Potential Ecological Danger of Copper and Nickel Ore Concentrating Tailing Dumps Withdrawn from Operation
V. N. MAKAROV, T. N. VASILYEVA, D. V. MAKAROV, A. A. ALKATSEVA, E. R. FARVAZOVA, D. P. NESTEROV and V. V. LASHCHUK
Institute of Chemistry and Technology for Rare-Earth Elements and Mineral Raw Materials, Kola Scientific Centre,
Russian Academy of Sciences, Ul. Fersmana 26a, Apatity 184209 (Russia), E-mail: makarovdv@chemy.kolasc.net.ru
Abstract
Possible soil pollution, as a consequence of dusting of the tailings of copper and nickel ore dressing withdrawn from operation, is modeled. The results show that sulphide-containing final tailing products brought into soil cause rather intensive transformation of heavy metals into water-soluble forms. Thus formed organomineral complexes are stable and yield to no purification with the help of conventional reagents.
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