Viabilidade econômica da implantação de um biodigestor para geração de energia a partir de resíduos sólidos orgânicos

Abstract

Solid waste generation and energy demand increased considerably with the rapid development of countries. In the perspective of the depletion of fossil fuels came the need to increase the use of alternative renewable energy sources. Biomass was highlighted in the last years due to the reuse of available organic matter. The biological process is performed through biodigesters which have main byproducts such as biogas for power generation and biofertilizer for fertilization. The aim of this study is to analyze the economic viability of implementation of a biodigester for power generation from organic solid waste in a ceramic industry located in west of Paraná. To carry out this study a clash flow was projected from operational costs and generated revenues. Economic Engineering tools such as NPV, IRR and Payback were used. The project is not profitable for a period of five years, with IRR of 10,52% and NPV of -R$ 33.083,23, comparing with a minimum attractiveness rate of 15%. The payback of the investment is six years, over than the period considered by the owner.