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Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia (CROSBI ID 300384)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Huljek, Laura ; Strmić Palinkaš, Sabina ; Fiket, Željka ; Fajković, Hana Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia // Water, 13 (2021), 21; 3123, 18. doi: 10.3390/w13213123

Podaci o odgovornosti

Huljek, Laura ; Strmić Palinkaš, Sabina ; Fiket, Željka ; Fajković, Hana

engleski

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 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 PM2.5. 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.

tailings ; BCR sequential analysis ; marine sediment ; manganese ; REE ; recovery

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Podaci o izdanju

13 (21)

2021.

3123

18

objavljeno

2073-4441

10.3390/w13213123

Povezanost rada

Geologija, Interdisciplinarne prirodne znanosti

Poveznice
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