Pig farming activity has an important role in the Brazilian economy and generates effluents with a high polluting potential. The covered lagoon biodigester is a simple and suitable alternative for the treatment of swine manure. This work aimed to propose improvements to the pig effluent treatment system composed by covered lagoon biodigesters. Therefore, a survey of a typical plant configuration of pig effluent treatment was accomplished and alternatives were suggested in order to get a greater energy sustainability in farms through resource recovery. The proposed interventions were based on studies of scientific papers, technical equipment manuals, technical research and consultation with professionals of the field. Th e op timization of the systems operation considers some criteria, such as: (i) need for solids removal; (ii) organic loading; (iii) operation temperature; (iv) effluent recirculation; and (v) biogas energy recovery. Firstly, a typical scenario was identified without any improvements, in which the biogas is sent to flares without energy recovery. Subsequently, systems improvement insights were proposed, mainly regarding effluent heating through a solar heating system or by recovering the thermal energy from biogas and biogas recovering. The treatment optimization would increase the efficiency of organic matter re moval and bi ogas production, as well as el ectric energy production and reduction in greenhouse gases emissions. The use of tools such as Life Cycle Analysis (LCA) can favor decision making and comparing proposed alternatives.
O presente estudo aborda a temática da otimização de carga em busca da redução dos custos do frete, tendo em vista um projeto que pretende facilitar o trabalho de transporte dos produtos. O estudo se justifica pela relevância do tema na atualidade, quando as empresas buscam seu espaço no mercado competitivo e querem a potencialização de seus resultados. O objetivo geral da pesquisa é analisar o processo de otimização de carga como recurso para reduzir os valores do frete no ambiente alvo desta pesquisa, que tem como objetivos específicos: discutir a logística e o seu papel na atualidade das organizações; abordar a importância das tecnologias na otimização de resultados empresariais; ressaltar o volume das cargas como fator determinante para redução do custo do frete, gerando maior lucratividade. A metodologia utilizada foi, inicialmente, pautada na pesquisa bibliográfica, posteriormente, no estudo de caso da empresa. Para que assim, se atingisse os resultados da pesquisa. Em acréscimo, é abordado neste estudo, os resultados da proposta de utilização de um roteirizador na otimização dos fretes e redução de custo desse processo.
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