Kinetics of the Degradation of 1,4-Dioxane Using Persulfate
Keywords:
1,4-dioxane, persulfate, degradation, kineticsAbstract
Abstract. The kinetics of oxidation of 1,4-dioxane by persulfate ions in aqueous media was investigated at different temperature, oxidant concentration and pH. Experimental results indicated that 1,4-dioxane degradation follows a pseudo-first-order decay model. Under the experimental conditions the reaction has an activation energy of 21.0 kcal/mol. Temperature and persulfate concentration significantly accelerate the 1,4 dioxane degradation, however, increasing pH (over the range of 3-11) decreased the rate.
Resumen. Se investigo la cinética de oxidación de 1,4-dioxano con iones persulfato en medio acuoso a diferente temperatura, concentración del oxidante y pH. Los resultados experimentales indican que la degradación de 1,4-dioxano sigue una cinética de pseudo-primerorden. La energía de activación de la reacción es de 21.0 kcal/mol bajo las condiciones experimentales. Tanto la temperatura como la concentración de persulfato aceleran significativamente la degradación de 1,4 dioxano, sin embargo, incrementando el pH (3-11) disminuye la velocidad.
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