Fundamentos de biodigestão anaeróbia: Conceitos e processos

The correct destination and especially the reuse of waste generated by society is a matter of survival in the current scenario. An interesting fact is that a large part of these residues has organic origin and can be reused for energy generation. Therefore, processes that employ the conversion of these residues into renewable sources of energy, are increasingly necessary. In this sense, the present work aims to discuss the basic concepts and the main processes of obtaining energy by the biogas generated from the anaerobic decomposition of substrates of animal and/or vegetable origin. These processes are enhanced in countries such as Brazil, for example, where agribusiness has a prominent role in the economy, so that the supply of these substrates is not a problem and can be exploited for energy purposes. During the chapters, the main substrates used as biomass will be discussed; how the biogas production process takes place; whether there is automation in biodigestion systems; what is the use given to the stabilized material in the bioreactor; what are the processes of treatment and purification of the biogas generated and, within a more social theme, what is the importance of public policies, laws and state regulation throughout these processes.