ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS
ABSTRACT Activated carbon (AC) is an essential product for the removal of environmental contaminants, but the high production costs limit its use. In this work, AC was produced from bamboo through simultaneous direct physical-chemical activation (by using phosphoric acid and water steam), at 500 ºC for 1 hour, to evaluate its adsorption effectiveness for methylene blue dye (MB). Adsorption kinetic and equilibrium studies at batch system were realized at room temperature (to evaluate the adsorption influence of the MB dye over the produced AC) and the Langmuir and Freundlich isotherms systems were selected for understanding the adsorption process. The produced AC showed a relatively high value of surface area equal to 1354.42 m².g-1. The required contact time for the MB to reach equilibrium was 12 hours. The adsorption performance was better delineated by the Langmuir isotherm, which maximum adsorption capacity was of 374.75 mg.g-1. In addition, the RL dimensionless factor reveled the favorable nature of the adsorption process in the used conditions. The results obtained in this study recommend the use of the produced AC from bamboo in the treatment of the water contaminated by the MB dye, foremost in higher concentrations than limits admitted by the legislation. Finally, complementary researches must be conducted to improve, even more, the quality of the produced material.
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Universidade Federal de Santa Maria
2018
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oai:scielo:S1980-509820180003011792018-11-14ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONSSantana,Gregório MateusLelis,Roberto Carlos CostaPaes,Juarez BenignoMorais,Rayssa de MedeirosLopes,Cláudio RochaLima,Carlos Roberto de physical-chemical activation adsorption water treatment ABSTRACT Activated carbon (AC) is an essential product for the removal of environmental contaminants, but the high production costs limit its use. In this work, AC was produced from bamboo through simultaneous direct physical-chemical activation (by using phosphoric acid and water steam), at 500 ºC for 1 hour, to evaluate its adsorption effectiveness for methylene blue dye (MB). Adsorption kinetic and equilibrium studies at batch system were realized at room temperature (to evaluate the adsorption influence of the MB dye over the produced AC) and the Langmuir and Freundlich isotherms systems were selected for understanding the adsorption process. The produced AC showed a relatively high value of surface area equal to 1354.42 m².g-1. The required contact time for the MB to reach equilibrium was 12 hours. The adsorption performance was better delineated by the Langmuir isotherm, which maximum adsorption capacity was of 374.75 mg.g-1. In addition, the RL dimensionless factor reveled the favorable nature of the adsorption process in the used conditions. The results obtained in this study recommend the use of the produced AC from bamboo in the treatment of the water contaminated by the MB dye, foremost in higher concentrations than limits admitted by the legislation. Finally, complementary researches must be conducted to improve, even more, the quality of the produced material.info:eu-repo/semantics/openAccessUniversidade Federal de Santa MariaCiência Florestal v.28 n.3 20182018-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-50982018000301179en10.5902/1980509833395 |
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Santana,Gregório Mateus Lelis,Roberto Carlos Costa Paes,Juarez Benigno Morais,Rayssa de Medeiros Lopes,Cláudio Rocha Lima,Carlos Roberto de |
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Santana,Gregório Mateus Lelis,Roberto Carlos Costa Paes,Juarez Benigno Morais,Rayssa de Medeiros Lopes,Cláudio Rocha Lima,Carlos Roberto de ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| author_facet |
Santana,Gregório Mateus Lelis,Roberto Carlos Costa Paes,Juarez Benigno Morais,Rayssa de Medeiros Lopes,Cláudio Rocha Lima,Carlos Roberto de |
| author_sort |
Santana,Gregório Mateus |
| title |
ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| title_short |
ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| title_full |
ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| title_fullStr |
ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| title_full_unstemmed |
ACTIVATED CARBON FROM BAMBOO (Bambusa vulgaris) FOR METHYLENE BLUE REMOVAL: PREDICTION TO THE ENVIRONMENT APPLICATIONS |
| title_sort |
activated carbon from bamboo (bambusa vulgaris) for methylene blue removal: prediction to the environment applications |
| description |
ABSTRACT Activated carbon (AC) is an essential product for the removal of environmental contaminants, but the high production costs limit its use. In this work, AC was produced from bamboo through simultaneous direct physical-chemical activation (by using phosphoric acid and water steam), at 500 ºC for 1 hour, to evaluate its adsorption effectiveness for methylene blue dye (MB). Adsorption kinetic and equilibrium studies at batch system were realized at room temperature (to evaluate the adsorption influence of the MB dye over the produced AC) and the Langmuir and Freundlich isotherms systems were selected for understanding the adsorption process. The produced AC showed a relatively high value of surface area equal to 1354.42 m².g-1. The required contact time for the MB to reach equilibrium was 12 hours. The adsorption performance was better delineated by the Langmuir isotherm, which maximum adsorption capacity was of 374.75 mg.g-1. In addition, the RL dimensionless factor reveled the favorable nature of the adsorption process in the used conditions. The results obtained in this study recommend the use of the produced AC from bamboo in the treatment of the water contaminated by the MB dye, foremost in higher concentrations than limits admitted by the legislation. Finally, complementary researches must be conducted to improve, even more, the quality of the produced material. |
| publisher |
Universidade Federal de Santa Maria |
| publishDate |
2018 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-50982018000301179 |
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