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	Provedor de dados REA (3) Infoteca-e (1) BABT (1) Autor ENCINAS, O. C. (1) Gonçalves,Adriano D. M. A. (1) HASHIMOTO, C. V. (1) JOSÉ,JEFFERSON V. (1) Kamogawa,Marcos Y. (1) Leal,Bruno De P. (1) MIRANDA,JARBAS H. DE (1) Martins,Ivani P. (1) Miranda,Jarbas H. (1) OLIVEIRA,LUCIANO A. (1) Rossi,Paulo (1) SILVA,LÍVIA P. DA (1) Sabadin,José F. G. (1) Santana,José Carlos Curvelo (1) Severo Jr.,João Batista (1) Silva,Ascânio V. (1) Souza,Roberto Rodrigues de (1) TAVARES, S. R. de L. (1) TEIXEIRA, W. G. (1) Tambourgi,Elias Basile (1) Mais... Palavra-chave Breakthrough curves (5) Leaching (2) Miscible displacement (2) Adubação (1) Amberlite IRA 410 ion-exchange resin (1) Análise do Solo (1) BSA (1) Computational modeling (1) Distribution residence time study (1) Environmental contamination (1) Fertilizers (1) Latossolo Amarelo (1) Lixiviação (1) Potássio (1) Protein adsorption (1) Richardson-Zack coefficient (1) STANMOD (1) Solute dynamics (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) (1) Ano 2021 (1) 2018 (1) 2015 (1) 2009 (1) 2008 (1) País Brazil (5) Idioma Inglês (4) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última A study of ion-exchange chromatography in an expanded bed for bovine albumin recovery BABT Severo Jr.,João Batista; Souza,Roberto Rodrigues de; Santana,José Carlos Curvelo; Tambourgi,Elias Basile. In the present work, the effect of bed expansion on BSA adsorption on Amberlite IRA 410 ion-exchange resin was studied. The hydrodynamic behavior of an expanded bed adsorption column on effects of the biomolecules and salt addition and temperature were studied to optimize the conditions for BSA recovery on ion-exchange resin. Residence time distribution showed that HEPT, axial dispersion and the Pecletl number increased with temperature and bed height, bed voidage and linear velocity. The binding capacity of the resin increased with bed height. The Amberlite IRA 410 ion-exchange showed an affinity for BSA with a recovery yield of 78.36 % of total protein. Tipo: Info:eu-repo/semantics/article Palavras-chave: BSA; Protein adsorption; Breakthrough curves; Amberlite IRA 410 ion-exchange resin; Distribution residence time study; Richardson-Zack coefficient. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200021 Determinação dos fatores de retardamento e dispersão de potássio em Latossolo Amarelo de textura muito argilosa. Infoteca-e HASHIMOTO, C. V.; TEIXEIRA, W. G.; ENCINAS, O. C.; TAVARES, S. R. de L.. O conhecimento da dinâmica dos nutrientes adicionados no solo via adubação é crucial para o adequado manejo da nutrição das plantas, bem como para avaliar riscos de contaminação do solo e das águas subterrâneas com a aplicação de efluentes. O estudo teve como objetivo avaliar a dinâmica do deslocamento de íons potássicos em amostras de um Latossolo Amarelo muito argiloso, caulinítico, que é a classe de solo dominante na Amazônia Central. Foram determinados os parâmetros de transporte de solutos em amostras de solos de uma camada superficial (0-20 cm) e de uma camada subsuperficial (20-40 cm), por meio de ensaios de retardo (breakthrough curves - BTC). As equações apresentaram um bom ajuste nos pontos da curva de distribuição de efluentes dos ensaios... Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Breakthrough curves; STANMOD; Análise do Solo; Latossolo Amarelo; Potássio; Lixiviação; Adubação; Leaching; Fertilizers. Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135104 Effect of companion ion on nitrate displacement through transport parameters analysis REA SILVA,LÍVIA P. DA; MIRANDA,JARBAS H. DE; OLIVEIRA,LUCIANO A.; JOSÉ,JEFFERSON V.. Nitrate is the main form of nitrogen associated with water contamination; the high mobility of this species in soil justifies the concern regarding nitrogen management in agricultural soils. Therefore, the objective of this research was to assess the effect of companion cation on nitrate displacement, by analyzing nitrate transport parameters through Breakthrough Curves (BTCs) and their settings made by numerical model (STANMOD). The experiment was carried out in the Soil and Water Quality Laboratory of the Department of Biosystems Engineering, "Luiz de Queiroz" College of Agriculture in Piracicaba (SP), Brazil. It was performed using saturated soil columns in steady-state flow condition, in which two different sources of inorganic nitrate Ca(NO3)2 and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Breakthrough curves; Solute dynamics; Leaching. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000100051 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 Registros recuperados: 5 Primeira ... 1 ... Última

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