A Kinetic Study on the Adsorption of Cd(II) and Zn(II) Ions from Aqueous Solutions on Zeolite NaA
The present paper reports the removal of Cd(II) and
Zn(II) ions using synthetic Zeolit NaA. The adsorption capacity of
the sorbent (Zeolite NaA) strongly depends on simultaneous or not
simultaneous (concurrent) presence of Cd(II) and Zn(II) in the
sorbate. When Cd(II) and Zn(II) are present simultaneously
(concurrently) in the sorbate, Zn(II) ions were sorbed at higher rate.
Equilibrium data fitted Langmuir, Freundlich and Tempkin isotherms
well. The applicability of the isotherm equation to describe the
adsorption process was judged by the correlation coefficients R2. The
Langmuir model yielded the best fit with R2 values equal to or higher
than 0.970, as compared to the Freundlich and Tempkin models. The
fact that 1/n values range from 0.322 to 0.755 indicates that the
adsorption of Cd(II) and Zn(II) ions from aqueous solutions also
favored by the Freundlich model.
[1] M. J. Yabe, E. Oliveira "Heavy metals removal in industrial effluents by
sequential adsorbent treatment", Adv. Env. Res, 7, 2003, pp. 263-272.
[2] K. K. Panday, G. Prasad, V. N. Singh "Copper (II) removal from
aqueous solutions by fly ash", Wat. Res. Vol.19, 1985, pp.869.
[3] G. Blanchard, M. Maunaye, G. Martin "Removal of heavy metals from
waters by means of natural zeolites", Water Res. 18,1984, pp.1501-
1507.
[4] Y.S.Ho "Second-order kinetic model for the sorption of cadmium onto
tree fern: A comparison of linear and non-linear methods", Water Res.
40(1), 2006, pp. 119-125.
[5] H.J.M. Bowen, The Environmental Chemistry of the Elements,
Academic Press, London, 1979, pp 109-111.
[6] Curkovic S.; Metal ion exchange by natural and modified zeolites; Wat.
Res., vol.31, 1997, pp.1379-1382.
[7] D. Georgiev, B. Bogdanov, Y. Hristov, I. Markovska and I. Petrov
ÔÇ×Synthesis of NaA zeolite from natural kaolinite", 8 th International
conference on the occurrence, properties and utilization of natural
zeolites, 10-18 July 2010, Sofia, pp. 95-96.
[8] D. Georgiev, B. Bogdanov, Y. Hristov, I. Markovska, Iv.Petrov "NaA
zeolite synthesized in fluidized bed reactor", 15th International
Metallurgy & Materials Congress (IMMC 2010), Istambul, November
11th- 13th,2010, p.210-216.
[9] F. Scholz, Electroanalytical Methods, Guise to Experiments and
Applications, Springer, Moskow, 2006.
[10] B. Biskup, B. Suboti "Kinetic analysis of the exchange processes
between sodium ions from zeolite A and cadmium, copper and nickel
ions from solutions", Separation and Purification Technology, vol. 37,
2004, pp. 17-31.
[11] S. Singh et. al., "Adsorption Behaviour of Ni (II) from Water onto
Zeolite X: Kinetics and Equilibrium Studies", Proceedings of the World
Congress on Engineering and Computer Science 2008 WCECS 2008,
October 22 - 24, 2008, San Francisco, USA, ISBN: 978-988-98671-0-2,
pp.199-206.
[12] H. Dyer et-al, "The plotting and interpretation of ion exchange
isotherms in charcoal systems", Sep. Sci. Technol., voL16, 1981, pp.
l73-183.
[13] S.R. Shukla, Roshan S.Pai, "Adsorption of Cu(II), Ni (II) and Zn(II) on
dye loaded groundnut shells and sawdust", Separation and purification
Technology, Vol. 43, 2005, pp. 1-8.
[14] J. Febrianto, A.N. Kosasiha, J. Sunarsob, Y, N. Jua, "Equilibrium and
kinetic studies in adsorption of heavy metals using biosorbent: A
summary of recent studies",J Hazard Mater, 162, 2009, pp. 616-645.
[1] M. J. Yabe, E. Oliveira "Heavy metals removal in industrial effluents by
sequential adsorbent treatment", Adv. Env. Res, 7, 2003, pp. 263-272.
[2] K. K. Panday, G. Prasad, V. N. Singh "Copper (II) removal from
aqueous solutions by fly ash", Wat. Res. Vol.19, 1985, pp.869.
[3] G. Blanchard, M. Maunaye, G. Martin "Removal of heavy metals from
waters by means of natural zeolites", Water Res. 18,1984, pp.1501-
1507.
[4] Y.S.Ho "Second-order kinetic model for the sorption of cadmium onto
tree fern: A comparison of linear and non-linear methods", Water Res.
40(1), 2006, pp. 119-125.
[5] H.J.M. Bowen, The Environmental Chemistry of the Elements,
Academic Press, London, 1979, pp 109-111.
[6] Curkovic S.; Metal ion exchange by natural and modified zeolites; Wat.
Res., vol.31, 1997, pp.1379-1382.
[7] D. Georgiev, B. Bogdanov, Y. Hristov, I. Markovska and I. Petrov
ÔÇ×Synthesis of NaA zeolite from natural kaolinite", 8 th International
conference on the occurrence, properties and utilization of natural
zeolites, 10-18 July 2010, Sofia, pp. 95-96.
[8] D. Georgiev, B. Bogdanov, Y. Hristov, I. Markovska, Iv.Petrov "NaA
zeolite synthesized in fluidized bed reactor", 15th International
Metallurgy & Materials Congress (IMMC 2010), Istambul, November
11th- 13th,2010, p.210-216.
[9] F. Scholz, Electroanalytical Methods, Guise to Experiments and
Applications, Springer, Moskow, 2006.
[10] B. Biskup, B. Suboti "Kinetic analysis of the exchange processes
between sodium ions from zeolite A and cadmium, copper and nickel
ions from solutions", Separation and Purification Technology, vol. 37,
2004, pp. 17-31.
[11] S. Singh et. al., "Adsorption Behaviour of Ni (II) from Water onto
Zeolite X: Kinetics and Equilibrium Studies", Proceedings of the World
Congress on Engineering and Computer Science 2008 WCECS 2008,
October 22 - 24, 2008, San Francisco, USA, ISBN: 978-988-98671-0-2,
pp.199-206.
[12] H. Dyer et-al, "The plotting and interpretation of ion exchange
isotherms in charcoal systems", Sep. Sci. Technol., voL16, 1981, pp.
l73-183.
[13] S.R. Shukla, Roshan S.Pai, "Adsorption of Cu(II), Ni (II) and Zn(II) on
dye loaded groundnut shells and sawdust", Separation and purification
Technology, Vol. 43, 2005, pp. 1-8.
[14] J. Febrianto, A.N. Kosasiha, J. Sunarsob, Y, N. Jua, "Equilibrium and
kinetic studies in adsorption of heavy metals using biosorbent: A
summary of recent studies",J Hazard Mater, 162, 2009, pp. 616-645.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:53124", author = "Dimitar Georgiev and Bogdan Bogdanov and Irena Markovska and Yancho Hristov and Dencho Stanev", title = "A Kinetic Study on the Adsorption of Cd(II) and Zn(II) Ions from Aqueous Solutions on Zeolite NaA", abstract = "The present paper reports the removal of Cd(II) and
Zn(II) ions using synthetic Zeolit NaA. The adsorption capacity of
the sorbent (Zeolite NaA) strongly depends on simultaneous or not
simultaneous (concurrent) presence of Cd(II) and Zn(II) in the
sorbate. When Cd(II) and Zn(II) are present simultaneously
(concurrently) in the sorbate, Zn(II) ions were sorbed at higher rate.
Equilibrium data fitted Langmuir, Freundlich and Tempkin isotherms
well. The applicability of the isotherm equation to describe the
adsorption process was judged by the correlation coefficients R2. The
Langmuir model yielded the best fit with R2 values equal to or higher
than 0.970, as compared to the Freundlich and Tempkin models. The
fact that 1/n values range from 0.322 to 0.755 indicates that the
adsorption of Cd(II) and Zn(II) ions from aqueous solutions also
favored by the Freundlich model.", keywords = "Adsorption, adsorption capacity, kinetic sorption,
Zeolite NaA", volume = "5", number = "11", pages = "949-4", }