Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation

Column tests using undisturbed samples of residual sandy soil from the Adamantina Formation (K) were performed to determine the sodium hydrodynamic coefficient by equilibrium and non-equilibrium methods. Analyzing the porosity and soil characteristics, as well as the breakthrough curves, it was poss...

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Main Authors: Vanessaq Almeida de Godoy, Gian Franco Napa-Garcia, Lázaro Valentin Zuquette
Format: Article
Language:English
Published: Universidade Estadual de Maringá 2019-05-01
Series:Acta Scientiarum: Technology
Subjects:
Online Access:http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/35419
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author Vanessaq Almeida de Godoy
Gian Franco Napa-Garcia
Lázaro Valentin Zuquette
author_facet Vanessaq Almeida de Godoy
Gian Franco Napa-Garcia
Lázaro Valentin Zuquette
author_sort Vanessaq Almeida de Godoy
collection DOAJ
description Column tests using undisturbed samples of residual sandy soil from the Adamantina Formation (K) were performed to determine the sodium hydrodynamic coefficient by equilibrium and non-equilibrium methods. Analyzing the porosity and soil characteristics, as well as the breakthrough curves, it was possible to note a typical non-equilibrium transport behavior, related to the soil dual-porosity, particularly at early and late time behavior in the breakthrough curve tails. The experimental data were best fitted to the non-equilibrium method than to the equilibrium one, and the sum of the square errors was up to five-fold lower. The conceptual model analysis of the methods led to observations on the limitations of each method and a careful analysis of the obtained values, which are also related to the soil characteristics.
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spelling doaj.art-24239e9e61ba4933850f02b52ad98ce22022-12-22T02:45:04ZengUniversidade Estadual de MaringáActa Scientiarum: Technology1807-86642019-05-01411e35419e3541910.4025/actascitechnol.v41i1.3541918999Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina FormationVanessaq Almeida de Godoy0Gian Franco Napa-Garcia1Lázaro Valentin Zuquette2Universidade de São Paulo / Universitat Politècnica de ValènciaInstituto Tecnológico ValeUniversidade de São PauloColumn tests using undisturbed samples of residual sandy soil from the Adamantina Formation (K) were performed to determine the sodium hydrodynamic coefficient by equilibrium and non-equilibrium methods. Analyzing the porosity and soil characteristics, as well as the breakthrough curves, it was possible to note a typical non-equilibrium transport behavior, related to the soil dual-porosity, particularly at early and late time behavior in the breakthrough curve tails. The experimental data were best fitted to the non-equilibrium method than to the equilibrium one, and the sum of the square errors was up to five-fold lower. The conceptual model analysis of the methods led to observations on the limitations of each method and a careful analysis of the obtained values, which are also related to the soil characteristics.http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/35419dual-porositysoil physical characteristicsconceptual model.
spellingShingle Vanessaq Almeida de Godoy
Gian Franco Napa-Garcia
Lázaro Valentin Zuquette
Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
Acta Scientiarum: Technology
dual-porosity
soil physical characteristics
conceptual model.
title Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
title_full Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
title_fullStr Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
title_full_unstemmed Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
title_short Hydrodynamic dispersion of sodium by equilibrium and non-equilibrium methods through undisturbed sandy soil columns from the Adamantina Formation
title_sort hydrodynamic dispersion of sodium by equilibrium and non equilibrium methods through undisturbed sandy soil columns from the adamantina formation
topic dual-porosity
soil physical characteristics
conceptual model.
url http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/35419
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