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Activated carbon is one of the highly adsorbent materials, characterized by a specific surface area of 548.13m 2 g -1 . Their manufacture uses the natural raw material such as date cores. Several models have been used to monitor the adsorption kinetics. Lager green model, for the determination of the apparent velocity constant (kad) and the order of the reaction. Model of Weber and Morris to approximate the kinetic constant of intra particular diffusion (kid).Mc Kay model, to determine the external mass transfer coefficient (kf). The interpolation by the three models above is carried out for each compound for the different initial concentrations and different pH. That all the models used well describe the experimental results of diffusion adsorption. All the models used describe well the experimental results of the adsorption and that of Langmuir-Freundlich (with three constants) gives a more precise description. A classification of the adsorption of four phenolic compounds according to the maximum adsorption capacity at different of solution(pHs), and according to the pH for each compound.
Khaoula Hidouri. 2017. \u201cKinetic Models of Adsoption on Active Carbon DSAC36-24\u201d. Global Journal of Research in Engineering - C: Chemical Engineering GJRE-C Volume 17 (GJRE Volume 17 Issue C3): .
Crossref Journal DOI 10.17406/gjre
Print ISSN 0975-5861
e-ISSN 2249-4596
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Total Score: 104
Country: Tunisia
Subject: Global Journal of Research in Engineering - C: Chemical Engineering
Authors: Khaoula Hidouri, Ali Benhmidene, Bechir Chouachi, Ammar Houas (PhD/Dr. count: 0)
View Count (all-time): 233
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Publish Date: 2017 11, Fri
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Activated carbon is one of the highly adsorbent materials, characterized by a specific surface area of 548.13m 2 g -1 . Their manufacture uses the natural raw material such as date cores. Several models have been used to monitor the adsorption kinetics. Lager green model, for the determination of the apparent velocity constant (kad) and the order of the reaction. Model of Weber and Morris to approximate the kinetic constant of intra particular diffusion (kid).Mc Kay model, to determine the external mass transfer coefficient (kf). The interpolation by the three models above is carried out for each compound for the different initial concentrations and different pH. That all the models used well describe the experimental results of diffusion adsorption. All the models used describe well the experimental results of the adsorption and that of Langmuir-Freundlich (with three constants) gives a more precise description. A classification of the adsorption of four phenolic compounds according to the maximum adsorption capacity at different of solution(pHs), and according to the pH for each compound.
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