The Adsorption of Lead from Aqueous Solutions Using Coal Fly Ash : Effect of Crystallinity
Coal fly ash (CFA) generated by coal-based thermal
power plants is mainly composed of some oxides having high
crystallinity, like quartz and mullite. In this study, the effect of CFA
crystallinity toward lead adsorption capacity was investigated. To get
solid with various crystallinity, the solution of sodium hydroxide
(NaOH) of 1-7 M was used to treat CFA at various temperature and
reflux time. Furthermore, to evaluate the effect of NaOH-treated CFA
with respect to adsorption capacity, the treated CFA were examine as
adsorbent for removing lead in the solution. The result shows that
using NaOH to treat CFA causes crystallinity of quartz and mullite
decrease. At higher NaOH concentration (>3M), in addition the
damage of quartz and mullite crystallinity is followed by crystal
formation called hydroxysodalite. The lower crystalllinity, the higher
adsorption capacity.
[1] C.D. Woolard, K. Petrus, M.V.D. Horst, "The use of a modified fly ash
as an adsorbent for lead", Water SA, vol. 26, no. 4, pp.531 - 536, 2000.
[2] D. Wen, Y.S. Ho, X.Tang, "Comparative sorption kinetics studies of
ammonium onto zeolite", J.Hazard. Mater, vol. B 113, pp. 252-256,
2006.
[3] J.A. Hefne, W.K. Mekhemer, N.M. Alandis, O.A. Aldayel, T. Alajyan,
"Kinetic and Thermodynamic study of the Adsorption of Pb(II) from
Aqueous solution to The Natural and Treated Bentonite", International
Journal of Physical Sciences, vol. 3, pp. 281-288, 2008.
[4] J.Y. Hwang, X. Sun, Z. Li, "Unburned Carbon from Fly Ash for
Mercury Adsorption : I. Separation and Characterization of Unburned
Carbon", Journal of Minerals and Materials Characterization &
Engineering, vol 1, no. 1, pp. 39-60, 2002.
[5] K.H. Sugiyarto, Kimia Anorganik I (Unpublished Book style).
Yogyakarta : Jurusan Pendidikan Kimia Universitas Negeri Yogyakarta
, 2000.
[6] M. Dogan, Y. Ozdemir, M. Alkan, "Adsorption Kinetics and
Mechanism of Cationic Methyl Violet and Methylene Blue Dyes onto
Sepiolite", Dyes and Pigments, vol.75, pp. 701-713, 2007.
[7] P. Ricou, V. Hequet, I. Lecuyer, P. Le Cloirec, "Removal of Cu2+ and
Zn2+ in Aqueous Solutions by Sorption onto Fly Ash and Fly Ash
Mixtures (Published Conference Proceedings style)," in Proc.
International Ash Utilization Symposium, University of Kentucky,
1999.
[8] Schneider and Komarneni, Mullit (Book style). Wiley-VCH, 2005.
[9] Sukandarrumidi, Batubara dan Pemanfaatannya (Book style).
Yogyakarta : Gadjah Mada University Press, 2006.
[10] Sutarno, "Sintesis Faujasite dari Abu Layang Batubara : Pengaruh
Refluks dan penggerusan Abu Layang Batubara terhadap Kristalinitas
Faujasite," Jurnal Matematika dan Sains, vol.9 no.3, pp.285-290, 2004.
[11] Y.S. Ho, G. McKay, "Batch Lead (II) Removal from Aqueous Solution
by Peat : Equilibrium and Kinetics", Trans IChemE, vol. 77 part B, pp.
165-173, 1999.
[12] Y.S. Ho, "Review of Second-Order Models for Adsorption Systems,"
Journal of Hazardous Materials, B136, pp. 681-689, 2006.
[1] C.D. Woolard, K. Petrus, M.V.D. Horst, "The use of a modified fly ash
as an adsorbent for lead", Water SA, vol. 26, no. 4, pp.531 - 536, 2000.
[2] D. Wen, Y.S. Ho, X.Tang, "Comparative sorption kinetics studies of
ammonium onto zeolite", J.Hazard. Mater, vol. B 113, pp. 252-256,
2006.
[3] J.A. Hefne, W.K. Mekhemer, N.M. Alandis, O.A. Aldayel, T. Alajyan,
"Kinetic and Thermodynamic study of the Adsorption of Pb(II) from
Aqueous solution to The Natural and Treated Bentonite", International
Journal of Physical Sciences, vol. 3, pp. 281-288, 2008.
[4] J.Y. Hwang, X. Sun, Z. Li, "Unburned Carbon from Fly Ash for
Mercury Adsorption : I. Separation and Characterization of Unburned
Carbon", Journal of Minerals and Materials Characterization &
Engineering, vol 1, no. 1, pp. 39-60, 2002.
[5] K.H. Sugiyarto, Kimia Anorganik I (Unpublished Book style).
Yogyakarta : Jurusan Pendidikan Kimia Universitas Negeri Yogyakarta
, 2000.
[6] M. Dogan, Y. Ozdemir, M. Alkan, "Adsorption Kinetics and
Mechanism of Cationic Methyl Violet and Methylene Blue Dyes onto
Sepiolite", Dyes and Pigments, vol.75, pp. 701-713, 2007.
[7] P. Ricou, V. Hequet, I. Lecuyer, P. Le Cloirec, "Removal of Cu2+ and
Zn2+ in Aqueous Solutions by Sorption onto Fly Ash and Fly Ash
Mixtures (Published Conference Proceedings style)," in Proc.
International Ash Utilization Symposium, University of Kentucky,
1999.
[8] Schneider and Komarneni, Mullit (Book style). Wiley-VCH, 2005.
[9] Sukandarrumidi, Batubara dan Pemanfaatannya (Book style).
Yogyakarta : Gadjah Mada University Press, 2006.
[10] Sutarno, "Sintesis Faujasite dari Abu Layang Batubara : Pengaruh
Refluks dan penggerusan Abu Layang Batubara terhadap Kristalinitas
Faujasite," Jurnal Matematika dan Sains, vol.9 no.3, pp.285-290, 2004.
[11] Y.S. Ho, G. McKay, "Batch Lead (II) Removal from Aqueous Solution
by Peat : Equilibrium and Kinetics", Trans IChemE, vol. 77 part B, pp.
165-173, 1999.
[12] Y.S. Ho, "Review of Second-Order Models for Adsorption Systems,"
Journal of Hazardous Materials, B136, pp. 681-689, 2006.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:60913", author = "Widi Astuti and Agus Prasetya and Endang Tri Wahyuni and I Made Bendiyasa", title = "The Adsorption of Lead from Aqueous Solutions Using Coal Fly Ash : Effect of Crystallinity", abstract = "Coal fly ash (CFA) generated by coal-based thermal
power plants is mainly composed of some oxides having high
crystallinity, like quartz and mullite. In this study, the effect of CFA
crystallinity toward lead adsorption capacity was investigated. To get
solid with various crystallinity, the solution of sodium hydroxide
(NaOH) of 1-7 M was used to treat CFA at various temperature and
reflux time. Furthermore, to evaluate the effect of NaOH-treated CFA
with respect to adsorption capacity, the treated CFA were examine as
adsorbent for removing lead in the solution. The result shows that
using NaOH to treat CFA causes crystallinity of quartz and mullite
decrease. At higher NaOH concentration (>3M), in addition the
damage of quartz and mullite crystallinity is followed by crystal
formation called hydroxysodalite. The lower crystalllinity, the higher
adsorption capacity.", keywords = "Coal fly ash, crystallinity, lead, adsorption capacity", volume = "5", number = "6", pages = "509-6", }