Recovery of trace elements with uranium and thorium from yatagan thermal power plant fly ashes by leaching

• Autorzy: Kursun I. , Ozkan S. G. , Kilic A. , Terzi M. , Enkhtaivan N.

Identyfikatory

DOI

10.5277/ppmp160206

• Języki publikacji: EN

Abstrakty

EN

In this paper, characterization of fly ashes obtained from the Yatagan Thermal Power plant, Mugla, Turkey was performed in order to determine their radioactive element contents, especially uranium and thorium. The representative fly ash samples were subjected to hydrochloric acid (HCl) leaching considering solid concentration, acid dosage, leaching time and temperature in order to reach certain uranium and thorium recoveries. The obtained results showed that the optimum conditions for leaching tests were: 30% solid concentration, 2.36 mmol/dm3 HCl addition, 240 min leaching time and 40 oC temperature. Dissolution efficiencies for uranium and thorium from the Yatagan Thermal Power Plant fly ashes were calculated as 90.12 and 81.18%, respectively.

Słowa kluczowe

EN

uranium; thorium; leaching; fly ash

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2016
• Tom: Vol. 52, iss. 2
• Strony: 588--596
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Kursun I.

• Istanbul University, Faculty of Engineering, Department of Mining Engineering, Avcilar, 34320, Istanbul, Turkey

autor

Ozkan S. G.

• Istanbul University, Faculty of Engineering, Department of Mining Engineering, Avcilar, 34320, Istanbul, Turkey

autor

Kilic A.

• Istanbul University, Faculty of Engineering, Department of Mining Engineering, Avcilar, 34320, Istanbul, Turkey

autor

Terzi M.

• Istanbul University, Faculty of Engineering, Department of Mining Engineering, Avcilar, 34320, Istanbul, Turkey

autor

Enkhtaivan N.

• Istanbul University, Faculty of Engineering, Department of Mining Engineering, Avcilar, 34320, Istanbul, Turkey

Bibliografia

• AHMARUZZAMAN, M., 2010, A review on the utilization of fly ash, Progress in Energy and Combustion Science, 36(3), 327-363.
• AKBULUT, S., 2005, Thermal power plants in Turkey and their environmental effects, Geography Magazine, 1(21), 193-203.
• ARORA, V., KUMAR, S., 2006, Analytical evaluation of potential pollution from trace elements in various of washed coal of Kedla and Rajrappa Washeries, Journal of the Institution of Engineers (India), 3(5), 361-365.
• CIOROIANU, T.M., BUNUS, F.T., GUTA, E., FILIP, D., FILIP, G., 2005, Uranium recovery in Romania from alternative sources and impact on environment, Developments in Uranium Resources, Production, Demand and the Environment, Proceedings of a technical committee meeting held in Vienna, 119-126.
• DAVIDSON, C.F., PONSFORD, D.R.A., 1954, On the occurrence of uranium in coals, Min. Mag., 91, 265-273.
• ENKHTAIVAN, N., 2013, Investigation of trace elements content of thermal power plant ashes, MSc. Thesis, Istanbul University, Istanbul.
• FANG, Z., GESSER, H.D., 1996, Recovery of gallium from coal fly ash, Hydrometallurgy, 41(2-3), 187-200.
• FELEKOGLU, B., Utilisation of Turkish fly ashes in cost effective HVFA concrete production, Fuel, 85(12-13), 1944-1949.
• FOUAD, H.K., 2010, Determination of hexavalent and tetravalent uranium in phosphate ores through hydrochloric acid selective leaching, Journal of Radioanalytical and Nuclear Chemistry, 285 (2), 193-197.
• KURSUN I., OZKAN S. G., TERZI M., ENKHTAIVAN N., DEMIR I., 2014, Characterization of the fly ashes of Yatagan and Soma Thermal Power Plants, Proceedings of 13th Coal Congress of Turkey, 309-320.
• MORIMOTO, T., BANBA, S., ISHIKAWA, K., SHINODA, Y., HASHIMOTO, T., 2003, Alpha-recoil nuclides in acid leaching experiments on radioactive ores, Radioisotopes, 52(6), 269-276.
• MUDD, G., 1998, An environmental critique of in situ leach mining: The case against uranium solution mining, A Research Report for Friends of the Earth (Fitzroy) with The Australian Conservation Foundation.
• OZDEMIR O., CELIK M., 2002, Characterization and recovery of lignitic fly-ash by-products from Tuncbilek Power Station, Canadian Metallurgical Quarterly, 41, 143-150.
• PHILLIPS, C.R., SEARS, P.L., POON, Y.C., 1982, The leaching of uranium ore with emphasis on the fate of radium, Energy Sources, 6(3), 215-243.
• SCHWANDORF, H., 2001, Uranium graded coals in Europe, Glückauf magazine.
• SIDDIQUE, R., 2004, Performance characteristics of high-volume Class F fly ash concrete, Cement and Concrete Research, 34(3), 487-493.
• TURKMENOGLU, M., 2010, Investigation of the leach characteristics and environmental effects of fly ashes, Science and Engineering Sciences Journal of Cukurova University, 24(2), 30-39.
• YUKSEK, E., 2006, Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in coal-fired power plants, MSc. Thesis, Institute of Science and Technology of Ege University.
• YUSOFF, M.S.M., 2002, Uranium and Thorium Leaching of Malaysian Zircon at Various Heat Treatment Temperatures, Jurnal Sains Nuklear Malaysia, 20(1-2), 48- 55.