Dissertação Mestrado Profissional em Tecnologias Ambientais

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https://repositorio.ifal.edu.br/handle/123456789/582

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Navegando Dissertação Mestrado Profissional em Tecnologias Ambientais por Orientador "Lima, André Suêldo Tavares de"

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    Compostagem de resíduos de polpas de frutas : compostagem, uso na produção de mudas e disseminação de conhecimentos
    (2022) Soares, Alessandra Cristina de Lima; Vasconcelos, Erika Socorro Alves Graciano de; Lima, André Suêldo Tavares de; Lima, André Suêldo Tavares de; Vasconcelos, Erika Socorro Alves Graciano de; Gomes, Tâmara Cláudia de Araújo; Barbosa, Tiago Jorge de Araujo
    The fruit pulp manufacturing process is a generator of organic waste, containing peels, seeds and bagasse. At the Cooperative of Small Organized Farmers (COOPEAGRO), located in the Municipality of Maragogi-AL, the pulp manufacturing process produces about 25 tons of this waste per month, which can be used to produce organic compounds. In this way, the objective of this work is to develop organic compounds from residues of fruit pulp agroindustry and evaluate them as substrate for the production of lettuce seedlings. The chemical characterization of the residues generated by the agroindustry was carried out for the purpose of sizing possible compost piles, such as the proportion of different residues to be mixed. The residues tested were pineapple, soursop, passion fruit, guava and acerola. To obtain the compounds, a hexagonal compost was used. After 120 days, the results showed that the monitored parameters followed what is indicated in the literature. The compounds were tested for the production of lettuce seedlings, evaluating seedling height, number of leaves, root length and dry mass of root area and root ball stability. The experimental design used was completely randomized, with 4 treatments (T1 = commercial compost; T2 = passion fruit and acerola; T3 = passion fruit and guava; T4 = passion fruit and soursop) and 5 replications. To represent the 16 experimental units, 8 trays of 128 cells were used, divided in half. The treatment of compost with residues of passion fruit and acerola, stood out from the others, presenting a higher average of the aerial part and root system. Chromatography of the passion fruit and acerola compound showed the best results. The technological products generated will be a patent of the organic compounds obtained, an article submitted to the Brazilian Journal of Agroecology and training at different levels.
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    Lodo de esgoto como alternativa de fertilização agrícola para o Município de Igaci - AL
    (Instituto Federal de Educação Ciência e Tecnologia de Alagoas, 2021-11-25) Lins, Thomás Correia; Libos, Michely Inêz Prado de Camargo; http://lattes.cnpq.br/6727058680980510; Lima, André Suêldo Tavares de; http://lattes.cnpq.br/6019670165528345; Santos, Alexandre Nascimento dos; http://lattes.cnpq.br/8747310654014392; Vasconcelos, Erika Socorro Alves Graciano de; http://lattes.cnpq.br/7181469410230835
    In Brazil, sewage sludge is generally sent to the landfill, compromising the useful life of the landfills, as it occupies the place of other solid domestic waste. Considering the nutrient richness of the sludge, and its agricultural recycling as a technical, economic and environmentally safe alternative, the present work developed a technique for agricultural recycling of sewage sludge generated by the sewage treatment plant in the municipality of Igaci, chosen for having its sewage treatment plant built recently (August/2018). The methodological procedures were divided into two stages, where the first is carried out through the Geographic Information System (GIS), in which maps were built showing the areas of the municipality where sewage sludge can be applied for agricultural purposes. Finally, the present work sought to calculate the necessary sludge dosage in agricultural areas, for the main crops used in the municipality. With this, it is intended to carry out the recycling of sewage sludge in the municipality of Igaci, analyzing the places where they must be inserted, and the necessary dosage of biosolids for each type of crop that can be used in agricultural areas. This study enables a good management of the sludge from the sewage treatment plant in the municipality of Igaci, favoring soil recovery and the optimization of agriculture.