Removal of two textile dyes from aqueous solutions onto calcined bones》.pdf

Journal of the Association of Arab Universities for Basic and Applied Sciences (2013) 14, 51–59 University of Bahrain Journal of the Association of Arab Universities for Basic and Applied Sciences /locate/jaaubas ORIGINAL ARTICLE Removal of two textile dyes from aqueous solutions onto calcined bones Mohammadine El Haddad a,b,*, Rachid Slimani b, Rachid Mamouni c, Saıd ElAntri¨ b, Saıd Lazar¨ b a ´ ´ Equipe de Chimie Analytique Environnement, Faculte Poly-disciplinaire, Universite Cadi Ayyad, BP 4162, 46000 Safi, Morocco b ´ ´ Laboratoire de Biochimie, Environnement Agroalimentaire, Faculte des Sciences Techniques, Universite Hassan II, BP 146, 20800 Mohammedia, Morocco c ´ ´ ´ Laboratoire de Chimie Organique, Equipe de Chimie Bio-Organique Appliquee, Faculte des Sciences, Universite Ibn Zohr, BP 8061, 80000 Agadir, Morocco Received 1 August 2012; revised 21 December 2012; accepted 3 March 2013 Available online 31 March 2013 KEYWORDS Abstract The adsorption of textile dyes such as Direct Red 75 and Direct Red 80 onto calcined Calcined bones; bone was studied for their removal from aqueous solutions. The adsorption of Direct Red 75 Textile dyes; and Direct Red 80 occurred by studying the effects of adsor