Tartrazine, a dye from the agro alimentary industry, degraded by advanced oxidation processes
Journal Title: Revista Lasallista de Investigación - Year 2008, Vol 5, Issue 1
Abstract
Introduction. The prevention and control of environmental pollution is one of the main responsibilities and preoccupations of modern people. In the latter years, a considerable number of research works concerning this subject have been registered. Among these, photodegradation of pollutants is a part of the group of the advanced oxidation technologies that aim to reduce or eliminate persistent compounds such as the Azo dyes. Objective. To evaluate the degradation 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 factorial randomized design. For the experimental development, an ultra violet light lamp, a glass recipient for keeping the Tartrazine dye in acuose solution for its treatment and a bomb that allowed the recirculation of the solution through the photo reactor´s system were used. The degradation of the Tartrazine dye was determined by using ultraviolet/visible spectrophotometry. Results. A good removal index of the Tarzatrine dye was obtained for the combination of chemical oxidation by the use of 0 mg/L of TiO2 and 0,4%v/v of the hydrogen peroxide oxidation agent , and same result was obtained for the experimental combination of the photochemical process of heterogeneous photo catalysis with experimental rehearsals with 50 mg/L of TiO2 and 0,2%v/v H2O2, and 50mg/L of TiO2 and 0,4%v/v H2O2 for a removal percentage that equals 100,0%. Conclusion. The advanced oxidation processes are adequate for removing and eliminating the Tartrazine dye.
Authors and Affiliations
Joan Amir Arroyave Rojas, Luís Fernando Garcés Giraldo, Álvaro de Jesús Arango Ruiz
Keywords
Related Articles
- EP ID EP134044
- DOI -
- Views 117
- Downloads 0
Comprensión: eslabón fundamental para acercar las prácticas de estudio y las evaluativas en la educación superior. -La aplicación como elemento fundante de la comprensión -
Introducción: La evaluación como una práctica no se desliga del proceso de enseñanza. A partir de allí emerge un campo de conocimiento de gran impacto sobre el cual es necesario reflexionar toda vez que se pretende llega...
Historic Evolution of Radio Journalism in Antioquia (Colombia)
Introduction. This research work develops a conceptual collection of the facts, aspects and characters that have determined the historic evolution of informative radio in Antioquia. Objective. To develop a conceptual sea...
Modelación de isolíneas meteorológicas y cálculo del gradiente térmico para la ciudad de Puebla (México) durante el periodo junio 2005-2006 con apoyo de imágenes satelitales
Introducción. En este trabajo se presenta la modelación en 2-D, 3-D y el análisis estadístico de los datos obtenidos por la estación meteorológica automática Cumulus. Objetivo. Determinar el comportamiento de isolíneas m...
Evaluation of the fasibility of a probiotic vine native of lactobacillus casei in creamcheese
Introduction. Probiotics are living micro organisms from the lactic acid bacteria group, that, eaten in the adequate quantities, are able to affect the biota of the host organism and produce beneficial effects for the he...
Subjetividad: el desafío de integrar el sujeto en la educación
Este artículo intenta analizar la realidad, las limitaciones y las posibles transformaciones que son necesarias realizar en educación, frente a sus teorías contemporáneas. Estas concepciones proponen la inserción en las...