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Title:Remediation of contaminated soil by red mud and paper ash
Authors:ID Oprčkal, Primož (Author)
ID Mladenovič, Ana (Author)
ID Zupančič, Nina (Author)
ID Ščančar, Janez (Author)
ID Milačič, Radmila (Author)
ID Zalar Serjun, Vesna (Author)
Files:URL URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S095965262030487X?via%3Dihub
 
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Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:Remediation of contaminated soil can be performed by using various techniques, which must be adequately tailored for each specific case. The aim of this research is to critically evaluate the potential use of red mud and paper ash and a combination of the two as immobilization additives for the remediation of contaminated soil from one of the most polluted sites in Slovenia. The proposed procedure involves the preparation of geotechnical composites made from contaminated soil and mixed with 25 wt% of immobilization additives and an optimal quantity of water to achieve consistency, at which maximum compaction according to the Proctor Compaction Test procedure can be achieved. The results reveal a positive, time-dependent trend for the immobilization of potentially toxic elements in the composite with paper ash, because of the formation of the new hydration products with potentially toxic elements. In a composite containing only red mud, potentially toxic elements were immobilized by sorption mechanisms with no general time-dependent trends. The composite with a combination of additives demonstrates the remediation characteristics of both red mud and paper ash. Using this approach excavated contaminated soil, red mud and paper ash can be successfully recycled in the proposed composites, which can be beneficially used in situ for rehabilitation of contaminated sites. Nevertheless, mobilization of some potentially toxic elements at high pHs may represent a limiting factor and has to be taken into the consideration when a combination of red mud and paper ash is used as immobilization additive.
Keywords:red mud, paper ash, contaminated soil, potentially toxic elements, geotechnical composites
Publication status:Published
Publication version:Version of Record
Publication date:07.02.2020
Publisher:Elsevier
Year of publishing:2020
Number of pages:str. 1-10
Numbering:Vol. 256
PID:20.500.12556/DiRROS-16884 New window
UDC:55
ISSN on article:0959-6526
DOI:10.1016/j.jclepro.2020.120440 New window
COBISS.SI-ID:1548126 New window
Copyright:© 2020 The Authors. Published by Elsevier Ltd.
Note:120440;
Publication date in DiRROS:31.08.2023
Views:833
Downloads:722
Metadata:XML DC-XML DC-RDF
:
OPRČKAL, Primož, MLADENOVIČ, Ana, ZUPANČIČ, Nina, ŠČANČAR, Janez, MILAČIČ, Radmila and ZALAR SERJUN, Vesna, 2020, Remediation of contaminated soil by red mud and paper ash. Journal of cleaner production [online]. 2020. Vol. 256, p. 1–10. [Accessed 13 March 2025]. DOI 10.1016/j.jclepro.2020.120440. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=16884
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Record is a part of a journal

Title:Journal of cleaner production
Shortened title:J. clean. prod.
Publisher:Elsevier
ISSN:0959-6526
COBISS.SI-ID:15470597 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali
Funder:ARRS - Slovenian Research Agency
Project number:P1-0143
Name:Kroženje snovi v okolju, snovna bilanca in modeliranje okoljskih procesov ter ocena tveganja
Funder:ARRS - Slovenian Research Agency
Project number:V1-1649
Name:In situ imobilizacija onesnaženih zemljin z uporabo naprednih nanotehnologij in njihova predelava v urbana tla
Funder:ARRS - Slovenian Research Agency
Project number:L7-6747
Name:In-situ remediacija onesnažene zemljine na področju stare Cinkarne
Funder:ARRS - Slovenian Research Agency
Project number:J1-7148
Name:3D in 4D mikroskopija ? razvoj novega učinkovitega orodja v geoloških znanostih
Funder:ARRS - Slovenian Research Agency
Project number:L1-9190
Name:Vpliv geotehničnih zasipov iz recikliranih materialov na podzemno vodo
Funder:ARRS - Slovenian Research Agency
Project number:Z1-1858
Name:Recikliranje odpadne titanove sadre v cementnih kompozitih

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:07.02.2020
Applies to:Text and Data Mining valid from 2020-05-01 Version of Record valid from 2020-02-07

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