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Radiometrical and physico-chemical characterisation of contaminated glass waste from a glass dump in Sweden
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (Environmental Science and Engineering Group)ORCID iD: 0000-0002-9012-1847
University of Gothenburg, Sweden;University of Seville, Spain.ORCID iD: 0000-0002-1906-8625
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (Environmental Science and Engineering Group)ORCID iD: 0000-0001-8906-9271
University of Gothenburg, Sweden.
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2020 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 241, p. 1-10, article id 124964Article in journal (Refereed) Published
Abstract [en]

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 mSv 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.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 241, p. 1-10, article id 124964
Keywords [en]
Glass waste, Physico-chemical characterisation, Fine fraction, NORM, Dose rates, Risk assessment
National Category
Environmental Sciences
Research subject
Environmental Science, Environmental technology
Identifiers
URN: urn:nbn:se:lnu:diva-89504DOI: 10.1016/j.chemosphere.2019.124964OAI: oai:DiVA.org:lnu-89504DiVA, id: diva2:1359343
Funder
Swedish Radiation Safety Authority, SSM 2017-1074Vinnova, 2016-05279Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-11Bibliographically approved

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Mutafela, Richard N.Jani, YahyaHogland, William

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