Justification of environmental technologies and means for dust control of tailing dumps surfaces of hydrometallurgical production and concentrating plants
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 4
Abstract
Objective of paper consists in research and development of environmental technologies and means of dust control of tailing dumps surfaces of hydrometallurgical production and concentration plants by binding tailings with lime and securing dusting surfaces with chemical substances, biological hydraulic fluids and biological reclamation.An analysis of previous studies and test observations, mathematic and physical simulation on wind tunnel model, analysis and statistical processing of the results, the establishment of dependencies, performing the calculations and studies, ex-experimental investigations in gutterways with tailings, field measurements on the surface of the tailing dumps and their zone of influence according to standard procedures are carried out. The most effective way for fixing the biological dusty surfaces of MMP tailings with soil mixtures consisting of water, fertilizer, grass seed, hydrolyzed polyacrylonitrile and mulching additives (clay, ashes from combined heat and power plants, rasping) is recommended. Biological reclamation of waste tailing dumps of Krivbass MPP by sowing seeds of mock cypress on the black soil will prevent tailings dust blowing after 4 -5 months and subsequently ensure active growth of weeds, which seeds are in sufficient amount in black soil. Scientific novelty. On the basis of the results of laboratory and industrial experiments for securing tailings, the environmental technologies and means of dust suppression of dry beaches by binding the tailings to the total weight with lime, as well as securing the dusty surfaces of existing tailing dump with chemicals; soil mixtures in the form of pellets; with specially prepared composition containing the solution with the addition of ingredients such as clay, black soil, dust, lignosulfonates, water, fertilizers, seeds, and biological reclamation of waste tailing dumps of Krivbass MPP by sowing seeds are described. The developed technologies, tools and methods for controlling dusting on operating and dormant tailing dumps will reduce the levels of air pollution of the working area with dust, improve the working conditions of staff and the environment in the areas of waste storage of hydrometallurgical processing of ores.
Authors and Affiliations
V. I. Lyashenko, A. A. Gurin, F. F. Topolniy, N. A. Taran
Keywords
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