[1]WEI Zhong-yi,JIANG Yan,LONG Jing-hua,et al.Distribution Characteristics of Heavy Metals in the Profile at the Tailings Pond of Hongtoushan Copper Mine[J].Research of Soil and Water Conservation,2012,19(04):188-190.
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Distribution Characteristics of Heavy Metals in the Profile at the Tailings Pond of Hongtoushan Copper Mine
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 04
Page number:
188-190
Column:
Public date:
2012-08-20
- Title:
- Distribution Characteristics of Heavy Metals in the Profile at the Tailings Pond of Hongtoushan Copper Mine
- Keywords:
- copper tailings; pH; heavy metal; total content; acid extractable
- CLC:
- X53;S151
- DOI:
- -
- Abstract:
- The samples were taken at each layer at 15 cm interval in the profile of 0-255 cm depth at the tailings pond of Hongtoushan copper mine. The pH values of the samples were determined by pH meter, and the total and acid extractable contents of the heavy metals of Cu, Zn, Cd, Cr, and Pb were determined by ICP-OES. Results showed that: the pH values of the tailings were between 3.52 and 7.23, which rose with increase of depth; the pH value of 0-150 cm was lower, which could cause migration of the heavy metal elements. Cu, Zn, and Cd were the main pollution elements; the total contents of Cu, Zn, Cd, Cr, and Pb varied more in the depth of 0-60 cm; especially in 0-15 cm, there was a great reduction, which was relevant to the rain leaching and surface runoff. The acid extractable contents of the heavy metals had the most greatly variation in 0-60 cm; in the depth of 0-15 cm, the contents were very low, while they had a massive enrichment in 30-60 cm, which was relevant to low pH and active water movement. The results can help to make pollution control measures of the copper tailings pond.
- References:
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Last Update:
1900-01-01