Avaliação econômica do uso de biodigestores na região nordeste.

Abstract

The present paper discusses the economic viability of the use of Indian type biodigestor for energy production in Brazil’s northeastern rural areas. Informations used for discussion were obtained from different sizes of biodigestor, and costs associated to each size were identified and quantified. The cost estimation took into account the required investments and operational costs according to the equipment characteristics. The results indicate that the use of the biodigestor is economically viable and that the bio-gas produced can be used as a substitute for PLG and diesel oil. However, no matters the size of the biodigestor, bio-gas is not economically viable as a substitute for electric power in properties already electrified.