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Titre: Optimization and Prediction of Stability of Emulsified Liquid Membrane (ELM): Artificial Neural Network
Auteur(s): Zamouche, Meriem
Tahraoui, Hichem
Laggoun, Zakaria
Mechati, Sabrina
Chemchmi, Rayene
Imran Kanjal, Muhammad
Amrane, Abdeltif
Hadadi, Amina
Mouni, Lotfi
Mots-clés: emulsified liquid membrane (ELM)
stability
Span 80
stirring speed
stirring speed
emulsification time
artificial neural network
Date de publication: 2023
Editeur: Université Akli M'hand Oulhadj - Bouira
Référence bibliographique: MDPI Journals
Résumé: In this work, the emulsified liquid membrane (ELM) extraction process was studied as a technique for separating different pollutants from an aqueous solution. The emulsified liquid membrane used consisted of Sorbitan mono-oleate (Span 80) as a surfactant with n-hexane (C6H14) as a diluent; the internal phase used was nitric acid (HNO3). The major constraint in the implementation of the extraction process by an emulsified liquid membrane (ELM) is the stability of the emulsion. However, this study focused first on controlling the stability of the emulsion by optimizing many operational factors, which have a direct impact on the stability of the membrane. Among the important parameters that cause membrane breakage, the surfactant concentration, the emulsification time, and the stirring speed were demonstrated. The optimization results obtained showed that the rupture rate (Tr) decreased until reaching a minimum value of 0.07% at 2% of weight/weight of Span 80 concentration with an emulsification time of 3 min and a stirring speed of 250 rpm. On the other hand, the volume of the inner phase leaking into the outer phase was predicted using an artificial neural network (ANN). The evaluation criteria of the ANN model in terms of statistical coefficient and RMSE error revealed very interesting results and the performance of the model since the statistical coefficients were very high and close to 1 in the four phases (R_training = 0.99724; R_validation = 0.99802; R_test = 0.99852; R_all data = 0.99772), and also, statistical errors of RMSE were minimal (RMSE_training= 0.0378; RMSE_validation = 0.0420; RMSE_test = 0.0509; RMSE_all data = 0.0406)
URI/URL: http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/14758
Collection(s) :Articles

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