| dc.description.abstract | The world stage is faced with a continuous growth of population and consequently
the consumption of energy and food, promotes the development of agro-energy, trat
raise the potential of local propensities. In its production, the agricultural sector
generates non value-added market waste. Biomass resulting from the confinement of
pig farming has high organic load, when released in nature without proper health
treatment, culminates in strong environmental liabilities. The biodigestion of this
biomass generate biogas through the proper handling of waste
that can provide self-supply at rural properties. As a rule, this is economically, socially
and environmentally sustainable. The conversion of biomass into energy, also adds
value to digestato (biofertilizer), and, therefore, generates income to the rural
producer, i.e. transforms a passive in an active economic environment, meeting the
expectations of sustainable development with a focus on efficiency and on energy
security. This study was developed in a farm in the Mato Grosso do Sul State. The
activity of this farm is targeting the swine farms and produces an average of
184.645,40 m³/year of waste, which represents a biogas production potential of
around 2,921,066.37 m³/year, which converted into electrical energy is equivalent to
4,089,492.92 kWh/year. The study presents an analysis of economic and financial
feasibility for energy use of biogas in electricity generation and biofertilizer produced
in its dependencies, considering their respective uses and benefits. The generation
of electric power is for the inner property activities, which shows a concrete possibility
to make the rural property energetically sustainable, in order to reduce their
dependence from conventional sources of energy. So, it is possible to conclude that
there is a potential for production of biogas for power generation enough to supply
90% of the energy consumed on the farm and reducing 78% the production costs,
which represents R$ 873.823,27/yearIn addition, in this scenario it is possible to add
value to the second product of the biodigestion process, that is the biofertilizer, which
represented an economic income of R$ 1,031,816.22 per year on the purchase of
fertilizers and chemical fertilizers, and avoiding negative externalities by improper
waste disposal. | |
