Yazarlar |
Prof. Dr. Şeref TURHAN
Kastamonu Üniversitesi, Türkiye |
Elif Gören
|
Ahmet Mk Garad
|
Aydan Altıkulaç
Muğla Sıtkı Koçman Üniversitesi, Türkiye |
Prof. Dr. Aslı KURNAZ
Kastamonu Üniversitesi, Türkiye |
Doç. Dr. Celalettin DURAN
Kastamonu Üniversitesi, Türkiye |
Prof. Dr. Aybaba HANÇERLİOĞULLARI
Kastamonu Üniversitesi, Türkiye |
V Altunal
|
V Güçkan
|
Adnan Özdemir
|
Özet |
Lignite coal (LC) is a key energy source for electricity generation in Turkey. During lignite burning, huge amounts of fly ash (FA), bottom ash and slag are produced as by-products which contain radionuclides in the natural radioactive series of uranium and thorium, and radioactive potassium. These radionuclides may lead to radiological exposure of workers and the public and cause environmental problems. Therefore, finding diverse uses for the by-products in the construction sector and earthwork applications has considerable economic and environmental importance. In this study, the activity concentrations of 226Ra, 232Th and 40K in and radon emanating power (EP) and radon mass exhalation rate (EXRM) from LC, slag and FA obtained from the Kangal lignite-burning power plant with a power of 457 MWe were measured using gamma-ray spectroscopy. The major chemical components (SiO2, Al2O3, Fe2O3, CaO and MgO) of fly ash samples were analysed using an energy dispersive X-ray fluorescence spectrometer. The annual effective doses received by workers and members of the public were estimated using different scenarios specified in Radiation protection 122. The average activity concentrations of 226Ra, 232Th and 40K in LC, slag and FA samples were 187±21, 16±1 and 99±9 Bq kg-1, 620±18, 41±2 and 330±13 Bq kg-1, and 937±30, 38±2 and 272±17 Bq kg-1, respectively. The average values of EP and EXRM of the lignite, slag and FA samples were 8 %, 7 % and 10 %, and 0.1, 0.3 and 0.7 Bq kg-1 h-1, respectively. The highest average of the total annual effective dose is estimated at 153 μSv for members of the public and 74 μSv for workers, lower than the recommended annual limit of 1000 μSv. |
Anahtar Kelimeler |
annual effective dose | Coal | fly ash | major oxides | radioactivity | radon emanating power | radon mass exhalation rate | slag |
Makale Türü | Özgün Makale |
Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
Dergi Adı | Radiochimica Acta |
Dergi ISSN | 0033-8230 |
Dergi Tarandığı Indeksler | SCI-Expanded |
Dergi Grubu | Q2 |
Makale Dili | İngilizce |
Basım Tarihi | 01-2018 |
Cilt No | 106 |
Sayı | 7 |
Sayfalar | 611 / 621 |
Doi Numarası | 10.1515/ract-2017-2863 |