Aplicación del modelo Doehlert para la optimización del método de electroflotación para el tratamiento de aguas residuales del sacrificio y procesamiento de aves de corral

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i12.10556

Palabras clave:

Electroquímica; Quimiometría; Aguas residuales de matadero; DQO.

Resumen

En este trabajo, proponemos el método de electroflotación (EF) para el tratamiento de aguas residuales de mataderos avícolas y se investigó su eficiencia en la reducción de la demanda química de oxígeno (DQO). Las siguientes condiciones de funcionamiento fueron optimizadas por el método Doehlert: [Al2(SO4)3], pH, tiempo del tratamiento y densidad de corriente. El efluente fue tratado en un reactor equipado con electrodos de TiO2–RuO2 (ánodo) y hierro (cátodo). Las condiciones óptimas de funcionamiento encontradas fueron pH= 9, densidad de corriente = 60 A m–2, tiempo de electrolisis = 80 min y [Al2(SO4)3]= 1,8 mg L–1. Con estas condiciones de funcionamiento fueron obtenidas las siguientes eficiencias de reducción: turbidez= 93,1%, DQO= 80,7% y demanda biológica de oxígeno (DBO)= 89,7%. El costo operativo del proceso se calculó en US$0,9 por m³. El método de EF combinado con la coagulación química demostró ser un proceso adecuado para el tratamiento de aguas residuales del sacrificio y procesamiento de aves de corral.

Citas

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Publicado

15/12/2020

Cómo citar

BASTOS, M. L.; SILVA, J. M. da; COSTA, S. S. L. da; PALOMINO-ROMERO, J. A. Aplicación del modelo Doehlert para la optimización del método de electroflotación para el tratamiento de aguas residuales del sacrificio y procesamiento de aves de corral. Research, Society and Development, [S. l.], v. 9, n. 12, p. e11491210556, 2020. DOI: 10.33448/rsd-v9i12.10556. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/10556. Acesso em: 25 nov. 2024.

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Ingenierías