한국지하수토양환경학회:학술대회논문집 (Proceedings of the Korean Society of Soil and Groundwater Environment Conference)
- 한국지하수토양환경학회 2003년도 추계학술발표회
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- Pages.56-63
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- 2003
Fraction and Mobility of Heavy Metals in the abandoned closed mine near Okdong stream sediments
- Kim, Hee-Joung (Department of Environmental Science, Kangwon National University) ;
- Yang, Jae (Division of Environmental & Biological Engineering, Kangwon National University) ;
- Lee, Jai-Young (Department of Environmental Eng., University of Seoul) ;
- Jun, Sang-Ho (Department of Environmental Science, Kangwon National University)
- 발행 : 2003.09.01
초록
Fractional composition and mobility of sediments some heavy metals in Okdong stream are investigated. The fractional scheme for sediment heavy metal was made for five chemically defined heavy metal forms as adsorbed fraction, carbonate fraction, reducible fraction, organic fraction, and residual fraction (Tessier et at., 1979). The most abundant fraction of the sediment heavy metal is reducible and secondly abundant organic fraction. Adsorbed fraction is minor part of the total heavy metals. Mobilization of sediment heavy metals in stream Okdong is occur 19.8∼56.7% of total cadmium concentrate. The most abundant fraction of the sediment metal is organic fraction in Cu, Pb metals investigated. Labile fraction of sediment metals are 0.5%∼48.5% of total Zn, 2.6%∼48.1% of total Pb, 0.2∼36.9% of total Cu respectively, Most of labile fraction consists of reducible fraction for Cd, Zn, adsorbed fraction for Pb, reducible fraction for Cu, adsorbed fraction for Ni. The Mobilization of Zn and Cu is most likely to occur when oxygen depletes and that of Pb and Ni occurs when physical impact, oxygen depletion and pH reduction.