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- Title
Elimination of Malachite Green on granular activated carbon prepared from olive stones in discontinuous and continuous modes.
- Authors
Benallou, M. Benzekri; Douara, N.; Chemrak, M. A.; Mekibes, Z.; Benderdouche, N.; Bestani, B.
- Abstract
The objective of this study is the removal of a cationic dye, Malachite Green (MG), by granular activated carbon (GAC) based on olive stones in discontinuous and continuous processes. The parametric study of batch adsorption of Malachite Green on granular activated carbon at room temperature has enabled us to highlight the dependence of the efficiency of this adsorbent on the various operating parameters (pH, initial concentration and mass of adsorbent). The Langmuir model was found to describe the adsorption isotherm of Malachite green on the studied GAC. The improvement of the performance of the fixed bed adsorption column requires that the breakthrough curves can be predicted according to the various system parameters (height, flow velocity and concentration of the pollutant). Experimental data were correlated with different mathematical models such as Bohart - Adams, Thomson, and Yoon - Nelson. All models used for the GAC studied were used successfully to describe the breakthrough curves of the dye.
- Subjects
MALACHITE green; GRANULATED activated carbon (GAC); ADSORPTION isotherms; OLIVE; ACTIVATED carbon; FLOW velocity; BASIC dyes
- Publication
Algerian Journal of Environmental Science & Technology, 2021, Vol 7, Issue 1, p1698
- ISSN
2437-1114
- Publication type
Article