Evaluación Experimental de la Reducción de Conductividad Eléctrica Mediante Biopolímeros Derivados de Mucílagos Vegetales

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Autores/as

DOI:

https://doi.org/10.56845/terys.v5i2.693

Palabras clave:

mucílago, bioadsorbente, reducción de salinidad, adsorción, conductividad eléctrica

Resumen

En este estudio se evaluó experimentalmente el potencial de diferentes mucílagos vegetales como bioadsorbentes naturales para la reducción de la conductividad eléctrica y de la salinidad estimada en agua de mar y soluciones patrón de salmuera. Se emplearon biomateriales ricos en polisacáridos obtenidos de nopal (Opuntia spp.), jacube (Acanthocereus tetragonus), sábila (Aloe vera), moringa (Moringa oleifera) y linaza (Linum usitatissimum). Los experimentos se realizaron utilizando soluciones patrón de salmuera y agua de mar recolectada en la playa Miramar de Ciudad Madero, Tamaulipas, México, con conductividades eléctricas iniciales entre 73,000 y 75,000 µS/cm, respectivamente. El tratamiento consistió en ciclos sucesivos de mezcla, adsorción y separación del complejo entre el mucílago y las sales, seguidos de una etapa de precipitación del biopolímero con etanol para su remoción del agua tratada y posterior recuperación del disolvente. Los resultados mostraron una reducción significativa de la conductividad eléctrica en todos los tratamientos evaluados, alcanzándose disminuciones superiores al 92 %. Las especies cactáceas presentaron el mejor desempeño, particularmente el nopal, que alcanzó reducciones de conductividad de hasta 98.09 % en agua de mar, con una conductividad eléctrica final de 1,435 µS/cm, y de 98.43 % en salmuera, con una conductividad eléctrica final de 1,147 µS/cm. Debido a que no se determinaron las concentraciones individuales de los principales iones presentes en solución, los resultados se interpretaron como una estimación indirecta de la reducción de salinidad basada en la conductividad eléctrica. Asimismo, se observaron disminuciones moderadas del pH hacia valores ligeramente ácidos (≈5.0–6.5), lo que sugiere interacciones entre los grupos funcionales del mucílago y los cationes presentes en la solución. Estos resultados mostraron que los mucílagos vegetales poseen potencial para reducir la conductividad eléctrica de soluciones salinas y sugieren que este efecto podría estar asociado a una combinación de mecanismos de adsorción iónica, intercambio catiónico, floculación coloidal y exclusión Donnan dentro de la matriz polimérica. Estos hallazgos destacaron el potencial de los mucílagos vegetales como materiales renovables y de bajo costo para el desarrollo de procesos sostenibles de tratamiento de agua y disminución de la salinidad estimada mediante la conductividad eléctrica.

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Publicado

2026-08-02

Cómo citar

Rivera Cortés, E., Ruiz Solís , D. G., Cuéllar Hinojosa, E. S., Lizardi Conti, C. de J., Lozano Ramírez , T., Reyes Valdez, J. J., & Morales Zamudio , L. (2026). Evaluación Experimental de la Reducción de Conductividad Eléctrica Mediante Biopolímeros Derivados de Mucílagos Vegetales. Tendencias En energías Renovables Y Sustentabilidad, 5(2), 191–203. https://doi.org/10.56845/terys.v5i2.693

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