期刊
ARABIAN JOURNAL OF GEOSCIENCES
卷 11, 期 24, 页码 -出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s12517-018-4141-y
关键词
Soil; Heavy metals; Iron mine; Contamination; Remediation
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2016R1D1A3B03934558]
Ulsan mine produced the iron ore minerals of magnetite, arsenopyrite, and scheelite in 1992, and serpentine was developed from 1977 to 2002. The soils of the mine were contaminated by heavy metals such as As, Zn, Ni, and Cd. Heavy metals of Ni and Zn came mostly from serpentinite, and As was derived mainly from arsenopyrite in the scan-type iron ore body. As, Zn, and Ni were major contaminants, but Cd was a minor contaminant on a basis of Korean standard. The heavy metals in the deep depth (>5m) came from the host rocks, and those in the shallow depth (<5m) were derived from the organic-mineral complexation soil. The remediation plan was a soil washing for highly contaminated soils and the containment of clay materials for less contaminated soils. Even though the remediation methods were successful, the continuous monitoring and the analysis of monitoring data are still necessary for the conservation of soil and groundwater around the study area.
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