Croatica Chemica Acta, Vol. 88 No. 2, 2015.
Original scientific paper
https://doi.org/10.5562/cca2554
Ecological Risk Assessment of Jarosite Waste Disposal
Mihone Kerolli-Mustafa
; Department of Environmental Management, International Business College Mitrovica, 40000 Mitrovica, Kosovo
Lidija Ćurković
; Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 1, 10000 Zagreb, Croatia
Hana Fajković
; Department of Geology, Faculty of Science, University of Zagreb, Horvatovac 102A, 10000 Zagreb, Croatia
Sanda Rončević
; Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102A, 10000 Zagreb, Croatia
Abstract
Jarosite waste, originating from zinc extraction industry, is considered hazardous due to the presence and the mobility of toxic metals that it contains. Its worldwide disposal in many tailing damps has become a major ecological concern. Three different methods, namely modified Synthetic Precipitation Leaching Procedure (SPLP), three-stage BCR sequential extraction procedure and Potential Ecological Risk Index (PERI) Method were used to access the ecological risk of jarosite waste disposal in Mitrovica Industrial Park, Kosovo. The combination of these methods can effectively identify the comprehensive and single pollution levels of heavy metals such as Zn, Pb, Cd, Cu, Ni and As present in jarosite waste. Moreover, the great positive relevance between leaching behavior of heavy metals and F1 fraction was supported by principal component analysis (PCA). PERI results indicate that Cd showed a very high risk class to the environment. The ecological risk of heavy metals declines in the following order: Cd>Zn>Cu>Pb>Ni>As.
Keywords
ecological risk; jarosite waste; heavy metals
Hrčak ID:
141992
URI
Publication date:
20.7.2015.
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