Avaliação do potencial de produção de biogás dos resíduos da suinocultura codigeridos com resíduos agrícultura brasileira

Abstract

Swine breeding results in a series of wastes that if not properly treated pollute the environment. The biogas production from these residues through anaerobic digestion (AD) transforms an environmental liability into raw material for the production of energy. However the AD is far from a simple process, factors such as composition of the waste, toxicity, production operation can limit the production of biogas. Anaerobic co-digestion, the simultaneous digestion of two or more substrates, is a viable option to overcome the disadvantages of digestion, improving biogas production. Brazil has great agricultural potential, an activity that also generates a significant amount of waste. In this way, the objective of this research was to evaluate the potential for the expansion of biogas production of the swine residues co-digestion with the main agricultural residues produced in Brazil. The results were achieved through a Bibliographic portfolio collected on the biogas production process, followed by the identification of the main agricultural residues produced in Brazil, from these results a search was started for key words in the main international databases in order to verify which agricultural residues produced in Brazil may be co-digestion with swine residues. Finally, the proportion of waste used, the amount of biogas produced and the process operating conditions were analyzed. The results indicate that rice and maize residues can be co-digestion with swine residues; the operational conditions in which there was more biogas production from AD of these residues were identified. In this way, the biogas production can be increased through the anaerobic codigestion of swine residues with agricultural residues of rice and maize.