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KMID : 1024520020110070729
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Journal of the Environmental Sciences
2002 Volume.11 No. 7 p.729 ~ p.735
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A study on the removal of mixed heavy metal ions using crab shell
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Kim Dong-Seog
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Abstract
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In order to examine the inhibition effect of other heavy metal ions on the removal of heavy metal ions by crab shell in aqueous solution, 10 heavy metal ions were used as single heavy metal ions and mixed heavy metal ions, respectively. In single heavy metal ions, were well removed by crab shell, however, were not. The heavy metal removal increased as the increase of covalent index (Xmr), and the relationship classified heavy metal ions as 2 heavy metal groups . In mixed heavy metal ions, the removals of as 0.49 m㏖/g, regardless of the existence of other heavy metal ions, were similar to the result of single heavy metal ions experiment. The removals of decreased as the existence of other heavy metal ions, however, the removal of increased.
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KEYWORD
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crab shel, single heavy metal ions, mixed heavy metal ions, covalent index
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