Influence of Environmental Factors on Release of Heavy Metals in Ore at the Port Stockyard

Zhen-kun WANG; Xue-jun LI; Shuang FENG; Yan CHEN; Jie CHI; Wen QU; Yu-qing MO; Qiang LUO; Feng PU; Xiao-man GUO

2014 Vol. 33, No. 2

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Article navigation > Rock and Mineral Analysis > 2014 > 33(2): 256-261

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Zhen-kun WANG, Xue-jun LI, Shuang FENG, Yan CHEN, Jie CHI, Wen QU, Yu-qing MO, Qiang LUO, Feng PU, Xiao-man GUO. Influence of Environmental Factors on Release of Heavy Metals in Ore at the Port Stockyard[J]. Rock and Mineral Analysis, 2014, 33(2): 256-261.

Citation:

Influence of Environmental Factors on Release of Heavy Metals in Ore at the Port Stockyard

1.
Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300456, China
2.
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China

Received Date: 27 September 2013

Accepted Date: 14 January 2014

Abstract

Abstract

Abstract: Along with China′s economic development, the dissolution of heavy metals in port minerals stockyard has became important contamination sources of soil and water, which can't be ignored. The amount of heavy metal dissolution is related to the species of heavy metals. Through the static soaking test, according to the leaching of heavy metals to determine the typical mineral products and the typical heavy metal factor to study the influence of time, pH and temperature on release of heavy metals in typical products at Tianjin port stockyard. The results showed that the amounts of heavy metals released from lead ore and copper ore were the greatest. Zn, Pb and Cd in the lead ore and Ni in the copper ore were the typical heavy metal factor, and were found to be 1-3 orders of magnitude higher than other heavy metal ions. The concentration of Zn, Pb, and Cd in lead ore increased with time, and the concentration of Ni in the copper ore basically remained stable. The concentration of Zn, Pb and Cd in the lead ore and Ni in the copper ore had no significant differences with the change of pH (3.5 to 7.5). The concentration of Zn, Pb, and Cd in the lead ore increased with temperature (20-40℃). The concentration of Ni in the copper ore showed a downward trend above 30℃. This study preliminarily investigated the basic rule of dissolution of heavy metals in minerals and provides data to support and control the dissolution of heavy metals in the port stockyard.
- port stockyard /
- ore /
- heavy metals /
- static soaking /
- environmental factors

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References

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