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Removal of emerging contaminants by Fenton and UV-Driven Advanced Oxidation Processes
journal contribution
posted on 2015-12-08, 11:02 authored by Marco Lucas, Jose A. PeresThe removal efficiencies of four different
parabens (methylparaben (MP), ethylparaben (EP),
propylparaben (PP), and butylparaben (BP)) using
Fenton reagent, UV irradiation, UV/H2O2, and UV/
H2O2/Fe2+ were evaluated to assess the level of
paraben degradation achieved using different advanced
oxidation processes (AOPs). UV irradiation
by itself provided paraben conversions between 27
and 38 % after a reaction time of 180 min. The UV/
H2O2 system increased the paraben conversion to
values between 62 and 92 %, and the Fenton process
was revealed as inefficient in paraben degradation
within the experimental conditions used. Photo-
Fenton presented similar removal rates to the UV/
H2O2 process. Among the four parabens studied,
butylparaben was the most easily removed, and it
was possible to attain degradations higher than
90 %. In the UV/H2O2 and photo-Fenton processes,
the overall kinetic constant could be split into two
main components: direct oxidation by UV radiation
(photolysis) and oxidation by free radicals (mainly
HO•) generated from the photodecomposition of
H2O2. This work reveals that UV-driven oxidation
processes can be widely used to remove parabens
from contaminated aqueous solutions
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
Water, Air, & Soil PollutionVolume
226Issue
8Citation
LUCAS, M.S. and PERES, J.A., 2015. Removal of Emerging Contaminants by Fenton and UV-Driven Advanced Oxidation Processes. Water, Air, & Soil Pollution, 226:273Publisher
© Springer International Publishing SwitzerlandVersion
- NA (Not Applicable or Unknown)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015Notes
This paper is closed access.ISSN
0049-6979eISSN
1573-2932Publisher version
Language
- en