biogas were taken. In the end it was obtained that the substrate formed by 10% of cow excreta, 40% of rabbit excreta and 50% water, presented the highest amount of methane of all the combinations.