Estimativa da capacidade de produção de biogás e energia elétrica através de despejos de suinocultura tratados em biodigestor anaeróbio

Abstract

Pig farming is an activity of great importance for the Brazilian economy, however, it is an activity of great polluting power, since creation generates great effluent volumes having a characteristic of high organic load, which when not receiving proper treatments are discarded in nature on the soil and in water sources causing numerous environmental problems. In this way, arises therefore the need to improve treatment methods such as the biodigester which Besides the advantage of treating the effluent, the biogas generated in the process is captured minimizing the incidence of methane in the atmosphere and can be used on the to raise piglets in the nursery and in the generation of electricity through a generator engine. The present work aims to make a theoretical estimate potential of biogas production in the existing treatment system in a swine enterprise, supplied by waste from an average of 3000 finishing pigs and located in the municipality of Limoeiro de Anadia - AL. The theoretical production of biogas by estimated COD removed showed a average yield of 77.72 m3 / d in the biodigester. With the study it was found that for This biogas production, with the installation of a monthly electricity production capacity of 5478.63 kWh / month which leading in consideration the Brazilian average of electric consumption could supply approximately 36 residences.