Enhancement of photocatalytic degradation of ibuprofen contained in water using a static mixer
Por:
Nunez-Flores, A., Sandoval, A., Mancilla, E., Hidalgo-Millan, A., Ascanio, G.
Publicada:
1 abr 2020
Resumen:
In this work, an experimental study on the influence of hydrodynamic
conditions on the total degradation process of ibuprofen dissolved in
water has been carried out. A comparative analysis of the use of TiO2 in
suspension under different operating conditions has been performed using
a static mixer to increase the agitation regime of the fluid inside a
tubular reactor. The ibuprofen degradation level and carbon
concentration were measured by means UV spectroscopy and TOC,
respectively. On the other hand, the particle image velocimetry
technique has been used to characterize the flow behavior. The presence
of the static mixer produced high perturbations on the water flow,
increasing the mixing rate of the generated OH. radicals in the solution
as well as the contact of the suspended TiO2 particles with the
contaminated water. A combination of the static mixer at the lowest flow
rate increased the residence time in the radiated region resulting in
the highest degradation rates. Additionally, the turbulent intensity
played an important role on the intensification and improvement of the
degradation activity, then it should be considered as key performance
parameter of tubular reactors. (C) 2020 Institution of Chemical
Engineers. Published by Elsevier B.V. All rights reserved.
Filiaciones:
Nunez-Flores, A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Aplicadas & Tecnol, Mexico City 04510, DF, Mexico
Sandoval, A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Aplicadas & Tecnol, Mexico City 04510, DF, Mexico
Mancilla, E.:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Hidalgo-Millan, A.:
Univ Autonoma Nayarit, Tepic 63155, Nayarit, Mexico
Ascanio, G.:
Univ Nacl Autonoma Mexico, Inst Ciencias Aplicadas & Tecnol, Mexico City 04510, DF, Mexico
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