Revista Mexicana de Ingeniería Química, Vol. 22, No. 3 (2023), IA2370

Avocado seed powder residues as a promising bio-adsorbent for color removal from textile wastewater

E. G. Gonzales-Condori, G. Avalos-López, J. Gonzales-Condori, A. Mujica-Guzmán, R. Terán-Hilares, G. Briceño, J. M. Quispe-Avilés, P. J. Parra-Ocampo, J. A. Villanueva-Salas



Pollution by textile dyes is one of the most relevant environmental problems due to its significant negative effects on the environment. In response to this, several remediation processes have been developed, with adsorption being an effective process for removing these contaminants from water. In addition, the use of natural adsorbents proves to be a cost-effective alternative to remove organic pollutants. In this research, the capacity of avocado seed as a bio-adsorbent for the removal of color from textile wastewater obtained from a textile company was evaluated. Using the Response Surface Methodology and a Central Composite Design, it was found that the factor with the greatest influence on the removal process was pH. In addition, at 20 °C, the optimum conditions to achieve the greatest color removal from the textile wastewater were pH=2, dosage of 20 g/L and a 30-minute agitation time. According to these conditions, 96.35 % of the color of the wastewater was removed.

Keywords: Avocado seed, adsorption, textile wastewater, pollution, removal.



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