Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration

Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration

Dyes represent a class of contaminants with a high impact on aquatic ecosystems due to their toxicity. As these pollutants are difficult to degrade, studies on the treatment methods for these compounds are highly important to minimize damage to water bodies that receive these effluents. In this work, the adsorption and slow filtration processes using charcoal produced from the pyrolysis of Andropogon grass (Andropogon gayanus cv. Planaltina) were individually evaluated for removal of the methylene blue dye. The adsorption studies included the evaluation of kinetic behavior, evaluating pseudo-first-order and pseudo-second-order models and adsorption isotherms using the Langmuir, Freundlich, and Dubinin-Radushkevich models. According to the results, it was found that the adsorptive process had greater efficiency between pH 8 and 10. The pseudo-second-order model better described the adsorption kinetic behavior (R2 = 0.9722) and as for the adsorption isotherms, Freundlich's model best described the process. The maximum charcoal adsorption capacity of Andropogon grass for the removal of methylene blue was 17.63 mgg-1. In the filtration process, dye removal reached an efficiency above 99% at filtration rates of 1.5 and 2.1 m3m-2day-1.

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Main Authors: Teixeira, Cleidiane Cardoso, Pedrosa, Argemiro Lima, Carmo, Iago Aguiar Dias, Pedrosa, Marcelo Mendes, Souza, Nelson Luis Gonçalves Dias, Cavallini, Grasiele Soares
Format: Digital revista
Language:eng
Published: Instituto de Ingeniería, Universidad Nacional Autónoma de México 2022
Online Access:https://www.revistas.unam.mx/index.php/aidis/article/view/80960
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country México
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language eng
format Digital
author Teixeira, Cleidiane Cardoso
Pedrosa, Argemiro Lima
Carmo, Iago Aguiar Dias
Pedrosa, Marcelo Mendes
Souza, Nelson Luis Gonçalves Dias
Cavallini, Grasiele Soares
spellingShingle Teixeira, Cleidiane Cardoso
Pedrosa, Argemiro Lima
Carmo, Iago Aguiar Dias
Pedrosa, Marcelo Mendes
Souza, Nelson Luis Gonçalves Dias
Cavallini, Grasiele Soares
Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
author_facet Teixeira, Cleidiane Cardoso
Pedrosa, Argemiro Lima
Carmo, Iago Aguiar Dias
Pedrosa, Marcelo Mendes
Souza, Nelson Luis Gonçalves Dias
Cavallini, Grasiele Soares
author_sort Teixeira, Cleidiane Cardoso
title Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
title_short Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
title_full Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
title_fullStr Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
title_full_unstemmed Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration
title_sort biochar from andropogon grass (andropogon gayanus cv. planaltina) applications in dye removal by adsorption and slow filtration
description Dyes represent a class of contaminants with a high impact on aquatic ecosystems due to their toxicity. As these pollutants are difficult to degrade, studies on the treatment methods for these compounds are highly important to minimize damage to water bodies that receive these effluents. In this work, the adsorption and slow filtration processes using charcoal produced from the pyrolysis of Andropogon grass (Andropogon gayanus cv. Planaltina) were individually evaluated for removal of the methylene blue dye. The adsorption studies included the evaluation of kinetic behavior, evaluating pseudo-first-order and pseudo-second-order models and adsorption isotherms using the Langmuir, Freundlich, and Dubinin-Radushkevich models. According to the results, it was found that the adsorptive process had greater efficiency between pH 8 and 10. The pseudo-second-order model better described the adsorption kinetic behavior (R2 = 0.9722) and as for the adsorption isotherms, Freundlich's model best described the process. The maximum charcoal adsorption capacity of Andropogon grass for the removal of methylene blue was 17.63 mgg-1. In the filtration process, dye removal reached an efficiency above 99% at filtration rates of 1.5 and 2.1 m3m-2day-1.
publisher Instituto de Ingeniería, Universidad Nacional Autónoma de México
publishDate 2022
url https://www.revistas.unam.mx/index.php/aidis/article/view/80960
work_keys_str_mv AT teixeiracleidianecardoso biocharfromandropogongrassandropogongayanuscvplanaltinaapplicationsindyeremovalbyadsorptionandslowfiltration
AT pedrosaargemirolima biocharfromandropogongrassandropogongayanuscvplanaltinaapplicationsindyeremovalbyadsorptionandslowfiltration
AT carmoiagoaguiardias biocharfromandropogongrassandropogongayanuscvplanaltinaapplicationsindyeremovalbyadsorptionandslowfiltration
AT pedrosamarcelomendes biocharfromandropogongrassandropogongayanuscvplanaltinaapplicationsindyeremovalbyadsorptionandslowfiltration
AT souzanelsonluisgoncalvesdias biocharfromandropogongrassandropogongayanuscvplanaltinaapplicationsindyeremovalbyadsorptionandslowfiltration
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spelling rev-aidis-mx-article-809602022-12-06T18:51:46Z Biochar from Andropogon grass (Andropogon gayanus cv. Planaltina) applications in dye removal by adsorption and slow filtration BIOCHAR FROM ANDROPOGON GRASS (Andropogon gayanus cv. Planaltina) APPLICATIONS IN DYE REMOVAL BY ADSORPTION AND SLOW FILTRATION Teixeira, Cleidiane Cardoso Pedrosa, Argemiro Lima Carmo, Iago Aguiar Dias Pedrosa, Marcelo Mendes Souza, Nelson Luis Gonçalves Dias Cavallini, Grasiele Soares Biomaterial Bioadsorbent Dye Filtration Adsorption Biomaterial Bioadsorbent Dye Filtration Adsorption Biomaterial Bioadsorbent Dye Filtration Adsorption Dyes represent a class of contaminants with a high impact on aquatic ecosystems due to their toxicity. As these pollutants are difficult to degrade, studies on the treatment methods for these compounds are highly important to minimize damage to water bodies that receive these effluents. In this work, the adsorption and slow filtration processes using charcoal produced from the pyrolysis of Andropogon grass (Andropogon gayanus cv. Planaltina) were individually evaluated for removal of the methylene blue dye. The adsorption studies included the evaluation of kinetic behavior, evaluating pseudo-first-order and pseudo-second-order models and adsorption isotherms using the Langmuir, Freundlich, and Dubinin-Radushkevich models. According to the results, it was found that the adsorptive process had greater efficiency between pH 8 and 10. The pseudo-second-order model better described the adsorption kinetic behavior (R2 = 0.9722) and as for the adsorption isotherms, Freundlich's model best described the process. The maximum charcoal adsorption capacity of Andropogon grass for the removal of methylene blue was 17.63 mgg-1. In the filtration process, dye removal reached an efficiency above 99% at filtration rates of 1.5 and 2.1 m3m-2day-1. Dyes represent a class of contaminants with a high impact on aquatic ecosystems due to their toxicity. As these pollutants are difficult to degrade, studies on the treatment methods for these compounds are highly important to minimize damage to water bodies that receive these effluents. In this work, the adsorption and slow filtration processes using charcoal produced from the pyrolysis of Andropogon grass (Andropogon gayanus cv. Planaltina) were individually evaluated for removal of the methylene blue dye. The adsorption studies included the evaluation of kinetic behavior, evaluating pseudo-first-order and pseudo-second-order models and adsorption isotherms using the Langmuir, Freundlich, and Dubinin-Radushkevich models. According to the results, it was found that the adsorptive process had greater efficiency between pH 8 and 10. The pseudo-second-order model better described the adsorption kinetic behavior (R2 = 0.9722) and as for the adsorption isotherms, Freundlich's model best described the process. The maximum charcoal adsorption capacity of Andropogon grass for the removal of methylene blue was 17.63 mgg-1. In the filtration process, dye removal reached an efficiency above 99% at filtration rates of 1.5 and 2.1 m3m-2day-1. Dyes represent a class of contaminants with a high impact on aquatic ecosystems due to their toxicity. As these pollutants are difficult to degrade, studies on the treatment methods for these compounds are highly important to minimize damage to water bodies that receive these effluents. In this work, the adsorption and slow filtration processes using charcoal produced from the pyrolysis of Andropogon grass (Andropogon gayanus cv. Planaltina) were individually evaluated for removal of the methylene blue dye. The adsorption studies included the evaluation of kinetic behavior, evaluating pseudo-first-order and pseudo-second-order models and adsorption isotherms using the Langmuir, Freundlich, and Dubinin-Radushkevich models. According to the results, it was found that the adsorptive process had greater efficiency between pH 8 and 10. The pseudo-second-order model better described the adsorption kinetic behavior (R2 = 0.9722) and as for the adsorption isotherms, Freundlich's model best described the process. The maximum charcoal adsorption capacity of Andropogon grass for the removal of methylene blue was 17.63 mgg-1. In the filtration process, dye removal reached an efficiency above 99% at filtration rates of 1.5 and 2.1 m3m-2day-1. Instituto de Ingeniería, Universidad Nacional Autónoma de México 2022-12-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículos evaluados por pares Artículos evaluados por pares Artículos evaluados por pares application/pdf https://www.revistas.unam.mx/index.php/aidis/article/view/80960 10.22201/iingen.0718378xe.2022.15.3.80960 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1553-1569 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1553-1569 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1553-1569 0718-378X 10.22201/iingen.0718378xe.2022.15.3 eng https://www.revistas.unam.mx/index.php/aidis/article/view/80960/73899 Derechos de autor 2022 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica https://creativecommons.org/licenses/by-nc-nd/4.0

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