Engenharia Ambiental

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http://repositorio.ufes.br/handle/10/17610
Programa de Pós-Graduação em Engenharia Ambiental

Centro: CT
Telefone: (27) 3335 2324 R*9510
URL do programa: http://www.ambiental.ufes.br/pos-graduacao/PPGEA

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Navegando Engenharia Ambiental por Autor "1º membro da banca"

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    Aplicação de escória siderúrgica para captura de dióxido de carbono em meio aquoso
    (Universidade Federal do Espírito Santo, 2025-11-28) Guio, Laura Loyola Marion; Co-orientador1; https://orcid.org/; http://lattes.cnpq.br/; Co-orientador2; https://orcid.org/; http://lattes.cnpq.br/; Co-orientador3; https://orcid.org/; http://lattes.cnpq.br/; Co-orientador4; ID do co-orientador4; Lattes do co-orientador4; Orientador1; https://orcid.org/; http://lattes.cnpq.br/; Orientador2; https://orcid.org/; http://lattes.cnpq.br/; https://orcid.org/; http://lattes.cnpq.br/; 1º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 2º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 3º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 4º membro da banca; http://lattes.cnpq.br/; 5º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 6º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 7º membro da banca; https://orcid.org/; http://lattes.cnpq.br/
    This study investigated the application of steel slag, a material rich in calcium and magnesium oxides, for carbon dioxide (CO₂) capture in aqueous media through carbonation. The main objective was to evaluate the technological potential of steel slag for large-scale CO₂ sequestration. The experimental methodology encompassed the slag's particle size reduction to increase its surface area, conducting water solubilization assays to quantify ion release, and performing solution carbonation experiments with CO₂ in batch mode. Characterization of the slag and precipitates by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Raman spectroscopy, and titrimetry confirmed mineralogical transformation and predominant calcite (CaCO₃) formation. Seeding procedure proved to be a more effective method for promoting precipitation compared to cooling, with seeded samples (associated with the condition "Precipitated with slag bed") achieving a practical CO₂ sequestration potential (RCO₂) of 39.7%, whereas cooling resulted in 8.40% RCO₂ and a carbonation degree of 19.10%. Although limitations such as low calcium-to-carbonate conversion and the corrosive tendency of the solution were identified, the high initial reactivity of steel slag and the purity of the formed calcite represent opportunities for its large-scale valorization. It is concluded that steel slag possesses promising potential in industrial decarbonization and the circular economy
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    Caracterização gravimétrica e comercial dos resíduos sólidos urbanos recolhidos em Postos de Entrega Voluntaria do sistema de Coleta Seletiva da Prefeitura Municipal de Vitória-ES
    (Universidade Federal do Espírito Santo, 2001-12-13) Laignier, Irene Thomé Rabello; Braga, Florindo dos Santos; 1º membro da banca
    This work aimed to characterize the dry and solid urban waste comercialized by Usina de Lixo de Vitória – ES composed of Voluntary Delivery Offices (Postos de Entrega Voluntária - PEV), implemented by the city of Vitória, capital of Espírito Santo. Fieldwork was developed along with the practical techniques of collect, transportation and a process of selection for later recovery used by the existent system, under tecno-scientific criteria. From the analysis of the results it is concluded that the waste from the PEVs of selective collect had in its composition 38% paper, 19% glass, 13%, plastic and 8% ferrousand non-ferrous metals and 22% discards and the utilization index of the recycle materials taken in the PEVs was about 77%. The acts of vandalism against PEVs are not very significative. Laterly was stimated the number of users that utilize the system of selective collect to dispose the recycle materials that they own produce. Finally was established a relationship between the locations of these collectors and their own filling in level. Because it is the first avaliation of this kind of collect, in the state of ES, hopefully that the results taken, come to contribute for a management and planning in case of expansion of the selective collect in Vitória or even in the implementation of this kind of collect in the other cities.
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    Modelo conceitual para sistemas de armazenamento de água para irrigação na agricultura familiar
    (Universidade Federal do Espírito Santo, 2023-11-30) Domínguez, Valeria Albán; Orientador1; 1º membro da banca
    abstract