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Title:Leaching and geochemical modelling of an electric arc furnace (EAF) and ladle slag heap
Authors:ID Loncnar, Mojca (Author)
ID Mladenovič, Ana (Author)
ID Zalar Serjun, Vesna (Author)
ID Zupančič, Marija (Author)
ID Sloot, Hans A. van der (Author)
Files:URL URL - Source URL, visit https://www.mdpi.com/2305-6304/10/1/10
 
.pdf PDF - Presentation file, download (4,37 MB)
MD5: C91A917E6E369D2D94E36303206E6C82
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:Old metallurgical dumps across Europe represent a loss of valuable land and a potential threat to the environment, especially to groundwater (GW). The Javornik electric arc furnace (EAF) and ladle slag heap, situated in Slovenia, was investigated in this study. The environmental impact of the slag heap was evaluated by combining leaching characterization tests of landfill samples and geochemical modelling. It was shown that throughout the landfill the same minerals and sorptive phases control the leaching of elements of potential concern, despite variations in chemical composi- tion. Although carbonation of the disposed steel slags occurred (molar ratio CO3/(Ca+Mg) = 0.53) relative to fresh slag, it had a limited effect on the leaching behaviour of elements of potential concern. The leaching from the slag heaps had also a limited effect on the quality of the GW. A site-specific case, however, was that leachates from the slag heap were strongly diluted, since a rapid flow of GW fed from the nearby Sava River was observed in the landfill area. The sampling and testing approach applied provides a basis for assessing the long-term impact of release and is a good starting point for evaluating future management options, including beneficial uses for this type of slag.
Keywords:EAF slag, field verification, geochemical modelling, ladle slag, leaching, release prediction, steel slag heap
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2022
Publisher:MDPI
Year of publishing:2022
Number of pages:str. 1-21
Numbering:Vol. 10, iss. 1
PID:20.500.12556/DiRROS-15825 New window
UDC:620.1/.2
ISSN on article:2305-6304
DOI:10.3390/toxics10010010 New window
COBISS.SI-ID:92336899 New window
Copyright:© 2022 by the authors. Licensee MDPI, Basel, Switzerland
Note:Nasl. z nasl. zaslona; Opis vira z dne 6. 1. 2022; Članek št. 10;
Publication date in DiRROS:28.04.2023
Views:1151
Downloads:484
Metadata:XML DC-XML DC-RDF
:
LONCNAR, Mojca, MLADENOVIČ, Ana, ZALAR SERJUN, Vesna, ZUPANČIČ, Marija and SLOOT, Hans A. van der, 2022, Leaching and geochemical modelling of an electric arc furnace (EAF) and ladle slag heap. Toxics : Elektronski vir [online]. 2022. Vol. 10, no. 1, p. 1–21. [Accessed 6 April 2025]. DOI 10.3390/toxics10010010. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=15825
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Record is a part of a journal

Title:Toxics : Elektronski vir
Shortened title:Toxics
Publisher:MDPI
ISSN:2305-6304
COBISS.SI-ID:520262681 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:Z1-1858
Name:Recikliranje odpadne titanove sadre v cementnih kompozitih
Funder:ARRS - Slovenian Research Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:EAF žlindra, geokemijsko modeliranje, toplotna stabilnost, ponovčna žlindra, izluževanje, napovedovanje izpustov, odlagališče jeklarske žlindre


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