“UMMC -Holding” LLC (Verkhnyaya Pyshma, Russia):

A. M. Panshin, Technical Director

Ural Federal University, Institute of Material Science and Metallurgy (Ekaterinburg, Russia):
M. G. Viduetsky, Advisor of the Director, head of the Training Scientific and Research Center
A. P. Purgin, Chief specialist, e-mail: purgin.alexandr@e1.ru
V. A. Maltsev, Director
I. F. Garifulin, Chief specialist

Mine and quarry water is formed as a result of entering of ground water and surface water into the mine, where they are subjected to pollution by fine-suspended particles, metal ions and oil products. To assess the influence of various technological factors on the flotation results of oil products and other impurities from the mine water, a complete factorial experiment was carried out. The resulting equation has shown that the most influence on the degree of flotation purification of mine water is provided by rotational speed of the impeller of mechanical flotation machine that is directly related to the degree of air dispersion of air in the forming pulp-air mixture. Based on these research results, the pneumatic machines of CFM series can be considered as the most promising devices for flotation purification of mine water from oil products. They are characterized by pulp preparation for flotation due to its saturation with fine-dispersed air bubbles in ejecting devices as the key operating principle. Based on the results of pilot and industrial tests, the technological scheme of mine water purification was developed. It includes preliminary clarification of waste water, basic and control flotation in CFM, filtering of chamber product of CFM through the sorbent bed (activated carbon) and allows obtaining fully purified water of the required quality.

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