Evaluación de parámetros en la remoción de surfactante aniónico tipo Alquilbenceno sulfonato lineal usando electrocoagulación
Resumen
El objetivo de la presente investigación fue construir una celda de electrocoagulación en sistema por lotes y evaluar su capacidad de remover el surfactante aniónico de tipo Alquilbenceno sulfonato lineal (LAS) presente en aguas grises determinando el efecto del tipo de electrodos (Al o Fe), distancia entre electrodos (1, 1.5 y 2 cm) y voltajes de (10, 15 y 20 V). Los ensayos experimentales se realizaron durante 20 min. Las dimensiones de la celda electrólisis de onda corta construida en vidrio fueron 26 cm de largo, 7 cm de ancho y 12 cm de alto, con 10 electrodos de 12x6 cm sostenidos por una estructura de PVC. Se determinó la concentración de LAS en la solución mediante espectometria UV-Vis aplicando el método el método de Sustancias Activas al Azul de Metileno (SAAM). Se obtuvo una mayor remoción del 65.55% cuando se usó electrodos de aluminio, y 69.11% con electrodos de hierro una separación de 1.5 cm y un voltaje de 20 V, presentándose menor cambio en el pH, conductividad y consumo energético al usar el electrodo de Al3. Al evaluar el efecto del tiempo a la mejor configuración experimental (Al, 1.5 cm, 20 V) se estableció que la eficiencia de remoción aumentó a 75.13% en 60 min. Se presenta la electrocoagulación con electrodos de aluminios como una alternativa eficiente para la remoción de LAS en solución.
Palabras clave
contaminantes emergentes, electrólisis de onda corta, electroquímica, LAS
Biografía del autor/a
Angel Villabona-Ortíz, M.Sc.
Roles: Supervision, Investigation, Writing – review & editing.
Candelaria Tejada-Tovar, M.Sc.
Roles: Methodology, Experimental design, Validation, Writing – original draft.
Lenis De-La-Rosa-Jiménez
Roles: Data curation, Validation.
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