Fig. 1. Sampling sites in the Andong-dam area.
Fig. 2. The ratio of captured to passed sediment tested at 1.0 T of magnetic field.
Fig. 3. Magnetic properties of the captured and passed sediments.
Fig. 4. Comparison of the concentration ratio between the captured and passed portion.
Fig. 5. Correlation analysis between heavy metal concentration and the magnetic separation efficiency.
TABLE I CIRERIA FOR EVALUATION OF THE CONTAMINATION LEVEL FOR DAM SEDIMENT. (NATIONAL INSTITUTE OF ENVIRONMENTAL RESEARCH, KOREA, 2015)
TABLE II CONCENTRATION OF HEAVY METALS BEFORE MAGNETIC SEPARATION.
TABLE III CONCENTRATION OF HEAVY METALS AFTER MAGNETIC SEPARATION.
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