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Degradation of Ibuprofen by Photo-based Advanced Oxidation Processes: Exploring Methods of Activation and Related Reaction Routes by S. Adityosulindro; C. Julcour; D. Riboul; L. Barthe is a scholarly article available to read on EtoBox.

What is Degradation of Ibuprofen by Photo-based Advanced Oxidation Processes: Exploring Methods of Activation and Related Reaction Routes about?

Several homogeneous photo-based advanced oxidation processes-namely photolysis, photo-oxidation, and photo-Fenton oxidation-were investigated for the elimination of ibuprofen in water. The effects of several operating parameters, such as the lamp type (low or medium pressure mercury, xenon-arc), the concentration of hydrogen peroxide (0.5 to 7 times the stoichiometric amount required for mineralization), and the concentration of Fenton reagent, were quantified. Photo-Fenton oxidation was also combined with low-frequency sonication to investigate possible synergistic interactions. Ibuprofen degradation under ultraviolet photolysis and ultraviolet/hydrogen peroxide oxidation followed pseudo-first-order kinetics with respect to the pollutant concentration and the apparent rate constant increased with lamp power (6-10 W) and oxidant concentration. Photo-Fenton oxidation under ultraviolet light (L1 lamp, 254 nm, 6 W) and visible light (L2 lamp, 360-740 nm, 150 W) led to complete ibuprofen removal after 3 h, but the mineralization yield of the L1/Fenton process (82%) was higher than that of the L2/Fenton process (59%) because of the effects of ultraviolet/hydrogen peroxide oxidation in t

Author

S. Adityosulindro; C. Julcour; D. Riboul; L. Barthe

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN