Ivona Nuić (Avtor), Mateja Gosar (Avtor), Marin Ugrina (Avtor), Marina Trgo (Avtor)

Povzetek

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.

Ključne besede

zeoliti;onesnaženje okolja;sanacija onesnaženja;živo srebro;rudarjenje;Idrija;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: GeoZS - Geološki zavod Slovenije
Založnik: MDPI
UDK: 504.5
COBISS: 112548867 Povezava se bo odprla v novem oknu
ISSN: 2227-9717
Št. ogledov: 102
Št. prenosov: 47
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Vrsta dela (COBISS): Delo ni kategorizirano
Strani: 23 str.
Letnik: ǂvol. ǂ10
Zvezek: ǂno. ǂ4
Čas izdaje: 2022
DOI: 10.3390/pr10040639
ID: 15721013