Cultivos energéticos y residuos agro-ganaderos como sustratos para optimizar el potencial de generación de biogás en procesos de digestión anaerobia

Abstract

The optimization study of initial conditions of an anaerobic digestion using energy crops and agroindustrial waste involves an important progress to livestock sector, and it is the main topic of this study. On the one hand, there are few biogas plants in Spain today. For this reason that technology is necessary to impulse it. On the other hand, a lot of studies about anaerobic digestion employing different substrates are found in literature. However, most of the research papers are performed in a small scale which is not reproducible in a real scale because obstacles or difficulties from a big scale are not reflected. Thus, according to green Economy, this study facilitates the set-up of biogas facilities, provides different mixtures in the feeding and provides a guarantee of operation and continuity of the biogas plant. Specifically, assessments developed in a pilot scale have been studied to get two main aims, a simple replication of anaerobic digestion process, and an elevate biogas yield using different mixture of substrates. The results obtained after evaluating the biogas/methane yield for each substrate help to the optimize the substrates proportion in the feeding.