Design de um biodigestor funcional para necessidades domésticas

Abstract

The Maputo Municipal Slaughterhouse faces problems with the disposal of effluent generated during the slaughter of animals, cleaning and disinfection of the site. These are directly discharged without prior treatment, generating a series of environmental series of environmental impacts. The general aim of this study was to assess the energy efficiency of the biogas produced from cattle manure. To this end, the prototype biodigester was designed and agreed upon, followed by an assessment of the availability of raw materials to feed the biodigester, by quantification of the effluents generated, the quantity of biogas and the quality of the biogas and the quality of the biofertilizer generated during the biogas production process. biogas production process (anaerobic biodigestion). The project in question showed how easy it is to build and operate the biodigester in which it is possible to monitor the production of biogas production on a daily basis, understand the relationship between climatic variables, such as temperature, and the quantity of biogas produced and at the end of the process observe the formation of biofertilizers. In this work it was not possible to assess the explosiveness of the biogas. It was observed that actual biogas production was lower than that calculated theoretically, due to the theoretically calculated, this was due to biogas escaping from the biodigester. caused by flaws in the assembly of the biodigester. The biofertilizer was found to be of good quality, even if only superficially, as it was found to have an acceptable quality and growth rate.(TRADUÇAO NOSSA)