Energy Recovery and Greenhouse Gas Emission Reduction Potential of Bio-Waste in South American Countries

The present research work aimed to evaluate the effect of different treatments composed of solid sediments, water, and biomass on the production of methane (CH4) gas by anaerobic biodigestion. Concerning the methane production, three treatments were carried out by alternating the variables with biomass (sugar cane, sugar cane/banana peel, and banana peel). The evaluated time of digestion was 14 days. The gas chromatography was employed to measure the concentration of the methane gas generated in the bioreactors. The best results were with bagasse de sugar cane with the banana peel as biomass produced less than CH4 (3.78%) and more than CO2 (54.31%) compared with the sugar cane bagasse. The obtained results of CH4 (72.98%) and CO2 (13.59%) included alternative factors such as temperature and digestion time important for higher production. In addition to this, a comparison of the production potentials of each biomass was used in the experimentation, having as a result that the sugarcane bagasse is better with 796.78 mL/g of methane per month compared to the banana peel biomass, which was 9.36 mL/g of methane monthly.