engleski

Environmental-friendly modified natural zeolites as sorbents for in situ remediation of mercury-contaminated soil in Idrija region, Slovenia

Toxicity Characteristic Leaching Procedure (TCLP) was applied to mercurycontaminated soil from the Idrija region, Slovenia to evaluate the potential soil toxicity. The TCLP test was performed with and without the addition of natural zeolite, iron(III)-modified zeolite or sulphur-impregnated zeolite. Results showed that the soil is extremely polluted and represents hazardous waste. The addition of zeolites significantly reduces the concentration of leached Hg, whereby the most satisfactory results being achieved with sulphur- impregnated zeolite, making it as a potential sorbent for in situ remediation of mercury- contaminated soil.

natural zeolite ; iron-modified zeolite ; sulphur-impregnated zeolite ; leaching ; mercury-contaminated soil

This work was supported by the bilateral Croatian-Slovenian project Natural Modified Sorbents as Materials for Remediation of Mercury Contaminated Environment (2020–2023), founded by the Croatian Ministry of Science and Education and Slovenian Research Agency (ARRS) and by the Slovenian Research Agency (ARRS) in the framework of the research program Groundwater and Geochemistry (P1-0020).