Fotodegradación con TiO2 del colorante Rojo Amaranto en aguas
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Date
2004
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction: Sensitivized biodegradation, with
TiO2 and sun light, is a technique which can be used
as a depuration system by itself, or as a tertiary
process, especially for industrial remains treatment.
Photocatalytical technologies are very promising for
their application on the solving of water
contamination problems. Those technologies are
very well regarded to be implemented, because the
use of sun light reduces in a great measure the
costs of the treatment. The use of this technique to
degrade and mineralize the Amaranth Red Dye, can
be implemented as a more appropriate alternative
than other traditional oxidation processes.
Objective: To study heterogeneous catalysis of
Amaranth Red dye, by the use of a sun light
collector and titanium oxide as a catalyst. Materials
and methods: For the photocatalysis process, a
composed cylinder parabolic sunlight collector
(CPC) was used and the conditions under which
the higher measurements of color removal were
gotten were analyzed. The variables analyzed for
this purpose were the concentration of the catalyst
(TiO2), the hydrogen peroxide concentration and
the relation between both of them before the
degradation and mineralization of the color.
Results:For this work synthetic solutions dyed with
100mg/L Amaranth Red color prepared with potable
water. The most influent parameter on the
degradation percentages reached, is the use of
TiO2 mixed with hydrogen peroxide. The maximum
degradation percentage obtained was 93.48% for
titanium dioxide concentration of 150mg/L and 2
ml/L of hydrogen peroxide. Conclussion: The
used of appropriate concentrations of TiO2 and
H2O2 allows to obtain good degradation and
mineralization percentages of the Amaranth Red
Dye contained in water.
Description
Keywords
Fotodegradación, Corporación Universitaria Lasallista, Fotocatálisis, Peróxido de hidrógeno (H2O2), Dióxido de titanio (TIO2), Tratamiento de aguas residuales, Contaminación del agua, Aguas residuales industriales, Fotocatálisis heterogénea