2019-11-212019-11-212019-09-13VIEGAS, Bruno Marques. Proposta de modelo matemático e estimativa de parâmetros cinéticos da lixiviação da lama vermelha através de Técnicas Bayesianas. Orientador: Emanuel Negrão Macêdo. 2019. 284 f. Tese (Doutorado em Engenharia de Recursos Naturais da Amazônia) - Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2019. Disponível em: http://repositorio.ufpa.br:8080/jspui/handle/2011/12081. Acesso em:.https://repositorio.ufpa.br/handle/2011/12081Red mud, a residue from the alumina production industry, is obtained during bauxite processing through the Bayer process. Because it is generated in large quantities and has many oxides of industrial interest, the kinetics of red mud leaching have become the object of study by many researchers. This work proposes the mathematical model and the estimation of the kinetic parameters of the leaching of the red mud, using the Markov Chain Monte Carlo method with the Metropolis-Hastings algorithm. To estimate the parameters, actual data were used, obtained from different experiments involving red mud leaching with sulfuric acid. Based on the shrinking core model, a mathematical model was proposed, in terms of a system of coupled differential equations, aiming to represent the kinetics of the waste leaching. The proposed mathematical model was validated by reproducing experimental data and the use of Bayesian statistics was adequate.Acesso AbertoLama vermelhaLixiviaçãoModelo matemáticoEstimativa de parâmetros cinéticosMétodo de Monte Carlo via Cadeia de MarkovRed mudLeachingMathematical modelEstimation of kinetic parametersMarkov Chain Monte Carlo MethodTeseCNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::SANEAMENTO BASICO::RESIDUOS SOLIDOS, DOMESTICOS E INDUSTRIAISENGENHARIA DE PROCESSOSUSO E TRANSFORMAÇÃO DE RECURSOS NATURAIS