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	Provedor de dados REA (2) Rev. Bras. Ciênc. Solo (1) Autor Correa,Marcus Metri (1) Gonçalves,Adriano D. M. A. (1) Kamogawa,Marcos Y. (1) Leal,Bruno De P. (1) Martins,Ivani P. (1) Miranda,Jarbas H. (1) Miranda,Jarbas Honorio de (1) Oliveira,Luciano Alves de (1) Rossi,Paulo (1) Sabadin,José F. G. (1) Silva,Ascânio V. (1) Silva,Lívia Previatello da (1) Thebaldi,Michael S. (1) Vilela,Nathane M. S. (1) van Lier,Quirijn de Jong (1) Mais... Palavra-chave Miscible displacement (3) Breakthrough curves (2) Computational modeling (1) Environmental contamination (1) Leaching (1) Retention (1) Sampling (1) Solute transport (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2018 (1) 2016 (1) 2008 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Temperature effect in potassium and nitrate ions in soil transport REA Gonçalves,Adriano D. M. A.; Miranda,Jarbas H.; Rossi,Paulo; Sabadin,José F. G.; Kamogawa,Marcos Y.. When doing researches on solute dynamics in porous medium, the knowledge of medium characteristics and percolating liquids, as well as of external factors is very important. An important external factor is temperature and, in this sense, our purpose was determining potassium and nitrate transport parameters for different values of temperature, in miscible displacement experiments. Evaluated parameters were retardation factor (R), diffusion/dispersion coefficient (D) and dispersivity, at ambient temperature (25 up to 28 ºC), 40 ºC and 50 ºC. Salts used were potassium nitrate and potassium chlorate, prepared in a solution made up of 5 ppm nitrate and 2.000 ppm potassium, with Red-Yellow Latosol porous medium. Temperature exhibited a positive influence upon... Tipo: Info:eu-repo/semantics/article Palavras-chave: Breakthrough curves; Miscible displacement; Computational modeling. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162008000300005 TRANSPORT PARAMETERS OF POTASSIUM FROM DIFFERENT SOURCES IN SOIL COLUMNS REA Vilela,Nathane M. S.; Thebaldi,Michael S.; Leal,Bruno De P.; Silva,Ascânio V.; Martins,Ivani P.. ABSTRACT This study aimed to determine some transport parameters of potassium in soil columns by miscible displacement of effluent from a Sewage Treatment Plant (STP). This effluent was collected at different stages of treatment, and potassium chloride solutions were prepared with the same K pulse concentration as the effluent. They were used to conduct a miscible displacement experiment of potassium in soil columns of dystrophic Red Latosol. Both types of solutions contained concentrations of 30 and 32 mg L-1 of potassium. STANMOD software was used to obtain the retardation factor (R) and the Peclet number (Pe) from pore volume and relative concentration. Both retardation factor and solid-water partition coefficient of the soil showed significant results... Tipo: Info:eu-repo/semantics/article Palavras-chave: Breakthrough curves; Environmental contamination; Miscible displacement. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000100135 Retention and Solute Transport Properties in Disturbed and Undisturbed Soil Samples Rev. Bras. Ciênc. Solo Silva,Lívia Previatello da; van Lier,Quirijn de Jong; Correa,Marcus Metri; Miranda,Jarbas Honorio de; Oliveira,Luciano Alves de. ABSTRACT Solute transport parameters can be determined in miscible displacement experiments, usually performed in columns with disturbed (sieved) soil samples. Experiments with undisturbed samples are uncommon, due to the difficulty of taking undisturbed samples at the size required for these experiments. Structural alteration of the disturbed material implies modifications in the pore geometry that determines hydraulic properties, including hydraulic conductivity and retention and properties related to miscible displacement. An existing model for prediction of breakthrough curves based on retention properties was tested using material from a medium-textured Ferralsol, and alterations caused by sample disturbance were investigated. Soil water retention... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sampling; Retention; Miscible displacement; Solute transport; Leaching. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100421 Registros recuperados: 3 Primeira ... 1 ... Última

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