ADSORCIÓN DE HERBICIDA COMERCIAL 2,4-DICLOROFENOXIACÉTICO (2,4-D) POR CARBÓN ACTIVADO
DOI:
https://doi.org/10.66104/3j6t4564Palabras clave:
Contaminante emergente; herbicida; cinética de adsorción, isotermias; Tratamiento de agua.Resumen
El objetivo de esta investigación fue evaluar la aplicabilidad y la eficiencia del carbón activado comercial en la remoción del herbicida ácido 2,4-diclorofenoxiacético (2,4-D), considerado un contaminante emergente de preocupación ambiental, principalmente en sistemas acuosos. El estudio experimental se llevó a cabo con el fin de comprender la influencia de parámetros operacionales como el pH y la concentración inicial del contaminante en la capacidad de adsorción del material. Para complementar los análisis, el carbón activado fue caracterizado mediante las técnicas de Espectroscopía Infrarroja por Transformada de Fourier (FTIR) y Microscopía Electrónica de Barrido (SEM), las cuales permitieron identificar los principales grupos funcionales y observar la morfología del carbón. Los resultados demostraron que el pH 8,0 fue el más favorable para el proceso, resultando en la mayor capacidad de adsorción (q = 84,56 mg g⁻¹). La cinética de adsorción se ajustó mejor al modelo de pseudo-segundo orden, sugiriendo el predominio de mecanismos químicos en la interacción entre adsorbato y adsorbente. El equilibrio fue descrito por la isoterma de Langmuir, indicando la formación de una monocapa homogénea sobre la superficie del carbón activado. Finalmente, el carbón comercial presentó alta eficiencia en la remoción de 2,4-D, mostrando su potencial para su aplicación en sistemas de tratamiento de agua y efluentes contaminados por contaminantes orgánicos.
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Derechos de autor 2026 Sálua Helito Abumanssur, Schaline Winck Alberti, Edson Antonio da Silva, Plínio Ribeiro Fajardo Campos

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