High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon
Heavy metal wastewater pollution has become an environmental and industrial challenge worldwide. Hexavalent chromium (Cr(VI)) is one of the most common forms of chromium metal. Hexavalent chromium pollution is a concern because it was hazardous and can accumulate in the tissues of living organisms a...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2022-01-01
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| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2022/8960379 |
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| author | Achmad Chusnun Niam Ernso Fenelon Erlinda Ningsih Yustia Wulandari Mirzayanti Eka Kristanti |
| author_facet | Achmad Chusnun Niam Ernso Fenelon Erlinda Ningsih Yustia Wulandari Mirzayanti Eka Kristanti |
| author_sort | Achmad Chusnun Niam |
| collection | DOAJ |
| description | Heavy metal wastewater pollution has become an environmental and industrial challenge worldwide. Hexavalent chromium (Cr(VI)) is one of the most common forms of chromium metal. Hexavalent chromium pollution is a concern because it was hazardous and can accumulate in the tissues of living organisms and the environment. The adsorption method using activated carbon can be one of the methods to treat hexavalent chromium waste. This study selected Samanea saman as the activated carbon because it contains hemicellulose, lignocellulose, and lignin, which are the requirements for an excellent activated carbon. The study’s objective is to analyze Samanea saman activated carbon (SSAC) to remove hexavalent chromium, measure the adsorption capacity, and determine the appropriate type of adsorption isotherm layer based on the maximum R2 and minimum χ2 values. The process of making activated carbon was activated using K2CO3 through a pyrolysis process and using batch adsorption. The SEM results as characterization of SSAC depicted that the high pore was well developed. The optimal conditions for Samanea saman indicated high efficiency toward hexavalent chromium ions within the following process parameters; pH value 5, adsorbent dosage 5 g, and initial concentration 20 mg/L. The findings demonstrate that SSAC leads to the removal efficiency of hexavalent chromium being 99.90%, with the greatest adsorption capacity of 0.8949 mg/g. Based on the maximum R2 and minimum χ2 values, the most suitable adsorption isotherm model in SSAC was the Freundlich isotherm existing in the monolayer (R2=0.999). The experimental results demonstrated that adsorption of Cr(VI) was well performed by SSAC. Thus, the SSAC material is an appropriate adsorbent for the removal of hexavalent chromium in the water and has the potential to be industrial applied. |
| format | Article |
| id | doaj-art-03b875ccc42c420e91e02c569421966f |
| institution | Kabale University |
| issn | 2048-4038 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-03b875ccc42c420e91e02c569421966f2025-01-02T22:41:08ZengSAGE PublishingAdsorption Science & Technology2048-40382022-01-01202210.1155/2022/8960379High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated CarbonAchmad Chusnun Niam0Ernso Fenelon1Erlinda Ningsih2Yustia Wulandari Mirzayanti3Eka Kristanti4Department of Environmental EngineeringCentre de Recherche Interdisciplinaire pour la Vulgarisation Agricole et le Développement Local (CREIVADEL)Department of Chemical EngineeringDepartment of Chemical EngineeringDepartment of Environmental EngineeringHeavy metal wastewater pollution has become an environmental and industrial challenge worldwide. Hexavalent chromium (Cr(VI)) is one of the most common forms of chromium metal. Hexavalent chromium pollution is a concern because it was hazardous and can accumulate in the tissues of living organisms and the environment. The adsorption method using activated carbon can be one of the methods to treat hexavalent chromium waste. This study selected Samanea saman as the activated carbon because it contains hemicellulose, lignocellulose, and lignin, which are the requirements for an excellent activated carbon. The study’s objective is to analyze Samanea saman activated carbon (SSAC) to remove hexavalent chromium, measure the adsorption capacity, and determine the appropriate type of adsorption isotherm layer based on the maximum R2 and minimum χ2 values. The process of making activated carbon was activated using K2CO3 through a pyrolysis process and using batch adsorption. The SEM results as characterization of SSAC depicted that the high pore was well developed. The optimal conditions for Samanea saman indicated high efficiency toward hexavalent chromium ions within the following process parameters; pH value 5, adsorbent dosage 5 g, and initial concentration 20 mg/L. The findings demonstrate that SSAC leads to the removal efficiency of hexavalent chromium being 99.90%, with the greatest adsorption capacity of 0.8949 mg/g. Based on the maximum R2 and minimum χ2 values, the most suitable adsorption isotherm model in SSAC was the Freundlich isotherm existing in the monolayer (R2=0.999). The experimental results demonstrated that adsorption of Cr(VI) was well performed by SSAC. Thus, the SSAC material is an appropriate adsorbent for the removal of hexavalent chromium in the water and has the potential to be industrial applied.http://dx.doi.org/10.1155/2022/8960379 |
| spellingShingle | Achmad Chusnun Niam Ernso Fenelon Erlinda Ningsih Yustia Wulandari Mirzayanti Eka Kristanti High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon Adsorption Science & Technology |
| title | High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon |
| title_full | High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon |
| title_fullStr | High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon |
| title_full_unstemmed | High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon |
| title_short | High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon |
| title_sort | high efficiency adsorption of hexavalent chromium from aqueous solution by samanea saman activated carbon |
| url | http://dx.doi.org/10.1155/2022/8960379 |
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