Fotocatálisis de aguas residuales de la industria textil utilizando colector solar
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Date
2004
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction: Photocatalysis made with sun light
appears as a simple and economic alternative to treat
wastewater, colored with dyes from the textile industry.
The use of this technology for the degradation and
mineralization the 84 orange reactive dyes, can open
a new route different from the traditional oxidation
processes. Objective: To study the photocatalysis with
TiO2 in colored wastewater using a sunlight collector.
Materials and Methods: A sunlight collector made
up by three modules (each one made up by eight glass
Schott-Duran pipes) was used. Each glass pipe is 48
cm of external diameter and 150 cm long and also
contains an aluminum sheet, which allows the reflection
of sunlight. The whole device had a re-circulation bomb
and a thank, the sunlight collector had an inclination
of 6 degrees in comparison with the floor and was
facing North because it must be located according to
the geographic position of the place. Only one condition
was modificated for each experiment with the objective
of studying its influence in the dye’s degradation. In
this research work we show different combinations of
hydrogen peroxide, titanium dioxide and air, used in
the photo catalysis of the 84 orange reactive and waste
water samples from textile industry. Results: The
optimal concentrations found for 84 orange reactive
in a 340 mg/lL concentration are: 40 mg/L of titanium
dioxide and 2 mg/L of hydrogen peroxide with no air
injection. Conclusion: With an appropriate quantity
of titanium dioxide and a well calculated concentration
of hydrogen peroxide, very good concentration
percentages of the 84 orange reactive and colored
waste waters are obtained, besides of high
mineralization percentages.
Description
Keywords
Fotocatálisis, Corporación Universitaria Lasallista, Contaminación del agua, Aguas residuales, Aguas residuales coloreadas, Aguas residuales industriales, Irradiación solar, Fotodegradación, Tratamiento de aguas residuales