Dimensionamento de um biodigestor de múltiplo uso, isto é, como produtor de biogás para energia doméstica e biofertilizante

Abstract

The rise in the price of fossil fuels and global warming since the beginning of the 1970s, has forced states to seriously research sustainable sustainable and renewable energies. In this context, the In this context, the present project arises, in which the professional internship that is part of the culmination of the degree in Environmental Engineering, in which the research focused on the design of a homemade biodigester and with the aim of producing home-made biogas for primary energy for cooking. These new ways of producing clean or create a balance between nature and human needs, Renewable energies have the advantage of self-regeneration compared to non-renewable energies. non-renewable. This work was carried out in Inkassane, Katembe Municipal District, Maputo City. City of Maputo, in a family home that raises cattle, which makes it conducive to the development of this enterprise. makes it conducive to the development of this enterprise. The methodology used in this work consisted of sizing a biodigester and controlling the mixture or biomass for 30 days and carrying out the physical test for production of biogas using bovine and porcine excrement in a residence that was assisted by a company called JEM - Bioenergia Ltd.After the production of biogas, the biodigester by-product was used to fertilize the gardens at the study site. fertilization of the vegetable gardens at the study site. biogas was 50% methane, and the fertilizer also proved to be full of nutrients and recommended for agriculture.(TRADUÇAO NOSSA)