进口红土镍矿中有毒有害元素对环境安全的影响

STUDY OF THE EFFECT OF POISONOUS .AND HARMFUL ELEMENTS IN IMPORTED LATERITE NICKEL ORES ON ENVIRONMENT SAFETY

通过对进口的红土镍矿中有毒有害元素含量的分析.发现进口红土镍矿中Hg、Pb、Zn的含量水平均在可接受范围内,但部分红土镍矿中Cr、Cd、As的含量较高.存在不同程度的环境污染风险,尤其是Cd与As存在更大的环境污染风险,应引起高度关注,并采取适当的控制措施。

The content values of poisonous and harmful elements among imported laterite nickel ores were analyzed. The results showed that the content values of Hg, Pb and Zn were acceptable, while the content values of Cr, Cd and As in some batches were rather high, indicating to the risk of pollution on the environment to some extent. Especially, the content values of Cd and As were rather high at the same time, indicating to a higher risk of pollution to the environment. Therefore more attention should be paid and some more strict control managements should be taken.