Abstract
Biomass is one of the largest sources of energy available in agribusiness activities. Anaerobic biological degradation of organic matter, present in swine manure, produces a gaseous mixture of methane (CH4) and carbon dioxide (CO 2 ). Anaerobic biodigestion is one of the most effective methods for the treatment of manure, obtaining as biogas products; Substitute for some fuels; And biofertilizer; Rich in nutrients and applied in agriculture. The conceptual simplicity of biodigestors does not bring light, the great complexity of chemical and physical processes. One of the main reasons for this complexity is the expressive amount of variables that must be monitored to guarantee better efficiency of these equipments. Among these variables, the values of biomass temperature, amount of gas generated, pH, residence time, among others, stand out. Aspects related to the Logistics of transport and storage of biomass to Process Control methods, plus Cultural aspects, Professional Training, Creation of public policies, Maintenance of biodigesters, are challenges in the application of biodigestion for energy generation from waste Pigs on an agroindustrial scale. The objective of this article is to analyze some factors that represent challenges to the application of biodigestion process for energy generation from swine waste on an agroindustrial scale, thus contributing to important reflection on the design and installation of biodigesters in agroindustrial activities.
Highlights
Brazil has one of the largest swineherds in the world, which generates large amounts of organic waste in the production chain. In view of this scenario, the biodigestion process presents itself as an alternative for the treatment of these wastes, because in addition to reducing the polluting potential and sanitary risks of the waste, it allows the generation of two products: biogas, which can be used as Source of renewable energy and biofertilizer that can be used as fertilizer in agriculture
This article presents the analysis of some factors that represent a challenge to the application of biodigestion process for energy generation from swine waste on an agroindustrial scale
According to (BOHRZ, 2010) most acidogenic bacteria are strict anaerobes, but about 1% of them consists of facultative bacteria, which can oxidize the organic substrate aerobically
Summary
Brazil has one of the largest swineherds in the world, which generates large amounts of organic waste in the production chain. In view of this scenario, the biodigestion process presents itself as an alternative for the treatment of these wastes, because in addition to reducing the polluting potential and sanitary risks of the waste, it allows the generation of two products: biogas, which can be used as Source of renewable energy and biofertilizer that can be used as fertilizer in agriculture. Employed in small farms, the application of the biodigestion process in agroindustry presents some difficulties. In this context, this article presents the analysis of some factors that represent a challenge to the application of biodigestion process for energy generation from swine waste on an agroindustrial scale
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