Heavy Metals Removal Using Surface Modified Glauconite Mineral

Khaled Abd-ElAal Selim; Rasha Smair El-Tawil; Nagui Aly Abdel-Khalek

doi:doi:10.11648/j.ijmpem.20160105.11

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Heavy Metals Removal Using Surface Modified Glauconite Mineral

Khaled Abd-ElAal Selim, Rasha Smair El-Tawil, Nagui Aly Abdel-Khalek

Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 1, Issue 5)

Received: 2 September 2016 Accepted: 20 October 2016 Published: 23 November 2016

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Abstract

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 (Q_o) 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.

Published in	International Journal of Mineral Processing and Extractive Metallurgy (Volume 1, Issue 5)
DOI	10.11648/j.ijmpem.20160105.11
Page(s)	46-55
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Adsorption, Heavy Metals, Surface Modification, Glauconite, Equilibrium Isotherms

References

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[16]	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).
[17]	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.
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APA Style

Khaled Abd-ElAal Selim, Rasha Smair El-Tawil, Nagui Aly Abdel-Khalek. (2016). Heavy Metals Removal Using Surface Modified Glauconite Mineral. International Journal of Mineral Processing and Extractive Metallurgy, 1(5), 46-55. https://doi.org/10.11648/j.ijmpem.20160105.11

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ACS Style

Khaled Abd-ElAal Selim; Rasha Smair El-Tawil; Nagui Aly Abdel-Khalek. Heavy Metals Removal Using Surface Modified Glauconite Mineral. Int. J. Miner. Process. Extr. Metall. 2016, 1(5), 46-55. doi: 10.11648/j.ijmpem.20160105.11

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AMA Style

Khaled Abd-ElAal Selim, Rasha Smair El-Tawil, Nagui Aly Abdel-Khalek. Heavy Metals Removal Using Surface Modified Glauconite Mineral. Int J Miner Process Extr Metall. 2016;1(5):46-55. doi: 10.11648/j.ijmpem.20160105.11

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@article{10.11648/j.ijmpem.20160105.11,
  author = {Khaled Abd-ElAal Selim and Rasha Smair El-Tawil and Nagui Aly Abdel-Khalek},
  title = {Heavy Metals Removal Using Surface Modified Glauconite Mineral},
  journal = {International Journal of Mineral Processing and Extractive Metallurgy},
  volume = {1},
  number = {5},
  pages = {46-55},
  doi = {10.11648/j.ijmpem.20160105.11},
  url = {https://doi.org/10.11648/j.ijmpem.20160105.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20160105.11},
  abstract = {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.},
 year = {2016}
}

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TY  - JOUR
T1  - Heavy Metals Removal Using Surface Modified Glauconite Mineral
AU  - Khaled Abd-ElAal Selim
AU  - Rasha Smair El-Tawil
AU  - Nagui Aly Abdel-Khalek
Y1  - 2016/11/23
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmpem.20160105.11
DO  - 10.11648/j.ijmpem.20160105.11
T2  - International Journal of Mineral Processing and Extractive Metallurgy
JF  - International Journal of Mineral Processing and Extractive Metallurgy
JO  - International Journal of Mineral Processing and Extractive Metallurgy
SP  - 46
EP  - 55
PB  - Science Publishing Group
SN  - 2575-1859
UR  - https://doi.org/10.11648/j.ijmpem.20160105.11
AB  - 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.
VL  - 1
IS  - 5
ER  -

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Author Information

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

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APA Style

Khaled Abd-ElAal Selim, Rasha Smair El-Tawil, Nagui Aly Abdel-Khalek. (2016). Heavy Metals Removal Using Surface Modified Glauconite Mineral. International Journal of Mineral Processing and Extractive Metallurgy, 1(5), 46-55. https://doi.org/10.11648/j.ijmpem.20160105.11

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ACS Style

Khaled Abd-ElAal Selim; Rasha Smair El-Tawil; Nagui Aly Abdel-Khalek. Heavy Metals Removal Using Surface Modified Glauconite Mineral. Int. J. Miner. Process. Extr. Metall. 2016, 1(5), 46-55. doi: 10.11648/j.ijmpem.20160105.11

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AMA Style

Khaled Abd-ElAal Selim, Rasha Smair El-Tawil, Nagui Aly Abdel-Khalek. Heavy Metals Removal Using Surface Modified Glauconite Mineral. Int J Miner Process Extr Metall. 2016;1(5):46-55. doi: 10.11648/j.ijmpem.20160105.11

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@article{10.11648/j.ijmpem.20160105.11,
  author = {Khaled Abd-ElAal Selim and Rasha Smair El-Tawil and Nagui Aly Abdel-Khalek},
  title = {Heavy Metals Removal Using Surface Modified Glauconite Mineral},
  journal = {International Journal of Mineral Processing and Extractive Metallurgy},
  volume = {1},
  number = {5},
  pages = {46-55},
  doi = {10.11648/j.ijmpem.20160105.11},
  url = {https://doi.org/10.11648/j.ijmpem.20160105.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20160105.11},
  abstract = {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.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Heavy Metals Removal Using Surface Modified Glauconite Mineral
AU  - Khaled Abd-ElAal Selim
AU  - Rasha Smair El-Tawil
AU  - Nagui Aly Abdel-Khalek
Y1  - 2016/11/23
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmpem.20160105.11
DO  - 10.11648/j.ijmpem.20160105.11
T2  - International Journal of Mineral Processing and Extractive Metallurgy
JF  - International Journal of Mineral Processing and Extractive Metallurgy
JO  - International Journal of Mineral Processing and Extractive Metallurgy
SP  - 46
EP  - 55
PB  - Science Publishing Group
SN  - 2575-1859
UR  - https://doi.org/10.11648/j.ijmpem.20160105.11
AB  - 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.
VL  - 1
IS  - 5
ER  -

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