Author(s)

Mouhamed Ndoye^1,2, Mamadou Faye^1,2*, Cheikhou Kane^1,2, Adama Diop^1,2, Mar Codou Guèye Diop^1,2

¹Water, Energy, Environment and Industrial Processes Laboratory, Ecole Superieure Polytechnique (ESP), Dakar, Senegal.
²Cheikh Anta Diop University, Dakar, Senegal.

Adsorption on activated carbon is one of the most widely used methods for the removal of dyes. The objective of this study is to valorize the shells of Saba senegalensis from local product in Senegal in the form of activated carbon and to test its effectiveness for the removal of methyl violet. The study was carried out in batch mode for a maximum duration of one hour with 100 mL of solution treated at 600 rpm. The results reveal that the granulometry 500 μm gives the best yield with an adsorption rate of 95%, a mass of adsorbent of 0.2 g gives an adsorption capacity of 20 mg/g, the contact time of one hour with a capacity of 5 mg/g. The study also showed that the adsorption process of methyl violet is described by the pseudo-second order kinetic model with correlation coefficient of 0.99. Two adsorption isotherms were studied, and the results revealed that the Freundlich model better describes the adsorption of methyl violet on Saba senegalensis shell residue-based activated carbon (SSSRAC). The results indicate that SSSRAC could be used as a low-cost alternative for the removal of textile dyes such as methyl violet.

Methyl Violet, Adsorption, Activated Carbon, Saba senegalensis Shell

Ndoye, M. , Faye, M. , Kane, C. , Diop, A. and Diop, M. (2023) Removal of Methyl Violet in Aqueous Solution on Activated Carbon Based on Saba senegalensis Shell Residues. Journal of Geoscience and Environment Protection, 11, 197-208. doi: 10.4236/gep.2023.115013.