TY - JOUR ID - 43378 TI - Modeling of adsorption isotherms and competitive adsorption breakthroughs of Nicotine/Pyridine removal from aqueous solution by activated Montmorillonite JO - Journal of Water and Environmental Nanotechnology JA - JWENT LA - en SN - 2476-7204 AU - Ibrahim, Zeinab AU - Mohsen, Yehya AU - Toufaily, Joumana AU - Rammal, Wassim AU - Hamieh, Tayssir AU - Daou, T. Jean AU - Foddis, Maria-Laura AU - Koubaissy, bachar AD - Laboratoire Matériaux, Catalyse, Environnement et Méthodes Analytiques (MCEMA), EDST, FS, Université Libanaise, Campus Hariri, Hadath, Beyrouth, Liban. AD - Laboratoire Matériaux, Catalyse, Environnement et Méthodes Analytiques (MCEMA), EDST, FS, Université Libanaise, Campus Hariri, Hadath, Beyrouth, Liban. AD - Laboratoire des Etudes Appliquées au Développement Durable et Energie Renouvelable (LEADDER), EDST, Université Libanaise, Campus Hariri, Hadath, Beyrouth, Liban AD - Université Libanaise, Faculté des sciences V, Nabatieh, Liban AD - Université de Strasbourg, Université de Haute Alsace, Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR CNRS 7361, ENSCMu, 3 bis rue Alfred Werner, 68093 Mulhouse Cedex, France. AD - DICAAR-Dipartimento di Ingegneria Civile Ambientale e Architecttura, Università de Cagliari, Italia Y1 - 2020 PY - 2020 VL - 5 IS - 2 SP - 114 EP - 128 KW - Adsorption KW - Nicotine KW - Pyridine KW - Fixed-bed column KW - activated Montmorillonite DO - 10.22090/jwent.2020.02.002 N2 - Activated Montmorillonite (AM) reveals as a low-cost and efficient adsorbent for the adsorption of nicotine and pyridine from aqueous solutions. In this study, the influence of several operation conditions (initial compounds concentration, volumetric flow rate, and height of bed) on the shape of breakthrough curves and the mass transfer resistance was evaluated. Adsorption experiments were developed in order to determine the adsorption isotherm of the system, then the adsorption of pyridine and nicotine onto activated Montmorillonite in single and binary system has been studied using fixed bed reactor. In continuous adsorption, Results show that the maximum nicotine uptake 110 mg/g of AM was achieved through electrostatic attraction and hydrogen bond at a pH = 6.3, a flow rate of 1 ml/min and a height of bed equal to 12 mm. In binary mixtures, zeolites adsorption is governed primarily by the size of pollutants present in water. Thus, the bigger compound (in this case, Nicotine), was adsorbed more easily than the pyridine present in the mixture. Experimental data were fitted according to Fowler Guggenheim for the isotherms and Wolborska model for the breakthroughs. AM was regenerated by ethanol and the results show that about 94% of the adsorption capacity is maintained after three times of cyclic adsorption-desorption process. UR - https://www.jwent.net/article_43378.html L1 - https://www.jwent.net/article_43378_f85fbcbc307473ed4faf5f702eb25cfd.pdf ER -