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IEG 환경지질연구정보센터

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(1)리제강반응을 이용한 금속광산폐기물의 환경오염 가능성 중금속의 Screen방법 연구 Study on screening method of possible environmental pollutant in metal mine waste by Leisegang reaction. 강원대학교 자연과학대학 환경학과 (* [email protected]). On this study we try to find out what heavy metals are contained in waste products (tailings) from Sangdong mine by using Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP) and by Leisegang reaction we identify heavy metal ions residing in the muck. Then we try to develop a way to detect heavy metal ions and apply it to elsewhere. After analyzing the muck from Sangdong mine, Cr, Zn, Cu, As, Ni, Mo, Pb and Cd were detected in order. By using Leisegang phenomenon, we have tested if there are any ions detected from the heavy metals. Leisegang’s ring changed in a large range of colors and sizes depending upon the substances each metal contains. When we compared the size of the rings between the radius of 0.05M of heavy metal ions and that of 0.005M heavy metal ions, it was about twice longer than that of a less concentrated heavy metal ions. That is, twice of the radius difference to 10 times of the concentration. Therefore, it seems to be possible to screen how concentrated heavy metals are by the shape of the Leisegang’s ring and by the length of its radius to be more specific.. Cr, Zn, Cu, As, Ni, Mo, Pb, Cd. - 121 -.

(2) - 122 -.

(3) - 123 -.

(4) 중금속. 장소 A. 장소 B. 장소 C. 평균. 순 위. pb. 3.85. 4.21. 3.98. 4.01. 7. Cd. 0.94. 1.21. 1.11. 1.09. 8. As. 13.72. 13.89. 14.21. 13.94. 4. Zn. 19.19. 21.26. 20.98. 20.48. 2. Cu. 15.16. 16.11. 16.08. 15.78. 3. Cr. 33.13. 32.19. 33.08. 32.80. 1. Ni. 11.23. 10.21. 11.19. 10.88. 5. Mo. 4.25. 4.20. 4.17. 4.21. 6. - 124 -.

(5) - 125 -.

(6) <그림 1>항온수조에서 내부전해질 만들기. <그림 2> 외부전해질 넣기. Pb. Cu. - 126 -.

(7) Zn. Ni. - 127 -.

(8) Pb 의 =. , =8.10. 16.2mm. 8.73mm. 13.71mm. 7.48mm. 14.96mm. 8.10mm. Cu 생성. Zn 생성. - 128 -.

(9) Ni 생성. 13.71mm. 중금속이온종류. 농도. 8.72mm. 0.05M. 0.005M. Pb. 16.21mm. 8.73mm. Cu. 13.71mm. 7.48mm. Zn. 14.96mm. 8.10mm. Ni. 13.71mm. 8.72mm. 비 고. 중금속 이온에 따른 농도별 리제강링의 반지름 비교. 반지름길이(mm). 18 16 14 12 10 8 6 4 2 0. 16.21 13.71 8.73. 14.96. 13.71. 8.1. 7.48. 8.72 0.05M 0.005M. Pb. Cu. Zn. 중금속이온종류. - 129 -. Ni.

(10) - 130 -.

(11) - 131 -.

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