Optimum Conditions of Thermal Treatment for Mercury Contaminated Agricultural Soil in Abandoned Mine Areas
Year: 2024
Type: article
Abstract: In this study, we investigated the feasibility and optimum treatment conditions (temperature and retention time) of thermal desorption for agricultural soil contaminated by mercury in an abandoned mine area.With a retention time of 2 hours, mercury concentration decreased as heating temperature, 100 ℃ to 700 ℃, increased.Eventually, a temperature of 200 ℃ with a retention time of 3 hours was suggested as the optimum condition of thermal desorption to meet the Korean environmental standard and maintain soil functions for agricultural use.54 % of mercury existed as elemental mercury in the studied soil, and this species was dramatically decreased after the treatment.Therefore, thermal desorption with a lower temperature range and longer retention time has a feasibility for remediation of mercury contaminated soil in abandoned mine areas.
Institutions: Sejong University, Hoseo University
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
SDG: Life on land
Open Access status: diamond
OpenAlex ID: W4406093392