Volume 2, Issue 4, December 2017, Page: 158-165
Adsorption of Toxic Ni (II) from an Aqueous Solution by Bentonite
Soad Mohamed Sallam, Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
Abeer El-Saharty, National Institute of Oceanography and Fishers, Alexandria, Egypt
Abdel-Moniem Ahmed, Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
Received: Aug. 16, 2017;       Accepted: Aug. 28, 2017;       Published: Nov. 30, 2017
DOI: 10.11648/j.ijee.20170204.14      View  1036      Downloads  59
In this study, the adsorption potential of bentonite for removal of Ni(II) ions from wastewater has been investigated. The study involves batch type experiments to investigate the effect of initial concentration, adsorbent dose, agitation speed, contact time, temperature and pH of the solution on adsorption process and the optimum conditions were evaluated. The adsorption process fits pseudo-second order kinetic models. Langmuir and Freundich adsorption isotherm models were applied to analyze adsorption data and both were found to be applicable to the adsorption process. Thermodynamic parameters, e.g., ∆Go, ∆So and ∆Ho of the on-going adsorption process have also been calculated and the sorption process was found to be endothermic. Finally, it can be seen that Bentonite was found to be more effective for the removal of Ni(II) at the same experimental conditions.
Waste Water, Nickel, Bentonite, Adsorption
To cite this article
Soad Mohamed Sallam, Abeer El-Saharty, Abdel-Moniem Ahmed, Adsorption of Toxic Ni (II) from an Aqueous Solution by Bentonite, International Journal of Ecotoxicology and Ecobiology. Vol. 2, No. 4, 2017, pp. 158-165. doi: 10.11648/j.ijee.20170204.14
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
R. C. S. S. Sect, A, Johan, C. E. S. Teo, S. L. Gan, K. H. L. Chest, Inhalational nickel carbonyl poisoning in waste processing workers, ProQuest Med. Lib. (2005)424.
V. R. Ouhadi, R. N. Yong, M. Sedighi, Desorption response and degradation of buffering capability of bentonite, subjected to heavy metalcontaminants, Eng. Geol. 85(1-2) (2006) 102-110.
T. Novakovic, L. Rozic, S. Petrovic, A. Rosic, Synthesis and characterization of acid-activated Serbian smectite clays obtained by statistically designed experiments, Chem. Eng. 137(2) (2008) 436-442.
P. Stathi, K. Litina, D. Gournis, T. S. Giannopoulos, Y. Deligiannakis, Physico-chemical study of novel organoclays as heavy metal ion adsorbents for environmental remediacion, J. Colloid Interface Sci. 316(2) (2007) 298-309.
KG. Bhattacharyya, S. S. Gupta, Adsorption of a few heavy metals on natural and modified kaolinite and montmorillonite: a review, Adv. Colloid Interface 140 (2) (2008) 114-131.
S. M. I. Sajidu, I. Persson, W. R. I. Masamba, E. M. T. Henry, Mechanisms of heavy metal sorption on alkaline clays from Tundulu in Malawi as determined by EXAFS, J. Hazard. Mater. 158(2-3) (2008) 401-409.
W. J. Chen, L. C.. Hsiao, K. K. Y. Chen, Metal desorption from copper (II)/nickel(II)spiked kaolin as a soil component using plant-derived saponinbiosurfactant, Process Biochem. 43(5) (2008)488-498.
Beliles, The lesser metals in F. W. Oehme (Ed) 1979. Toxicity of Heavy Metals in Enviroment part 2, Marcel Dekker, New York, p. 383.
J. D. Dean, f. l. Bosqui and K. H. Lanouette, Removing heavy metals from wastwater, Environ. Sci. Technol. 6, 518 (1972).
H. M. F. freunglich, Uber die adsorption in Laosungen, J. ofphysical chemistry 57, 385 (1906).
L. Langmiur, The constitution and fundamental properties of solid and liquid, J. of Amer. Chem. Soc. 38, 2221 (1916).
M. Horsfalk, A. J. Spiff and A. A. Abia, Bull korean Chem. Soc. 25, 964 (2000).
Browse journals by subject