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Título:
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Removal of 1,4-dioxane from industrial wastewaters: routes of decomposition under different operational conditions to determine the ozone oxidation capacity.
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Autores:
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Barndok, Helen ;
Cortijo, Luis ;
Hermosilla, Daphne ;
Negro, Carlos ;
Ángeles, Blanco
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier, 2014-09
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Química: Agua
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Materia = Ciencias: Química: Ingeniería química
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Materia = Ciencias: Química: Química industrial
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Materia = Ciencias: Química: Residuos
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Tipo = Artículo
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Resumen:
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This paper denotes the importance of operational parameters for the feasibility of ozone (O3) oxidation for the treatment of wastewaters containing 1,4-dioxane. Results show that O3 process, which has formerly been considered insufficient as a sole treatment for such wastewaters, could be a viable treatment for the degradation of 1,4-dioxane at the adequate operation conditions. The treatment of both synthetic solution of 1,4-dioxane and industrial wastewaters, containing 1,4-dioxane and 2-methyl-1,3-dioxolane (MDO), showed that about 90% of chemical oxygen demand can be removed and almost a total removal of 1,4-dioxane and MDO is reached by O3 at optimal process conditions. Data from on-line Fourier transform infrared spectroscopy provides a good insight to its different decomposition routes that eventually determine the viability of degrading this toxic and hazardous compound from industrial waters. The degradation at pH>9 occurs faster through the formation of ethylene glycol as a primary intermediate; whereas the decomposition in acidic conditions (pH
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En línea:
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https://eprints.ucm.es/id/eprint/29259/1/Removal%20of%201%2C4-dioxane%20from%20industrial%20wastewaters_Barndok_2014.pdf
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