Produção de Hidrogênio a partir da vinhaça de cana-de-açúcar em reator anaeróbio em batelada

Abstract

Global demand for energy is growing and has been a concern of modern society. The search for clean and renewable energy development is an important issue in order to avoid an energy crisis and minimize environmental impacts occurring due to the use of fossil fuels for many years. In this scenario, hydrogen rises as an alternative source of energy, since its combustion produces only oxygen and water, thus, considered as clean and renewable fuel. Biological hydrogen production through anaerobic digestion appears as an alternative for the processing of vinasse (waste processing of sugarcane), it is possible to combine energy generation (biogas) to the environmental framework of this waste without interfering with its quality as biofertilizers. In this sense, the objective of this study was to evaluate the production of hydrogen from vinasse from sugarcane as a carbon source in different concentrations. The hydrogen production assays were performed in replicates in anaerobic batch reactors using inoculum from the natural fermentation of vinasse.