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Title:Assessment of natural zeolite clinoptilolite for remediation of mercury-contaminated environment
Authors:ID Nuić, Ivona (Author)
ID Gosar, Mateja (Author)
ID Ugrina, Marin (Author)
ID Trgo, Marina (Author)
Files:.pdf PDF - Presentation file, download (54,30 MB)
MD5: 7E4B86C5D0A8074DCFB92CC7659BC139
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo GeoZS - Geological Survey of Slovenia
Abstract:The soil at ancient roasting sites in the surroundings of the Idrija mine (Slovenia) is highly contaminated with mercury. To assess the impact of mercury on groundwater by infiltration and find an eco-friendly remediation method, the leaching of mercury from the soil containing 1347 mg Hg/kg, followed by sorption of the total leached mercury on cost-effective natural zeolite (NZ) clinoptilolite, was performed. The leaching of soil in ultrapure water of pHo = 3.00–11.46 after 24 h resulted in the total leached mercury concentration in the range 0.33–17.43 µg/L. Much higher concentrations (136.9–488.0 µg/L) were determined after the first few hours of leaching and were high above the maximum permissible level in water for human consumption. The NZ showed very good sorption of the total leached mercury, with a maximum removal efficiency of 94.2%. The leaching of mercury in presence of the NZ resulted in a significant decrease of the total leached mercury (1.9–20.3 µg/L compared to 12.8–42.2 µg/L), with removal efficiencies up to 90.5%, indicating immobilization of mercury species. The NZ has a great potential for economically viable remediation of mercury-contaminated environment. However, efforts should be made in the further study of mercury leachability to reduce the mercury concentration in water to acceptable levels.
Keywords:Idrija mine, mercury-contaminated soil and water, leaching, natural zeolite clinoptilolite, remediation
Publication status:Published
Publication version:Version of Record
Publisher:MDPI
Year of publishing:2022
Number of pages:23 str.
Numbering:vol. 10, no. 4
PID:20.500.12556/DiRROS-15223 New window
UDC:504.5
ISSN on article:2227-9717
DOI:10.3390/pr10040639 New window
COBISS.SI-ID:112548867 New window
Publication date in DiRROS:23.06.2022
Views:1198
Downloads:768
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NUIĆ, Ivona, GOSAR, Mateja, UGRINA, Marin and TRGO, Marina, 2022, Assessment of natural zeolite clinoptilolite for remediation of mercury-contaminated environment. Processes [online]. 2022. Vol. 10, no. 4. [Accessed 8 April 2025]. DOI 10.3390/pr10040639. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=15223
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Record is a part of a journal

Title:Processes
Publisher:MDPI
ISSN:2227-9717

Document is financed by a project

Funder:Other - Other funder or multiple funders
Name:Application of natural zeolite for remediation of mercury-contaminated soil
Funder:ARRS - Slovenian Research Agency
Project number:P1-0020
Name:Podzemne vode in geokemija

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.
Licensing start date:24.03.2022

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