Artículo
Radiometrical and physico-chemical characterisation of contaminated glass waste from a glass dump in Sweden
Autor/es | Mutafela, Richard N.
Mantero Cabrera, Juan Jani, Yahya Thomas, Rimon Holm, Elis Hogland, William |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2020-02 |
Fecha de depósito | 2024-02-01 |
Publicado en |
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Resumen | Around former glass factories in south eastern Sweden, there are dozens of dumps whose radioactivity and physico-chemical properties were not investigated previously. Thus, radiometric and physico-chemical characteristics ... Around former glass factories in south eastern Sweden, there are dozens of dumps whose radioactivity and physico-chemical properties were not investigated previously. Thus, radiometric and physico-chemical characteristics of waste at Madesjö glass dump were studied to evaluate pre-recycling storage requirements and potential radiological and environmental risks. The material was sieved, hand-sorted, leached and scanned with X-Ray Fluorescence (XRF). External dose rates and activity concentrations of Naturally Occurring Radioactive Materials from 238U, 232Th series and 40K were also measured coupled with a radiological risk assessment. Results showed that the waste was 95% glass and dominated by fine fractions (<11.3 mm) at 43.6%. The fine fraction had pH 7.8, 2.6% moisture content, 123 mg kg−1 Total Dissolved Solids, 37.2 mg kg−1 Dissolved Organic Carbon and 10.5 mg kg−1 fluorides. Compared with Swedish EPA guidelines, the elements As, Cd, Pb and Zn were in hazardous concentrations while Pb leached more than the limits for inert and non-hazardous wastes. With 40K activity concentration up to 3000 Bq kg−1, enhanced external dose rates of 40K were established (0.20 μSv h−1) although no radiological risk was found since both External Hazard Index (Hex) and Gamma Index (Iγ) were <1. The glass dump needs remediation and storage of the waste materials under a safe hazardous waste class ‘Bank Account’ storage cell as a secondary resource for potential future recycling. |
Agencias financiadoras | Swedish Radiation Safety Authority Swedish Governmental Agency for Innovation Systems, Vinnova |
Identificador del proyecto | SSM 2017-1074
2016-05279 |
Cita | Mutafela, R.N., Mantero Cabrera, J., Jani, Y., Thomas, R., Holm, E. y Hogland, W. (2020). Radiometrical and physico-chemical characterisation of contaminated glass waste from a glass dump in Sweden. Chemosphere, 241 (124964). https://doi.org/10.1016/j.chemosphere.2019.124964. |
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