Estudo da viabilidade econômica para a instalação de um biodigestor em um condomínio para avicultura de corte

Abstract

Currently, Brazil occupies the third position in the world ranking of poultry production and this sector has great prominence in the economy of the country. Linked to high production, there is a generation of a considerable amount of waste. However, when not properly managed, such wastes have high polluting potential, causing serious environmental impacts to the fauna and flora. In order to reconcile the economic and environmental bias, the present work had the objective of evaluating the technical and economical viability for the implantation of a tubular flow anaerobic biodigestor fed chicken litter for the production of biogas in a set of located chicken condominiums located in Campo Mourão - PR. Firstly, it was estimated the volume of biogas and biofertilizer that could be generated when using the biomass residues produced in the aviary. These volumes were then converted into monetary amounts and the carbon credits quotas included in the Clean Development Mechanisms were also included, thus generating a revenue of R$ 1.328.720,19 per year. Subsequently, data related to the costs to the installation, maintenance and operation of a biodigester system to be installed in the aviary were collected, totaling R$ 3.952.726,89. With these values and with the help of the deterministic methods of investment, VPL, VAUE and TIR, the financial feasibility of the project was estimated in two distinct scenarios, one realistic and one pessimistic, for a ten year horizon. In both, it was found that the project becomes profitable. In the realistic scenario, as from the fourth year, there is a financial return, since this one presented a VPL of R$ 5.420.574,91, VAUE of 736.482,28 and TIR of 29.85%. In the pessimistic scenario, the enterprise again has positive revenues from the fifth year.