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http://dspace1.univ-tlemcen.dz/handle/112/1883
Titre: | Uranium micelle-mediated extraction in acetate medium: factorial design optimization |
Auteur(s): | Nait-Tahar, Sanaa Didi, Mohamed Amine Didier, Villemin |
Mots-clés: | cloud- point extraction uranium D2EHPA Triton X-100 Factorial design |
Date de publication: | sep-2012 |
Résumé: | A micelle-mediated extraction (CPE) procedure has been developed to remove trace amounts of uranium from wastewater using a non-ionic surfactant (Triton (X-100)) and lipophilic chelating extracting agent (D2EHPA) in acetate medium. The methodology used is based on the formation of metal complexes soluble in a micellar phase of a non-ionic surfactant. The uranyl ions complexes are then extracted into the surfactant-rich phase at a ambient temperature. The effects of different operating parameters such as the concentrations of Triton (X-100), D2EHPA and metal ions, temperature, sodium acetate rate and pH on the cloud point extraction of uranyl ions were studied in details and a set of optimum conditions were obtained. The results showed, without contribution of energy (ambient temperature), that up to 1000 ppm of uranyl ions can quantitatively be removed (> 97 %) in a single CPE extraction using optimum conditions. |
URI/URL: | http://dspace.univ-tlemcen.dz/handle/112/1883 |
ISSN: | 0236-5731 |
Collection(s) : | Articles internationaux |
Fichier(s) constituant ce document :
Fichier | Description | Taille | Format | |
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uranium.pdf | 219,21 kB | Adobe PDF | Voir/Ouvrir |
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