Journal of Food, Agriculture and Environment

Economic evaluation of the use of biogas in Entre Rios Do Oeste, Brazil

Author(s):

Thiago Edwiges *, Armin Feiden, Charles Carneiro, Carlos Eduardo Camargo Nogueira, Dangela Maria Fernandes

Recieved Date: 2012-05-22, Accepted Date: 2012-10-02

Abstract:

Brazil occupies the fifth position on the worldwide ranking of the biggest producers of swine meat. The West region of Paraná province has been showing up in this scenario counting with a herd of over 3 million swine in an area of approximately 9,000 km². The challenge is to manage this system from an environmental point of view, having in mind that the swine culture produces significant quantities of residual biomass which contains high amounts of pollutants. On the other hand, the biogas produced by the anaerobic digestion of this biomass can be either energetically or economically used when properly administrated, contributing with the decentralization of energy production, and, thus, with better economic viability for the implantation of biogas distribution systems. Therefore, the goal of this project was to evaluate the potential of the energetic usage of the animal residual biomass in a small watershed in the county of Entre Rios do Oeste, located in the West region of Paraná province, and also perform a study of the comparative economic viability between two scenarios of the residual biomass management. The indicators used to compose the comparative economical viability analyses were the Net Present Value, Discounted Payback Period, the Internal Rate of Return and its correlation with the Minimum Acceptable Rate of Return. The survey indicated a herd of 20,682 swine with the potential of producing 1,012,100 m³ of biogas annually. The comparative economical evaluation revealed that the decentralized scenario of residual biomass management shows better economical indicators. Based on the analysed indicators, it can be concluded that the quantity of biogas produced by the referred watershed presents viability for the implantation of projects that look for its economic-energetic reclamation and this template can be reproduced on different watershed with similar characteristics. 

Keywords:

Renewable energy, biogas, economic evaluation

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Environment
Pages: 1121-1123

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