International Journal of Mineral Processing and Extractive Metallurgy
Volume 1, Issue 5, November 2016, Pages: 46-55
Received: Sep. 2, 2016;
Accepted: Oct. 20, 2016;
Published: Nov. 23, 2016
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Khaled Abd-ElAal Selim, Central Metallurgical Research & Development Institute, Minerals Technology Department, CMRDI, Cairo, Egypt
Rasha Smair El-Tawil, National Research Center, Inorganic Chemistry Department, NRC, Cairo, Egypt
Nagui Aly Abdel-Khalek, Central Metallurgical Research & Development Institute, Minerals Technology Department, CMRDI, Cairo, Egypt
The objective of this paper is to enhance the adsorbing performance of the natural Egyptian phyllosilicate mineral, glauconite (greensand), through surface modification to obtain a particular combination of physical and chemical properties. It was found that Zn removal increased from 84% to 94%, while Pb removal varied from 96.67% to 99% by using from 10-25g/l modified glauconite in a solution having 50 mg/l Zn2+ and 30 mg/l pb2+ ions. Adsorption data were investigated using Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms. Linear regression methods are used to determine adsorption capacities and optimum adsorption isotherms. R2 value of Langmuir isotherm model for pb2+ is higher than other models. The maximum monolayer coverage (Qo) from Langmuir isotherm model was calculated to be 15.363 and 21.654 mg/g and the separation factor indicating a favorable sorption experiment is 0.0324 and 0.13207 for Zn2+ and Pb2+ respectively. Also from Freundlich isotherm model, the intensities of adsorption (n) that indicated favorable sorption are 1.3036 and 1.364 for Zn2+ and Pb2+ respectively. The heat of sorption process was calculated from Temkin isotherm model to be 6.44101 and 4.1353 J/mol for Zn2+ and Pb2+ respectively, that indicated to the physisorption process which B < 20 kJ/mol so, Temkin isotherm is not fitted with experimental adsorption but the mean free energy was calculated from DRK isotherm which are 24.693 and 47.093 KJ/mol, where ED<8 proved that the adsorption experiment followed a chemisorption process. So the relative adsorption capacity for metals was in the order Pb< Zn.
Khaled Abd-ElAal Selim,
Rasha Smair El-Tawil,
Nagui Aly Abdel-Khalek,
Heavy Metals Removal Using Surface Modified Glauconite Mineral, International Journal of Mineral Processing and Extractive Metallurgy.
Vol. 1, No. 5,
2016, pp. 46-55.
I. Hsanullah, A. Amir Abbas, Adnan M. Al-Amer, Tahar Laoui, Mohammed J. Al-Marri, Mustafa S. Nasser, Majeda Khraisheh, Muataz Ali Atieh. Heavy metal removal from aqueous solution by advanced carbon nanotubes: Critical review of adsorption applications. Separation and Purification Technology 157 (2016) 141–161.
M. A. Barakat, New trends in removing heavy metals from industrial wastewater, Arabian J. Chem. 4 (2011) 361–377.
F. Fu, Q. Wang, Removal of heavy metal ions from wastewaters: a review, J. Environ. Manage. 92 (2011) 407–418.
Md. Juned K. Ahmed, M. A. Hmaruzzaman, A review on potential usage of industrial waste materials for binding heavy metal ions from aqueous solutions, Journal of Water Process Engineering 10 (2016) 39–47.
M. Jamshidi, M. Ghaedi, K. Dashtian, A. M. Ghaedi, S. Hajati, A. Goudarzi, E. Alipanahpour, Spectrochim. Acta, A: Mol. Biomol. Spectrosc. 153 (2015) 257.
M. Jamshidi, M. Ghaedi, K. Dashtian, S. Hajati, A. Bazrafshan, RSC Adv. 5 (73) (2015) 59522.
F. N. Azad, M. Ghaedi, K. Dashtian, M. Montazerozohori, S. Hajati, E. Alipanahpour, RSC Adv. 5 (75) (2015) 61060.
Radheshyam R. Pawar, Lalhmunsiama, Hari C. Bajaj, Seung-Mok Lee. Activated bentonite as a low-cost adsorbent for the removal of Cu(II) and Pb(II) from aqueous solutions: Batch and column studies, Journal of Industrial and Engineering Chemistry 34 (2016) 213–223.
M. Hassana, H. El-Shallb, Glauconitic clay of El Gidida, Egypt: evaluation and surface modification Applied Clay Science 27 (2004) 219–222.
W. Zou, R. Han, Z. Chen, Z. Jinghua, J. Shi, Colloids Surf., A 279 (2006) 238–246.
S. Wang, W. Gong, X. Liu, Y. Yao, B. Gao, Q. Yue, Sep. Purif. Technol. 58 (2007) 17–23.
M. Abdel Salam, Colloids Surf. A 419 (2013) 69–79.
Abdullah H. Qusti, Removal of chromium(VI) from aqueous solution using manganese oxide nanofibers, Journal of Industrial and Engineering Chemistry 20 (2014) 3394–3399.
ZHU Zhi-liang, MA Hong-mei, ZHANG Rong-hua, GE Yuan-xin, ZHAO Jian-fu, Removal of cadmium using MnO2 loaded D301 resin, Journal of Environmental Sciences 19(2007) 652–656.
K. A. Selim, M. A. Youssef, F. H. Abdel Rahiem and M. S. Hassan, “Dye Removal Using Some Surface Modified Silicate Minerals” International Journal of Mining Science and Technology, Vol. 24, Issue 2, March, 2014, 183-189.
Nagui A. Abdel-Khalek, Rasha S. Z. El-Tawil, K. A. Selim, "Utilization of Phosphatic Minerals as Pollution Sorbents for Removal of Heavy Metals from Aqueous Solutions", Mineral Processing and Extractive Metallurgy, Vol. 119, No. 3, September 2010, pp. 136-141 (6).
Dada, A. O, Olalekan, A. P, Olatunya, A. M., DADA, O, Langmuir, Freundlich, Temkin and Dubinin–Radushkevich Isotherms Studies of Equilibrium Sorption of Zn2+ Unto Phosphoric Acid Modified Rice Husk. Journal of Applied Chemistry (IOSR-JAC) 2012, 3, 1, 38-45.
E. Voudrias, F. Fytianos and E. Bozani: Sorption Description isotherms of Dyes from aqueous solutions and Waste Waters with Different Sorbent materials, Global Nest, Int. J. 2002 4(1),75-83.
N. D. Hutson and R. T. Yang Adsorption. J. Colloid Intern Sci. (2000), pp 189.
Hameed BH. Evaluation of papaya seed as a non-conventional low cost adsorbent for removal of MB. Hazardous materials 2009;162: 939-944.
Itodo A. U.1and Itodo H. U2 Sorption Energies Estimation Using Dubinin-Radushkevich and Temkin Adsorption Isotherms Life Science Journal, Volume 7, Issue 4, 2010.
Itodo AU, Happiness UO, Obaroh IO, Usman A, Audu SS. Temkin, R-D, Langmuir and Freundlich adsorption Isotherms of industrial dye uptake unto H3PO4 catalyzed poultry waste bioadsorbent. Journal of Science and Technology research 2009b; 8(1): 52-56.
Monika J, Garg V, Kadirvelu k. Chromium (VI) removal from aqueous solution, using sunflower stem waste. J. Hazardous materials 2009; 162:365–372.