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Navegando por Assunto "Compostagem"

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    Estudo da viabilidade de implantação de técnica de reaproveitamento dos resíduos do frigorífico Frigopeixe em Tefé-AM
    (Universidade Federal do Pará, 2019-05-06) CAXEIXA, Luiz Augusto Reis; CUNHA, Edinaldo José de Sousa; http://lattes.cnpq.br/8714515962963079
    The large amount of organic solid waste from the fishing industry is a serious socio-environmental problem. The treatment of organic solid wastes, such as the residues of the fish slaughterhouses, has a great reutilization potential, being able to generate by-products that attend both environmental and economic aspects. The aim was to study and propose ways to treat the fish processing residues from Frigopeixe Frigorífico, aiming to provide a sustainable destination for that material in order to achieve the goal of decrease to zero the disposal of those residues in the sanitary landfill of the city of Tefé, without burden the company. In particular, three techniques of reuse of fish waste were studied: composting, silage and fish meal. The study took into account the company production per harvest of 969 tons, on average, and waste generated quantity of 171 tons, on average, the extent of the technique in the reuse of the waste, the cost of implantation, period of storage, maintenance and return on investment, as well as the socio-environmental gain with that implementation. Each of the techniques studied presented great potentials of reuse of the residues, but the production of fish meal proved to be very expensive in its installation and maintenance, becoming, initially, not feasible. The other two techniques have a more adequate profile with the production and investment dimensions of the company, being able to be made a joint deployment, being a technique complementary to the other in the reuse of waste, composting and silage.
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    Estudo gravimétrico de resíduos dos grandes geradores supermercadista; atacadista, hotelaria e restaurantes na região metropolitana de Belém - PA
    (Universidade Federal do Pará, 2023-02-27) FRANÇA NETO, Raymundo da Costa; NORAT, Maria de Valdivia Costa; http://lattes.cnpq.br/1628995172582591
    This study addresses physical characteristics of gravimetry, presenting as a context the characteristic condition of waste for better use of recyclable waste for recycling, with organic solid waste digestible through technologies that can be better used. The main objective of the study is to identify, through gravimetric data, the possible technical relevance for the waste generated by large generators in the metropolitan region of Belém, for a better use of waste. In this way, it will have a contribution to increase the useful life of the sanitary landfill located in the area under study. The importance of gravimetric data for the survival of sanitary landfills is because it is an important tool in terms of the Solid Waste Management Plan, allowing the analysis of quantitative and qualitative data from the gravimetry of large generators, allowing to present the difficulties and possibilities to implement a disposal system with better use of waste and to identify which are the major generators of solid waste in the current situation in the Metropolitan Region of Belém. The development of this research was divided by primary and secondary data; data analysis for the purpose of results regarding the study of gravimetry, descriptive statistics were analyzed; gravimetric analysis by graph; analysis of the gravimetric composition of RS through boxplot graphs; KruskallWallis test – GG; and literary study for foundation. The results of the survey show that the amount of digestible organic matter, as the highest power in the waste, is around 80.9%, confirming that the organic waste from large generators is completely avoidable for disposal in landfills, and should be directed to treatments with technology sustainable production of energy or compounds, leading to relevant reflections on waste to propose composting techniques, generating waste inputs for agriculture.
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