| Autor: |
Laftani, Yasmine, Boussaoud, Abdelghani, Chatib, Baylassane, Hachkar, Mohsine, El Makhfouk, Mohammed, Khayar, Mohammed |
| Předmět: |
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| Zdroj: |
Environmental Engineering Research; Jun2022, Vol. 27 Issue 3, p1-8, 8p |
| Abstrakt: |
The photocatalytic oxidation using the highly reactive hydroxyl radical from UV/H2O2 system is one of the advanced oxidation processes (AOPs) that destroy or even mineralize organic pollutants, which are harmful to the environment. However, certain costs must be controlled by taking into account influencing factors such as the dose of irradiance, oxidant dosage, and the complexity of the background matrix, among others. The objective of this work was to optimize Ponceau S (PS) degradation efficiency by UV/H2O2 process in artificial seawater by using central composite design (CCD). The three selected factors were the hydrogen peroxide concentration, the irradiated volume and the PS dosage. The regression analysis showed good fit of the experimental data to the second-order polynomial model with a correlation coefficient (R²) of 0.9612. The optimal conditions were found to be: C(PS) = 50.91 mg/L, [H2O2] = 2.24 mM, and irradiated volume = 600 mL. Under these conditions, the PS decolorization efficiency was equal to 72.47%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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