Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia

The former manganese ferroalloy plant and the remaining tailings are affecting the quality of the environment in Šibenik Bay, Croatia, even though industrial activities ceased more than 25 years ago. This study has revealed that the main manganese mineral phases present in the recently collected tai...

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Autores principales: Laura Huljek, Sabina Strmić Palinkaš, Željka Fiket, Hana Fajković
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/5f9f034f578343bb9155fd91251b5158
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spelling oai:doaj.org-article:5f9f034f578343bb9155fd91251b51582021-11-11T19:58:08ZEnvironmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia10.3390/w132131232073-4441https://doaj.org/article/5f9f034f578343bb9155fd91251b51582021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3123https://doaj.org/toc/2073-4441The former manganese ferroalloy plant and the remaining tailings are affecting the quality of the environment in Šibenik Bay, Croatia, even though industrial activities ceased more than 25 years ago. This study has revealed that the main manganese mineral phases present in the recently collected tailings, as well as in the dust collected on the roof of the plant during the production period, are bustamite and Mn-oxides. The same type of Mn mineral phases was also found in recently collected sediments from Šibenik Bay. Detailed chemical and phase analyses (XRD, BCR sequential analysis, aqua regia and lithium borate fusion) of the dust sample revealed high manganese values (24.1%), while granulometric analysis showed that 50% of the particles are smaller than PM<sub>2.5</sub>. The influence of the tailings is visible in the sediment, but the concentrations of the potentially toxic elements determined by the sequential BCR analysis are within the legal limits. Some higher values (20.3 g/kg Mn, 595 mg/kg Pb and 494 mg/kg Zn) are detected in the tailings, which are still exposed to weathering and as such should be additionally monitored. On the other hand, this material contains a considerable number of elements that could be considered lucrative (∑ REE up to 700 mg/kg, Mn up to 23 g/kg, Fe up to 37 g/kg and Al up to 25 g/kg), opening the possibility of reuse and recovery.Laura HuljekSabina Strmić PalinkašŽeljka FiketHana FajkovićMDPI AGarticletailingsBCR sequential analysismarine sedimentmanganeseREErecoveryHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3123, p 3123 (2021)
institution DOAJ
collection DOAJ
language EN
topic tailings
BCR sequential analysis
marine sediment
manganese
REE
recovery
Hydraulic engineering
TC1-978
Water supply for domestic and industrial purposes
TD201-500
spellingShingle tailings
BCR sequential analysis
marine sediment
manganese
REE
recovery
Hydraulic engineering
TC1-978
Water supply for domestic and industrial purposes
TD201-500
Laura Huljek
Sabina Strmić Palinkaš
Željka Fiket
Hana Fajković
Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
description The former manganese ferroalloy plant and the remaining tailings are affecting the quality of the environment in Šibenik Bay, Croatia, even though industrial activities ceased more than 25 years ago. This study has revealed that the main manganese mineral phases present in the recently collected tailings, as well as in the dust collected on the roof of the plant during the production period, are bustamite and Mn-oxides. The same type of Mn mineral phases was also found in recently collected sediments from Šibenik Bay. Detailed chemical and phase analyses (XRD, BCR sequential analysis, aqua regia and lithium borate fusion) of the dust sample revealed high manganese values (24.1%), while granulometric analysis showed that 50% of the particles are smaller than PM<sub>2.5</sub>. The influence of the tailings is visible in the sediment, but the concentrations of the potentially toxic elements determined by the sequential BCR analysis are within the legal limits. Some higher values (20.3 g/kg Mn, 595 mg/kg Pb and 494 mg/kg Zn) are detected in the tailings, which are still exposed to weathering and as such should be additionally monitored. On the other hand, this material contains a considerable number of elements that could be considered lucrative (∑ REE up to 700 mg/kg, Mn up to 23 g/kg, Fe up to 37 g/kg and Al up to 25 g/kg), opening the possibility of reuse and recovery.
format article
author Laura Huljek
Sabina Strmić Palinkaš
Željka Fiket
Hana Fajković
author_facet Laura Huljek
Sabina Strmić Palinkaš
Željka Fiket
Hana Fajković
author_sort Laura Huljek
title Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
title_short Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
title_full Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
title_fullStr Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
title_full_unstemmed Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia
title_sort environmental aspects of historical ferromanganese tailings in the šibenik bay, croatia
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/5f9f034f578343bb9155fd91251b5158
work_keys_str_mv AT laurahuljek environmentalaspectsofhistoricalferromanganesetailingsinthesibenikbaycroatia
AT sabinastrmicpalinkas environmentalaspectsofhistoricalferromanganesetailingsinthesibenikbaycroatia
AT zeljkafiket environmentalaspectsofhistoricalferromanganesetailingsinthesibenikbaycroatia
AT hanafajkovic environmentalaspectsofhistoricalferromanganesetailingsinthesibenikbaycroatia
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