Renewable electric generation in a pig´s farm from the own pig slurry. Energy from biomass

Abstract

This paper introduces the possibility of using a production waste, such as the pig slurry, obtained in the cattle raising industry in order to produce energy. Thermal and electric generation can be obtained by means of a cogeneration system and the two kinds of energy used in the industrial process itself. In this application case, energies would be used for pig slurry heating and to export electric current to the Electric Power System (EPS) respectively. The viability of creating a cogeneration unit in a farm, using the biogas (methane + carbon dioxide) generated by the fermentation, anaerobic digestion (AD), of the pigs slurry as fuel for the motor or turbine, is studied and proposed.