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COMBUSTION AND LEACHING BEHAVIOR OF TRACE ELEMENTS IN LIGNITE AND COMBUSTION BY-PRODUCTS FROM THE MUĞLA BASIN, SW TURKEY

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M. Fotopoulou, G. Siavalas, H. İnaner, K. Katsanou, N. Lambrakis, K. Christanis
M. Fotopoulou, G. Siavalas, H. İnaner, K. Katsanou, N. Lambrakis, K. Christanis

Abstract


The Muğla Basin is one of the most well-documented coal basins of Anatolia, SW Turkey. Previous studies mainly focused on coal geology, as well as on the environmental impacts from trace elements emitted into the atmosphere during coal combustion. However, the environmental impacts from coal utilization also include groundwater contamination from hazardous trace elements leached from exposed lignite stockpiles or ash disposal dumps. In the present study a comparative assessment of the combustion, as well as the leaching behaviour of trace elements from sixteen lignite, fly ash and bottom ash samples under various pH conditions is attempted. The samples were picked up from three regions in the Muğla Basin, namely, these of Yeniköy, Kemerköy and Yatağan. Proximate and ultimate analyses were performed on all samples. Quantitative mineralogical analysis was carried out using a Rietveld-based full pattern fitting technique. The elements Ag, As, B, Ba, Be, Co, Cr, Cu, Fe, Ga, Hf, Li, Mn, Mo, Ni, Pb, Sr, U, V and Zn were grouped according to their volatility during combustion and their leachability in the various types of samples. The pH of the leaching agent little affected the leaching trends of most elements and the mode of occurrence proved to be the major factor controlling primarily combustion and to a lesser extent leaching. The elements were classified into 7 classes with increasing environmental significance with Mo, Sr and V being the most potentially hazardous trace elements in the Muğla region.

Keywords


bottom ash; fly ash; leachability; lignite; mobility; Muğla; trace elements; Turkey; volatility;

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References


Baba, A., 2002. Geochemical assessment of environmental effects of ash from Yatağan (Muğla-Turkey)

thermal power plant. Water, Air, and Soil Pollution, 144, 3-18.

Baba, A. & Kaya A., 2004. Leaching characteristics of solid wastes from thermal power plants of western

Turkey and comparison of toxicity methodologies. Journal of Environmental Management, 73,

–207.

XLIII, No 5 – 2226

Baba, A., Gurdal, G., Sengunalp, F. & Ozay, O., 2008. Effects of leachant temperature and pH on lechability

of metals from fly ash. A case of study: Can thermal power plant, province of Canakkale, Turkey.

Enviromental Monitoring and Assesment, 139, 287-298.

Bish, D.L. & Post, J.E., 1993. Quantitative mineralogical analysis using the Rietveld full-pattern fitting

method. American Mineralogist, 78, 932–940.

Clarke, L.B. & Sloss, L.L., 1992. Trace elements-emissions from coal combustion and gasification. London,

IEA Coal Research, 111.

Demirak, A., Balci, A., Dalman Ö. & Tüfekci, M., 2005. Chemical investigation of water resources around

the Yatağan thermal power plant of Turkey. Water, Air and Soil pollution 162, 171–181.

Diessel, C.F.K., 1992. Diessel, C.F.K., 1992. Coal-Bearing Depositional Systems. Springer Verlag, Berlin.

pp

Economic Commission for Europe-United Nations (ECE-UN), 1998. International Classification of InSeam

Coals. United Nations, Geneva. 42 pp.

Finkelman, R.B., 1994. Modes of occurrence of potentially hazardous elements in coal: levels of confidence.

Fuel Processing Technology, 39, 21-34.

Finkelman, R.B. & Gross, P.M.K., 1999. The types of data needed for accessing the environmental and

human impacts of coal. International Journal of Coal Geology, 40, 90-101.

Georgakopoulos, A., Filippidis, A., Kassoli-Fournaraki, A., Fernández-Turiel, J.L., Llores, J.F. & Mousty,

F., 2002. Leachability of major and trace elements of fly ash from Ptolemais Power Station, Northern

Greece. Energy Sources, 24, 103-111.

Hesbach, P., Kim, A.G., Abel, A. & Lamey, S., 2009. Serial batch leaching procedure for characterization

of coal fly ash. Enviromental Monitoring Assesment, in press (available online).

İnaner, H. & Nakoman, E., 2005. Properties of lignite deposits in Western Turkey. Abstract Book 57th Annual

Meeting of the ICCP, Patras, 11.

İnaner, H., Nakoman, E. & Karayiğit, A.I., 2008. Coal resource estimation in the Bayir Field, YatağanMuğla,

SW Turkey. Energy Sources, Part A, 30, 1000-1015.

International Committee for Coal Petrology (ICCP), 1993. International Handbook of Coal Petrography,

Supplement, Commission I, 19.

Jones, D.R., 1995. The leaching of major and trace elements from coal ash. In: Environmental Aspects

of Trace Elements in Coal, Swaine, D.J. and Goodarzi, F. (eds). The Netherlands, Kluwer Academic

Publishers, 221-262.

Karayiğit, A.I., Gayer, Ρ. Α., Querol, Χ. & Onacak, Τ., 2000. Contents of major and trace elements in

feed coals from Turkish coal-fired power plants. International Journal of Coal Geology, 44, 169-184.

Meij, R., 1995. The distribution of trace elements during the combustion of coal. In: Environmental Aspects

of Trace Elements in Coal, Swaine, D.J. and Goodarzi, F. (eds). The Netherlands, Kluwer Academic

Publishers, 111-127.

Meij, R. & te Winkel, B.H., 2009. Trace elements in world steam coal and their behaviour in Dutch coalfired

power stations: A review. International Journal of Coal Geology 77, 289-293.

Praharaj, T., Powell, M.A., Hart, B.R. & Tripathy, S., 2002. Leachability of elements from sub-bituminous

coal fly ash from India. Environment International, 27, 609-615.

Querol, X., Alastuey, A., Plana, F., Lopez-Soler, A., Tuncali, E., Toprak, S., Ocakoglu, F., & Koker, A.,

Coal geology and coal quality of the Miocene Mugla basin, southwestern Anatolia, Turkey. International

Journal of Coal Geology, 41, 311-332.

Seredin, V. and Finkelman, R., 2008. Metalliferous coals: A review of the main genetic and geochemical

types. International Journal of Coal Geology, 76, 253-289.

(5) XLIII, No 5 – 2227

Siavalas, G., Zilakou, S., Kalaitzidis, S., Chatziapostolou, A., Bouzinos, A. & Christanis, K., 2007. Trace

element lechability from lignite and combustion by-products under certain pH conditions. Proceedings

of the 10th International Conference on Enviromental Science and Technology, Kos Island, 5-7

September.

Siegel, F.R., 2002. Environmental Geochemistry of Potentially Toxic Metals. Springer-Verlag, BerlinHeidelberg,

Germany, 218 pp.

Vassilev, S.V., Vassileva, C.G., Karayigit, A.I., Bulut, Y., Alastuey, A. & Querol, X., 2005. Phase-mineral

and chemical composition of composite samples from feed coals, bottom ashes and fly ashes at the

Soma power station, Turkey. International Journal of Coal Geology, 61, 35-63.

Vejahati, F., Xu, Z. & Gupta, R., 2009. Trace elements in coal: Associations with coal and minerals and

their behavior during coal utilization – A review. Fuel, in press (available online).

Wang Y., Ren D. & Zhao F., 1999. Comparative leaching for trace elements in raw coal, laboratory ash,

fly ash and bottom ash. International Journal of Coal Geology, 40, 103-108.

Ward, C. R., French, D., Jankowski, J., Dubikova, M., Li, Z. & Riley K. W., 2009. Element mobility from

fresh and long-stored acidic fly ashes associated with an Australian power station. International Journal

of Coal Geology, 80, 224-236.

Yuan, C.G., 2009. Leaching characteristics of metals in fly ash from coal-fired power plant by sequential

extraction procedure. Microchimica Acta, 165, 91-96.


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