Radiation impact of ashes from the combustion of bottom sediments in a municipal sewage treatment plant, Czajka, located in Warsaw, Poland

• Autorzy: Neffe Sławomir , Lemańska Joanna , Fliszkiewicz Bartłomiej , Jednorog Slawomir

Identyfikatory

DOI

10.2478/nuka-2024-0015

• Konferencja: International Conference on Development and Applications of Nuclear Technologies NUTECH 2023 (22-24 September 2023 ; Krakow, Poland)
• Języki publikacji: EN

Abstrakty

EN

The aim of the present research was to assess the radiological importance of the fly ashes generated from the incineration of sludge from the “Czajka” sewage treatment plant located in Warsaw, Poland. The γ-spectrometry technique was employed for their radiometry. The high purity germanium (HPGe) detector was mathematically energy-efficiency calibrated. The ash samples were measured two times, i.e., after 24 days and after 3 months of storage. Storage was supposed to provide a radioactive equilibrium. Radionuclides from three natural decay series, i.e., uranium–radium, uranium–actinium, and thorium, were detected in the ash samples. Apart from these, 40K, 137Cs, and 7 Be were also detected. The indicated levels of radionuclides do not produce radioactive hazards, regardless of the method used for further management.

Słowa kluczowe

EN

fly ashes; radioactivity; sewage; sludge combustion

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2024
• Tom: Vol. 69, No. 2
• Strony: 107--111
• Opis fizyczny: Biblioghr. 8 poz., rys.

Twórcy

autor

Neffe Sławomir

• Military University of Technology Warsaw, Poland

• https://orcid.org/0000-0002-2790-6449

autor

Lemańska Joanna

• Central Laboratory for Radiological Protection Konwaliowa 7 St., 03-194 Warsaw, Poland

• https://orcid.org/0009-0002-4699-1586

autor

Fliszkiewicz Bartłomiej

• Military University of Technology Warsaw, Poland

• https://orcid.org/0000-0002-1339-5879

autor

Jednorog Slawomir

• Central Laboratory for Radiological Protection Konwaliowa 7 St., 03-194 Warsaw, Poland

• https://orcid.org/0000-0003-4996-6917

Bibliografia

• 1. Adsley, I., Backhouse, J. S., Nichols, A. L., & Toole, J. (1998). U-238 decay chain: Resolution of observed anomalies in the measured secular equilibrium between Th-234 and daughter Pa-234m. Appl. Radiat. Isot., 49(9/11), 1337–1344. https://doi.org/10.1016/S0969-8043 (97)10070-7.
• 2. Singhal, R. K., Basu, H., Saha, S., Kumar, A., & Pimple, M. V. (2016). Estimation of 232Th concentration in environmental matrices by tracking activity of major daughter products (212Bi, 212Pb and 228Ac) with time in a hermetically sealed container. J. Environ. Anal. Chem., 3(4), 1000186. DOI: 10.4172/2380-2391.1000186.
• 3. De Corte, F., Umans, H., Vandenberghe, D., De Wispelaere, A., & Van Den Haute, P. (2005). Direct gamma-spectrometric measurement of the 226Ra 186.2keV line for detecting 238U/226Ra disequilibrium in determining the environmental dose rate for the luminescence dating of sediments. Appl. Radiat. Isot., 63(5/6), 589–598. https://doi.org/10.1016/j.apradiso.2005.05.008.
• 4. Federal Ministry for the Environment, Nature Conservation and Consumer Protection. (2018). Procedures manual for monitoring of radioactive substances in the environment and of external radiation. Federal Office for Radiation Protection (BfS) & PhysikalischTechnische Bundesanstalt (PTB).
• 5. Decay Radiation Database. (2023, February). NuDat3. [computer software]. National Nuclear Data Center. Retrieved February 21, 2023, from https://www.nndc.bnl.gov/nudat3/help/dehelp.jsp.
• 6. Jednorog, S., Klis, B., & Szewczak, K. (2024) Integrated absolute full energy peak efficiency: A measure of photon registration efficiency. Appl. Radiat. Isot., 206, 111237. https://doi.org/10.1016/j.apradiso.2024.111237.
• 7. Jednorog, S., Szydlowski, A., Scholz, M., Paduch, M., & Bienkowska, B. (2012). Preliminary determination of angular distribution of neutrons emitted from PF-1000 facility by indium activation. Nukleonika, 57(4), 563–568.
• 8. Central Laboratory for Radiological Protection. (2021). Annual Report 2020. Warsaw: CLRP.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).