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For convenience and simplicity of construction in recent years, the tubular digesters have been used for the management and treatment of swine wastes. However, the scarcity of information about the energy composition of these structures limits the realization of energetic analyzes related these studies biosystems. The goal of this work was to evaluate the estimated energy involved in the construction of anaerobic biodigesters used for the management and treatment of swine wastes. To this end, the components involved in the construction of anaerobic biodigesters was quantified and transformed in energy units. In following, the quantity was multiplied by their respective energy of these coefficients. The results indicated that the construction of biodigesters consumed 490,179.59 MJ of energy. The most significant energy component in energy consumption were flexible PVC geomembranes (29.33%), followed by pipes and sealing of tarps with 28.45% and 21.06% energy consumed, respectively. Considering the useful volume of the biodigesters, the energy index was determined was 225.89 MJ m-3.

CUSTO ENERGÉTICO DE CONSTRUÇÃO DE BIODIGESTORES PARA O MANEJO E TRATAMENTO DE RESÍDUOS DA SUINOCULTURA