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Article

Sensitivity Analysis of the Catalytic Ozonation under Different Kinetic Modeling Approaches in the Diclofenac Degradation

1
Escuela de Ingeniería Química, Universidad del Valle, A.A. 25360 Cali, Colombia
2
Facultad de Ingeniería, ITSA Institución Universitaria, Cra. 45 No. 48-31 Barranquilla, Colombia
3
Photocatalysis and Solar Photoreactors Engineering, Modeling & Application of AOTs, Department of Chemical Engineering, Universidad de Cartagena, 1382-Postal 195 Cartagena, Colombia
*
Author to whom correspondence should be addressed.
Academic Editor: Jiangyong Hu
Water 2021, 13(21), 3003; https://doi.org/10.3390/w13213003
Received: 15 September 2021 / Revised: 11 October 2021 / Accepted: 21 October 2021 / Published: 26 October 2021
Optimization and sensitivity analysis of the kinetic parameters of the catalytic ozonation process is crucial to improve water treatment, reactor design, and construction. This study evaluated the optimization of the kinetic constants for Diclofenac (DCF) degradation during catalytic ozonation with Goethite (FeOOH, as a catalyst) through different kinetic modeling approaches. A central composite design was used to evaluate the effect of ozone dose and catalyst loading. The results showed that FeOOH did not significantly influence the degradation of DCF, while the reactivity of DCF with ozone was high (with >90% degradations in 20 min). However, the variation in catalyst loading significantly affected TOC removal (>10%) and ozone use, with ozone efficiency in ozone transfer (RU) 5% higher than ozonation. After evaluating the different kinetic models of reaction speed by optimizing kinetic parameters and performing sensitivity analysis for the treatment of DCF by catalytic ozonation, it can be concluded that the addition of FeOOH improved the kinetics of the decomposition of ozone and the yield in the production of hydroxyl radicals. View Full-Text
Keywords: diclofenac; reaction kinetics; mechanisms; steady-state approximation; elemental reactions; optimization diclofenac; reaction kinetics; mechanisms; steady-state approximation; elemental reactions; optimization
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MDPI and ACS Style

Lara-Ramos, J.A.; Figueroa Angulo, M.A.; Machuca-Martínez, F.; Mueses, M.A. Sensitivity Analysis of the Catalytic Ozonation under Different Kinetic Modeling Approaches in the Diclofenac Degradation. Water 2021, 13, 3003. https://doi.org/10.3390/w13213003

AMA Style

Lara-Ramos JA, Figueroa Angulo MA, Machuca-Martínez F, Mueses MA. Sensitivity Analysis of the Catalytic Ozonation under Different Kinetic Modeling Approaches in the Diclofenac Degradation. Water. 2021; 13(21):3003. https://doi.org/10.3390/w13213003

Chicago/Turabian Style

Lara-Ramos, José Antonio, Miguel A. Figueroa Angulo, Fiderman Machuca-Martínez, and Miguel A. Mueses. 2021. "Sensitivity Analysis of the Catalytic Ozonation under Different Kinetic Modeling Approaches in the Diclofenac Degradation" Water 13, no. 21: 3003. https://doi.org/10.3390/w13213003

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