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Título : Mineralización del colorante Tartrazina mediante un proceso de oxidación avanzada
Otros títulos : Mineralization of the Tartrazine dye by an advanced oxidation process
Mineralização do corante Tartrazina mediante um processo de oxidação avançada
Autor : Arroyave Rojas, Joan Amir
Garcés Giraldo, Luís Fernando
Arango Ruíz, Álvaro
Palabras clave : FOTODEGRADACIÓN
CORPORACIÓN UNIVERSITARIA LASALLISTA
TARTRAZINA
AGUAS RESIDUALES
CONTAMINACIÓN DEL AGUA
OXIDACIÓN
DIÓXIDO DE TITANIO (TIO2)
COLORANTE AZO
MINERALIZACIÓN
TRATAMIENTO DE AGUAS RESIDUALES
Fecha de publicación : 2009
Editorial : Corporación Universitaria Lasallista
Citación : Revista LASALLISTA de Investigación;Julio - Diciembre de 2009 Vol.6, No.2
Resumen : Introduction. The importance of treating waste waters is based on removing the contaminants and the mineralization of the components into compounds harmless for the environment, aiming to reduce the impact and the environmental misbalance generated by the presence of undesired substances in the aqueous ecosystems. Objective. To evaluate the mineralization of the Tartrazine dye by the use of heterogeneous photo catalysis with titanium dioxide and an ultra violet light lamp. Materials and methods. An experimental randomized factorial design was used. In the experiments, an ultra violet light lamp, a glass reservoir to store the aqueous solution sample and a pump to re-circulate the solution, were used. The mineralization was determined by the ultra violet /visible espectrophotometry, using sulfates for the parameter, and the removal of sulfates was calculated at different concentration times. Results. Mineralization percentages of the Tartrazine dye above 92.8% were achieved. Nevertheless, when technical and economic factors were analyzed, it was considered that the most adequate experimental combination to achieve the dye’s mineralization corresponds to a combination of 0mg/L of TiO2 and 0,2 % v/ v of the hydrogen peroxide oxidation agent, which represents a chemical oxidation process. Conclusion. Advanced oxidation processes, such as chemical oxidation with hydrogen peroxide, are beneficial for the mineralization of the Tartrazine dye.
URI : http://hdl.handle.net/10567/219
ISSN : 1794-4449
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