Optimization and modeling of Tramadol hydrochloride degradation by the homogenous photo-Fenton-like system assisted by in situ H 2 O 2 formation

This study examines the removal efficiency of Tramadol hydrochloride (TR) and mineralization (chemical oxygen demand, COD) by the effective photoinduced Fenton-simulated system under artificial light (UVA). The Box-Behnken design was used to optimize the value of each parameter. The model yielded th...

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Bibliographic Details
Published in:Water science and technology 2023-03, Vol.87 (5), p.1174
Main Authors: Haciane, Yamina Meziane, Bouafia, Souad Chergui, Chabani, Malika, Benramdan, Imen-Kahina, Mebtouche, Manel, Neffa, Mounsef, Touzani, Rachid
Format: Article
Language:English
Subjects:
Hydrogen Peroxide
Iron
Oxidation-Reduction
Tramadol
Water Pollutants, Chemical
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Summary:This study examines the removal efficiency of Tramadol hydrochloride (TR) and mineralization (chemical oxygen demand, COD) by the effective photoinduced Fenton-simulated system under artificial light (UVA). The Box-Behnken design was used to optimize the value of each parameter. The model yielded the following optimal parameters: [TR] = 10 mg, ratio ([Oxalate ] /[Fe ] ) = 100, initial pH = 2.83, and [Fe ] = 1.298 mg with effective TR removal (100%) and COD removal efficiency (72.82%). The presence of oxygen has a positive effect by increasing hydrogen peroxide production from 4.36 to 8.12 mg L and by maximizing a change in Fe speciation. The degradation kinetics of ΤR in the oxygen-saturated medium is four times faster than that in the normal aerated medium. The K rate constants increased quickly from 5.72 × 10 to 20 × 10 min . The percent COD removal increased to 87.46%, and the final pH increased from 5.31 to 6.23.
ISSN:0273-1223