Tratamiento de aguas residuales de la industria textil por medio de la fotocatálisis
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Date
2012-07-11
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 tank. 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 modified 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 photocatalysis 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, Área Metropolitana del Valle de Aburrá, Corporación Universitaria Lasallista, Dióxido de titanio (TIO2), Aguas residuales industriales, Fotodegradación, Tratamiento de aguas residuales, Aguas residuales coloreadas, Naranja reactivo 84