Degradación de Colorante Amarillo 12 de Aguas Residuales Industriales utilizando Hierro Cero Valente, Peróxido de Hidrógeno y Radiación Ultravioleta
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Fecha
2016-01-01
Autores
Gilpavas, E.
Medina, J.
Dobrosz-Gómez, I.
Gómez, M.Á.
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Editor
Centro de Informacion Tecnologica
Resumen
The Fenton heterogeneous process in a fluidized bed reactor using Zero Valent Iron (ZVI), in the metallic state, for the treatment of textile wastewater has been used an analyzed. The aim of this work was to optimize the following operating parameters: initial dye concentration, H2O2 concentration, pH, amount of ZVI, and UV radiation, for the removal of dye and organic matter. At first, a fractional factorial experimental design allows defining the most influential factors. After that, they were optimized using the Response Surface Methodology coupled to the Box-Behnken experimental design. The optimal conditions were found to be as follows: initial dye concentration, 881 mg/L; pH 5; ZVI concentration, 5,31 g/L; H2O2 concentration, 0,86 mL/L. At these conditions, the degradation kinetics was performed, reaching 100% and 80,83% of dye and chemical oxygen demand respectively, in 150 minutes of reaction.
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Palabras clave
Chemical oxygen demand , Chemical reactors , Degradation , Fluid catalytic cracking , Fluidized bed process , Fluidized beds , Iron , Optimization , Oxidation , Reaction kinetics , Statistics , Ultraviolet radiation , Wastewater , Wastewater treatment , Box-Behnken design , Box-Behnken experimental design , Fenton , Fractional factorial experimental design , Industrial wastewaters , Initial dye concentration , Response surface methodology , Zero-valent iron , Chemicals removal (water treatment)