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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2009.tde-23032010-101309
Document
Author
Full name
Rafaela Faciola Coelho de Souza
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Pejon, Osni José (President)
Lorandi, Reinaldo
Vieira, Eny Maria
Title in Portuguese
Migração de poluentes inorgânicos em liners compostos
Keywords in Portuguese
Ensaios de coluna
Geocomposto bentonítico
Liner composto
Solo compactado
Transporte de poluentes
Abstract in Portuguese
Neste trabalho analisa-se o comportamento de duas configurações de liners através da percolação com solução de 'K'CL'. São utilizadas amostras de solo compactadas, do interior do estado de São Paulo, provenientes da Formação Corumbataí, combinadas a um geocomposto bentonítico (GCL) de fabricação nacional. São utilizados ensaios em coluna de percolação em dois corpos-de-prova, nas configurações: solo compactado acima do GCL e solo compactado abaixo do GCL. Esses ensaios permitiram a determinação da condutividade hidráulica e dos parâmetros de transporte dos materiais estudados. Dessa forma, compara-se o comportamento desses materiais combinados com os resultados obtidos por Musso (2008), que adotou a configuração independente. Após o início da percolação com solução 'K'CL' a condutividade hidráulica ('K') das duas configurações apresentou comportamento crescente. No entanto, este aumento no 'K' não afetou o desempenho hidráulico dos materiais, e a condutividade hidráulica mostrou-se com valores da ordem de '10 POT.-11' m/s. O fator de retardamento da configuração na qual o GCL encontra-se acima da camada de solo compactado se mostrou maior com relação à outra configuração analisada. No geral, considerou-se que esta configuração apresentou melhor desempenho como liner composto. Na comparação dos resultados obtidos nesta pesquisa com os apresentados por Musso (op. cit.) a condutividade hidráulica não diferiu, e as configurações de liner compostos apresentaram maiores fatores de retardamento do que o liner do solo compactado isoladamente.
Title in English
Migration of pollutant inorganic through composite liners
Keywords in English
Colum test
Compacted soil
Composite liners
Geosynthetic clay liner (GCL)
Transport of pollutant
Abstract in English
This research analyzes the behavior of two sets of liners subjected to the percolation of 'K'CL' solution. Samples of compacted soil from Corumbataí Formation, combined with a geosynthetic clay liner (GCL) of brazilian manufacture were used. Column percolation tests were used in two specimens, in the settings: compacted soil above the GCL and compacted soil below the GCL. These tests allowed the determination of hydraulic conductivity and transport parameters of the materials under study. Thus, the behavior of these composite liners was compared with the results obtained by Musso (2008), which tested the independent configuration. After the start of percolation of the 'K'CL' solution the hydraulic conductivity ('K') of the two settings showed an increase. However, this increase in 'K' did not affect the hydraulic performance of materials, and the hydraulic conductivity was observed with values of about '10 POT.-11' m/s. The retardation factor of the configuration in which the GCL is above the layer of compacted soil was larger in relation to the other configuration analyzed. Overall, it was considered that this configuration showed better performance as composite liner. Comparing the results with those presented by Musso (2008), the hydraulic conductivity didn't differ, and the composite liners had higher retardation factors than the liner of compacted soil alone.
 
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dissertacao.pdf (2.52 Mbytes)
Publishing Date
2010-04-08
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • PEJON, O. J., et al. Characteristics of compacted clay liners to environmental protection. In 11th Congress of the International Association for Engineering Geology and the Environment, Auckland, 2010. 11th Congress of the International Association for Engineering Geology and the Environment.London : CRC Press/Balkema, 2010.
  • Souza, R. F. C, e PEJON, O. J. MIGRAÇÃO DE POLUENTES INORGÂNICOS EM LINERS COMPOSTOS. In 12 Congresso Nacional de Geotecnia, Guimarães - Portugal, 2010. Anais do 12 Congresso Nacional de Geotecnia.Lisboa : Sociedade Portuguesa de Geotecnia, 2010.
All rights of the thesis/dissertation are from the authors
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