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Browsing Articles by Author "BENDEBANE Salima"

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    Elimination of malachite green by modified Fenton like process. Application of Box Behnken design
    (Global NEST Journal, 2024-10-16) BENDEBANE Salima
    The aim of this work was to investigate an advanced oxidation process for removing malachite green from aqueous solutions using a modified Fenton-like process. An experimental Box-Behnken design was applied to determine the optimal conditions by examining the effects of catalyst concentration ([Fe2+]), oxidant concentration ([K2S2O8]), and stirring speed. The analysis of variance (ANOVA) indicated that oxidant concentration was the most significant factor, with a p-value of 0.001, while catalyst concentration, the quadratic term of the oxidant, and the interaction between catalyst concentration and stirring speed were also significant. The optimal conditions for maximum dye removal were found to be a catalyst concentration of 3.5 ppm, an oxidant concentration of 3.07 ppm, and a stirring speed of 200 rpm, achieving a theoretical degradation yield of 100% and an experimental yield of 98%. This agreement validates the model and the importance of the optimized parameters. Additionally, degradation kinetics studies in various natural waters revealed that oxidation efficiency followed this order: Distilled water (98%) > Seawater ≈ Industrial water (88.97%) > Source water (85.57%) > Mineral water (80.52%).
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    Optimization of extraction parameters of cationic dye using emulsified liquid membrane process. Application of Box-Behnken design
    (International Journal of Chemistry and Technology, 2022) BENDEBANE Salima
    Cationic dye (Methylene blue) was extracted from wastewater by using emulsified liquid membrane process. The membrane is composed of two phases: organic and aqueous. D2EHPA, SPAN 80, and acid are the composition of the aqueous phase, however, the fuel oil represents the organic phase. The effect of different parameters such as the initial concentration of cationic dye (MB), the addition of salt (KCl/ NaCl/ Na2SO4), acid (HCl/ H2SO4/H3PO4) and the extractant concentration (10, 30 and 50 ppm) was examined using Box-Behnken design. The optimization of the extraction has been shown that the extraction efficiency reach100% for the following optimum operating conditions: 30 ppm for the initial concentration of [BM]0, 10%w for the extracting (D2EHPA) with the presence of Na2SO4 and H2SO4. It can be said that the ELM method is efficient for the removal of methylene bleu