Barros Neto, Eduardo Lins deNascimento, Luiz Antônio do2014-12-172012-01-162014-12-172011-02-21NASCIMENTO, Luiz Antônio do. Remediation of soils contaminated by diesel fuel using a system of washing with microemulsion. 2011. 104 f. Dissertação (Mestrado em Pesquisa e Desenvolvimento de Tecnologias Regionais) - Universidade Federal do Rio Grande do Norte, Natal, 2011.https://repositorio.ufrn.br/jspui/handle/123456789/15811The underground reservoirs of fuel retailing system represent an environmental threat, because once in bad conservation, these tanks allow fuel leakage and infiltration. For soil contaminated with fuel, such as diesel oil, the present study introduces the microemulsion systems used by the method of washing. In tests carried out in column with a sample of sandy soil artificially contaminated and previously characterized as to its void level to porosity, to permeability which is an important parameter concerning the study of the method of washing. While microemulsions were characterized for their viscosity and wettability, a variation of active matter was also done departing from the original formulation. The hydraulic diffusivity of the microemulsion was studied so as the injection of such fluid in a soil with sandy characteristics. The results of the extractions revealed the excellent performance of these systems which get to remove around 95% of diesel fuel. This proves the efficiency of the microemulsion in the process of removal of diesel fuel from the soil with the advantage of being a system easily obtainable and less aggressive to the environment when compared to organic solvents.application/pdfAcesso AbertoÓleo dieselSolo arenosoMicroemulsãoMétodo de lavagem.Diesel oilSandy soilMicroemulsionMethod of washing.masterThesisCNPQ::ENGENHARIAS::ENGENHARIA QUIMICA