La Tartrazina, un colorante de la industria agroalimentaria, degradado mediante procesos de oxidación avanzada
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Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
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.
Description
Keywords
Fotodegradación, Corporación Universitaria Lasallista, Tartrazina, Colorante azoico, Aguas residuales, Tratamiento de aguas residuales, Dióxido de titanio (TIO2), Industria alimenticia, Aguas residuales industriales, Peróxido de hidrógeno (H2O2)