한국지구물리탐사학회:학술대회논문집

Korean Society of Earth and Exploration Geophysicists (한국지구물리·물리탐사학회)
권호 표지

Distribution of heavy metal contamination in soils and sediments in the vicinity of the Hwacheon Au-Ag-Pb-Zn mine

  • Lee Sung-Eun (School of Civil, Urban and Geosystem Engineering, Seoul National University) ;
  • Lee Jin-Soo (School of Civil, Urban and Geosystem Engineering, Seoul National University) ;
  • Chon Hyo-Taek (School of Civil, Urban and Geosystem Engineering, Seoul National University)
  • Published : 2003.11.01
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Abstract

In order to investigate the level of heavy metal contamination and the seasonal variation of metal concentrations in soils and sediments influenced by past mining activities, tailings, soil and sediment samples were collected from the Hwacheon mine in Korea. The main pollution sources in this mine site are suggested as tailings and mine waste rocks. Elevated levels of Cd, Pb and Zn were found in soils and sediments. In a study of seasonal variation on the heavy metals in soils and sediments, heavy metals were higher enriched collected from before rainy season ($2^{nd}$ sampling) than after rainy season ($1^{st}$ sampling). Also, in order to estimate the microbial effects on Cd speciation in sediments, bacteria which can adsorb Cd was isolated and Cd adsorption characteristics of isolated bacteria in Cd solution was evaluated. The Cd bioremoval efficiency in Cd solution (5 ppm) by bacteria was more than $90\%$. Bioremoval efficiency in single metal solution was higher than that in mixed metal solution of Pb and Zn.

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