Veuillez utiliser cette adresse pour citer ce document : http://hdl.handle.net/123456789/757
Titre: INFLUENCE DE PARAMETRES REACTIONNELS SUR LA STOECHIOMETRIE SULFATE D’ALUMINIUM /SUBSTANCES AROMATIQUES ACIDES DANS DES EAUX A MINERALISATION VARIABLE
Auteur(s): BACHA, NAIMA
Mots-clés: Organic acids
Coagulation-flocculation
aluminium sulphate
pH
Stoichiometry
Date de publication: 2-jan-2013
Résumé: The aim of this study is to appreciate the influence of several reaction parameters on the stoichiometry’s mixture coagulant/ organic matter during the removal of organic matter by coagulation-flocculation with aluminium sulphate. Trials of Jar-test have been conducted on synthetic solutions of aromatic organic compounds dissolving into distilled water then on mineralized waters. The organic compounds tested are humic acid and pyromellitic acid which are showed carboxyl and/or hydroxyl functions with aromatic structure. The trials of flocculation have for object to evaluate the removal efficiency of organic compounds by varying several reaction parameters such as dose of coagulant, initial concentration of organic compounds, pH and ionic strength of solutions. The determination of stoichiometry of reactions between each organic compounds and aluminium sulphate has underlined that the stoichiometric laws depended not only of the compound’s structure but also on the pH and mineralization of waters. The predominant mechanisms in the process of removing organic acids tested could be phenomena of complexation or ligand exchange with the soluble or insoluble aluminic species.
URI/URL: http://hdl.handle.net/123456789/757
Collection(s) :Département de Génie Civil et Hydraulique

Fichier(s) constituant ce document :
Fichier Description TailleFormat 
influence_de_parametres_reactionnel_sur_lasulfat.pdf758,79 kBAdobe PDFVoir/Ouvrir


Tous les documents dans DSpace sont protégés par copyright, avec tous droits réservés.