Adsorption techniques are widely used to remove certain classes of pollutants from wastewater. Phenolic compounds represent one of the problematic groups. Na-Y zeolite has been synthesized from locally available Iraqi kaolin clay. Characterization of the prepared zeolite was made by XRD and surface area measurement using N2 adsorption. Both synthetic Na-Y zeolite and kaolin clay have been tested for adsorption of 4-Nitro-phenol in batch mode experiments. Maximum removal efficiencies of 90% and 80% were obtained using the prepared zeolite and kaolin clay, respectively. Kinetics and equilibrium adsorption isotherms were investigated. Investigations showed that both Langmuir and Freundlich isotherms fit the experimental data quite well. On the other hand, the adsorption of phenol was found to obey first-order kinetics.
Kareem Kh. Ez., Fluid catalytic cracking of petroleum fraction (vacuum gas oil) to produce gasoline, PhD. Thesis University of Baghdad, 2010
Haden WL, Metuchen J, Dzierzanowski FJ, Somerset NJ, Method For Making a Faujasite-Type Crystalline Zeolite, US Patent,3,338,672, 1967
Treacy MMJ, Higgins JB, Collection of simulated XRD powder patterns for zeolites, Published on behalf of the Structure Commission of the International Zeolite Association, Fourth Revised Edition, ELSEVIER, 2001
Christidis GE, Papantoni H, The Open Mineralogy Journal, 2, 1-5 1,1874-4567/08. Bentham Science Publishers Ltd., 2008
Jeppu JP, Clement TP, J. Contaminant Hydrol., 129, 46, 2012
Potgieter JH, Bada SO, Potgieter-Vermaak SS, Water SA., 35(1), 2009