Comparison Study on Characterization of Various Fly Ashes for Heavy Metal Adsorption

Fly ash is a waste material of coal firing thermal
plants that is released from thermal power plants. It was defined as
very fine particles that are drifted upward which are taken up by the
flue gases. The emerging amount of fly ash in the world is
approximately 600 million tons per year. In our country, it is
expected that will be occurred 50 million tons of waste ash per year
until 2020. The fly ashes can be evaluated by using as adsorbent
material. The purpose of this study is to investigate the possibility of
use of various fly ashes (Tuncbilek, Catalagzi, Orhaneli) like lowcost
adsorbents for heavy metal adsorption. First of all, fly ashes
were characterized. For this purpose; analyses such as XRD, XRF,
SEM and FT-IR were performed.

• E. Moroydor Derun
• N. Tugrul
• N. Baran Acarali
• A. S. Kipcak
• S. Piskin

• Adsorbent
• fly ash
• heavy metal
• waste.

[1] A. Bilodeau, and V. M. Malhotra, “High- volume fly ash system.
Concrete solution for sustainable development”, ACI Mater.J., vol. 97,
pp. 41-49, 2000.
[2] P. K. Deb, A. J. Rubin, A. W. Launder, and K. H. Mancy, “Removal of
COD from wastewater by fly ash”, Proceedings of 21st. Ind. Waste
Conf., Purdue Univ., Indiana, Ext.Ser., vol. 121, 1967, pp. 848-860.
[3] P. Cheremisinoff, “Coal fly ash: power plant waste or by-product”,
Power Eng., vol. 92, pp. 40-41, 1988.
[4] M. B. Vandenbusch, and N. J. Sell, “Fly ash as a sorbent for the removal
of biologically resistant organic matter”, Resour. Conserv. Recy., vol. 6,
pp. 95-116, 1992.
[5] H. Polat, and D. Erdogan, “Heavy metal removal from waste waters by
ion flotation”, J. Hazard. Mater., vol. 148, pp. 267–273, 2007.
[6] M. J. González-Muñoza, M. A. Rodrígueza, S. Luquea, and J. R.
Álvarez, “Recovery of heavy metals from metal industry waste waters by
chemical precipitation and nanofiltration”, Desalination, vol. 200, pp.
742–744, 2006.
[7] http://www.waternet.co.za/we/docs/vernon_removal_of_mercury_and_le
ad_ions.pdf
[8] http://www.scribd.com/doc/40053128/NaBH4-ulexite