RESUMENEl objetivo de la presente revisión es presentar investigaciones recientes sobre la remoción de algunos edulcorantes -reconocidos como contaminantes emergentes-del agua o matrices acuosas, utilizando los Procesos de Oxidación Avanzada (POA). En un intento por evadir el consumo de endulzantes calóricos que han provocado problemas de salud, los seres humanos consumen edulcorantes artificiales que prácticamente no se metabolizan después de ingerirse, de esa forma se integran al agua residual e inclusive resisten la degradación total en las plantas de tratamiento de agua convencionales. Por tanto, en bases de datos se revisaron electrooxidación, electro-Fenton, foto-Fenton, fotocatálisis heterogénea, oxidación por ultravioleta/peróxido y oxidación por ultravioleta/ozono, catalogados como POA. Estos procesos son una alternativa debido a que generan radicales hidroxilo ·OH, caracterizados por su alto poder oxidante. La electrooxidación se puede declarar como la más conveniente para la degradación de edulcorantes artificiales como el acesulfamo de potasio, por ejemplo, debido a la menor cantidad de componentes requeridos para su ejecución y, al mismo tiempo, se logra una eficiencia de remoción similar, o incluso mayor, comparada con otros POA. Igualmente, se documentaron los resultados y méritos relativos a la aplicación de estos al agua o matrices acuosas, así como las oportunidades para investigación futura. ABSTRACTThe objective of this review is to present recent research on the removal of some sweeteners-recognized as emerging contaminants-from water or aqueous matrices, using the Advanced Oxidation Processes (AOPs). In an attempt to evade the consumption of caloric sweeteners that has caused health problems, humans consume artificial sweeteners that are practically not metabolized after ingestion, thus integrating into wastewater and even resisting total degradation in plants conventional water treatment. Therefore, electro-oxidation, electro-Fenton, photo-Fenton, heterogeneous photocatalysis, ultraviolet / peroxide oxidation and ultraviolet / ozone oxidation cataloged as AOPs were reviewed in databases. These processes are an alternative because they generate hydroxyl radicals ·OH characterized by their high oxidizing power. Electro-oxidation can be declared as the most convenient for the degradation of artificial sweeteners such as potassium acesulfame, for example, due to the lower amount of components required for its execution and at the same time the achievement of a similar removal efficiency, or even greater, compared to other AOPs. Likewise, the results and merits related to their application to water or aqueous matrices were documented, as well as the opportunities for future research.
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