Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System
In the present paper, the residues of the plantain starch extraction process are proposed as an adsorbent to remove Cr (VI) in a continuous fixed bed-system, varying the temperature in 33, 40, 55, 70 y 76 °C and bed height in the range of 15.5, 30, 65, 100, 114.5 mm. The adsorbent material was char...
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| Format: | Online |
| Language: | eng spa |
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Universidad Pedagógica y Tecnológica de Colombia
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477 |
| _version_ | 1801706086152011776 |
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| author | Villabona-Ortíz, Angel Tejada-Tovar, Candelaria Ruiz-Paternina, Erika Frías-González, Jesús David Blanco-García, Gerlyn David |
| author_facet | Villabona-Ortíz, Angel Tejada-Tovar, Candelaria Ruiz-Paternina, Erika Frías-González, Jesús David Blanco-García, Gerlyn David |
| author_sort | Villabona-Ortíz, Angel |
| collection | OJS |
| description | In the present paper, the residues of the plantain starch extraction process are proposed as an adsorbent to remove Cr (VI) in a continuous fixed bed-system, varying the temperature in 33, 40, 55, 70 y 76 °C and bed height in the range of 15.5, 30, 65, 100, 114.5 mm. The adsorbent material was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and X-ray Diffraction Analysis (XRD). The Cr (VI) solution at 100 ppm had contact with the column by gravity, with a flow rate of 0.75 mL/s at the different working conditions. At the end of the process, the residual concentration of the metal was measured by UV-Vis spectroscopy using the standard method for the determination of Cr (VI) in water ASTM D1687-17. From the results, it was established that the bioadsorbent has the presence of hydroxyl, carboxyl and methyl functional groups and that the adsorption process is controlled by electrostatic interactions; the variables evaluated had a significant influence on the process because applying the RSM methodology it was observed that the optimal operating conditions are 81.49 mm of bed height and temperature of 68 ºC. Based on the behavior of the rupture curve, it was found that the bio-material has the potential to be used as a filler in an adsorption column with the purpose of remove Cr (VI). |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-10477 |
| institution | Revista Facultad de Ingeniería |
| language | eng spa |
| publishDate | 2020 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-104772022-06-15T15:57:51Z Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System Optimización del efecto de la temperatura y altura del lecho en la bioadsorción de Cr (VI) en sistema continuo Villabona-Ortíz, Angel Tejada-Tovar, Candelaria Ruiz-Paternina, Erika Frías-González, Jesús David Blanco-García, Gerlyn David bioadsorption heavy metal continuous system residual biomass bioadsorción biomasa residual metal pesado sistema continuo In the present paper, the residues of the plantain starch extraction process are proposed as an adsorbent to remove Cr (VI) in a continuous fixed bed-system, varying the temperature in 33, 40, 55, 70 y 76 °C and bed height in the range of 15.5, 30, 65, 100, 114.5 mm. The adsorbent material was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and X-ray Diffraction Analysis (XRD). The Cr (VI) solution at 100 ppm had contact with the column by gravity, with a flow rate of 0.75 mL/s at the different working conditions. At the end of the process, the residual concentration of the metal was measured by UV-Vis spectroscopy using the standard method for the determination of Cr (VI) in water ASTM D1687-17. From the results, it was established that the bioadsorbent has the presence of hydroxyl, carboxyl and methyl functional groups and that the adsorption process is controlled by electrostatic interactions; the variables evaluated had a significant influence on the process because applying the RSM methodology it was observed that the optimal operating conditions are 81.49 mm of bed height and temperature of 68 ºC. Based on the behavior of the rupture curve, it was found that the bio-material has the potential to be used as a filler in an adsorption column with the purpose of remove Cr (VI). En el presente artículo se propone como adsorbentes residuos del proceso de extracción de almidón de plátano para remover Cr (VI) en un sistema continuo de lecho fijo, variando la temperatura 33, 40, 55, 70 y 76 °C y altura de lecho en el rango de 15.5, 30, 65, 100, 114.5 mm. El material adsorbente fue caracterizado mediante espectroscopia infrarroja por transformada de Fourier (FTIR), Microscopia Electrónica de Barrido (SEM) y análisis por difracción de rayos X (DRX). La solución de Cr (VI) a 100 ppm tuvo contacto con la columna por gravedad, con un caudal de 0.75 mL/s a las diferentes condiciones trabajadas. Al final del proceso la concentración residual del metal fue medida mediante espectroscopia UV-Vis usando el método estándar para la determinación de Cr (VI) en agua ASTM D1687-17. De los resultados, se estableció que el bioadsorbente cuenta con la presencia de grupos funcionales hidroxilo, carboxilo y metilo, y que el proceso de adsorción está controlado por interacciones electrostáticas; las variables evaluadas incidieron de forma significativa en el proceso, estableciendo al aplicar la metodología RSM que las condiciones óptimas de operación son 81.49 mm de altura de lecho y temperatura de 68 ºC. Del comportamiento de la curva de ruptura se encontró que el bio-material tiene potencial para ser usado como relleno en una columna de adsorción con el fin de remover Cr (VI). Universidad Pedagógica y Tecnológica de Colombia 2020-05-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf application/xml https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477 10.19053/01211129.v29.n54.2020.10477 Revista Facultad de Ingeniería; Vol. 29 No. 54 (2020): Continuos Publication; e10477 Revista Facultad de Ingeniería; Vol. 29 Núm. 54 (2020): Publicación Continua; e10477 2357-5328 0121-1129 eng spa https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477/9279 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477/9280 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477/9504 Copyright (c) 2020 Angel Villabona-Ortíz, M.Sc., Candelaria Tejada-Tovar, M.Sc., Erika Ruiz-Paternina, Jesús David Frías-González |
| spellingShingle | bioadsorption heavy metal continuous system residual biomass bioadsorción biomasa residual metal pesado sistema continuo Villabona-Ortíz, Angel Tejada-Tovar, Candelaria Ruiz-Paternina, Erika Frías-González, Jesús David Blanco-García, Gerlyn David Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title | Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title_alt | Optimización del efecto de la temperatura y altura del lecho en la bioadsorción de Cr (VI) en sistema continuo |
| title_full | Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title_fullStr | Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title_full_unstemmed | Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title_short | Optimization of the Effect of Temperature and Bed Height on Cr (VI) Bioadsorption in Continuous System |
| title_sort | optimization of the effect of temperature and bed height on cr vi bioadsorption in continuous system |
| topic | bioadsorption heavy metal continuous system residual biomass bioadsorción biomasa residual metal pesado sistema continuo |
| topic_facet | bioadsorption heavy metal continuous system residual biomass bioadsorción biomasa residual metal pesado sistema continuo |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10477 |
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