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Adsorption of Organic Dyes onto Commercial Activated Carbon by Using Non-linear Regression Method |
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| รหัสดีโอไอ | |
| Creator | 1. Hadjer Zeghache 2. Said Hafsi 3. Noureddine Gherraf |
| Title | Adsorption of Organic Dyes onto Commercial Activated Carbon by Using Non-linear Regression Method |
| Contributor | - |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2562 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 12 |
| Journal No. | 1 |
| Page no. | 127-142 |
| Keyword | Erythrosine, Brilliant green, Activated carbon, Isotherm, kinetic, Non-linear regression |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | The present paper intends to appraise the influencing operative variable on the adsorption efficiency of two organic dyes namely Erythrosine and Brilliant green on activated carbon in aqueous solution. The experimental data at equilibrium were studied through the non-linear regression of Langmuir, Freundlich and Liu isotherm models. Collected data and obtained results seems to fit well with the Liu model for both dyes with R2adj values closer to one and lower values of SD. The kinetic behaviors of solute adsorption were respectively employed by using different existing models, Pseudo-first, Pseudo-second order, General order, Avrami and Elovich equation. Findings results showed that General order had more conformity compared with the others, for Brilliant green with R-square adj =0.9949 and Avrami kinetic model for Erythrosine with R-square adj = 0.9956. According to the calculated thermodynamic parameters the adsorption process of the Erythrosine dye is endothermic and spontaneous process in nature (_H0=41.428-41.459KJ/mol) and non-spontaneous for the Brilliant green dye (_H0 =80.409-54.955KJ/mol) over the studied temperatures (293K-303K). |
