Authors : Mohammed H. Abdul Latif, Ibtisam J. Dawood, Basima Abdul Hassin Zaidan and Amer Jabber Jarad
Abstract: This study aims at the comparison to highlight the adsorption of [4-(hydroxyl-3, 5-dimethyl-phenyl azo) benzoic acid] azo dye ligand from aqueous solutions on calcined granulated initiated bentonite clay surface via. columnar method with and without the influence of magnetic field of 150 gauss field strength using super neodymium magnets. BET, Freundlich and Frumkin adsorption isotherms have been verified by using adsorption data. All experiments were done at different pH values (5.5, 7 and 8) using buffer solutions with a flow rate of 3 drops/min, at (25±2°C). A highest removal rate for azo ligand was (100% with magnetic field) and (92.857% without magnetic field) at pH 5.5. BET multi-layer isotherm is fitted well to the adsorption process of azo ligand under magnetic field in acidic media. Adsorption kinetic data obeys pseudo-second-order rate equations.
Mohammed H. Abdul Latif, Ibtisam J. Dawood, Basima Abdul Hassin Zaidan and Amer Jabber Jarad, 2018. Demonstrate of Magnetic Field Effect on the Capability of Adsorption Process in the Removal of Azo Dye from the Aqueous Solutions on Calcined Iraqi Bentonite Clay Mineral via. Column Method. Journal of Engineering and Applied Sciences, 13: 10687-10696.