Protection of natural geological environment by utilizing ore tailings
The main aim of the research is to study the feasibility and economic viability of waste-free extraction of metals and salts from ore tailings to the standards of sanitary safety by new methods, such as mechanical activation. Methods: laboratory studies in Disintegrator installing DES 11 by the inte...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Tomsk Polytechnic University
2019-05-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya-tpu.ru/archive/article/view/1584 |
| Summary: | The main aim of the research is to study the feasibility and economic viability of waste-free extraction of metals and salts from ore tailings to the standards of sanitary safety by new methods, such as mechanical activation. Methods: laboratory studies in Disintegrator installing DES 11 by the integrated program and the method including a study of tailings, metal leaching with the reagents in percolators, metals combined leaching with reagents in a disintegrator; interpretation of the test results in the form of a logarithmic or polynomial interpolation and mathematical description; simulation of the parameters of mechanical activation; statistical analysis based on multiple regression and correlation analysis implementing the algorithms in the software environment MATLAB. Results: The authors have identified new laws of extracting metals from ore tailings of ferrous and nonferrous metallurgy and coal washing, depending on the processing variables. It is proved that the method of mechanical activation allows metal separation from the tailings to the standards of sanitary requirements that will prevent a catastrophic degradation of natural geological landscapes. The authors developed the environmental-economic-mathematical model to assess the recommended technologies for extracting metals from ore tailings with the calculation of ecological and economic effect of the options of involving substandard mineral raw materials in production. Conclusions. The degradation level of natural geological landscapes is reduced by radical recycling of ore mining and processing tailings stored on the earth surface. Separation of metals from ore tailings to the standards of sanitary requirements is provided by the processing by the mechanical activation method. The waste-free recycling of ore mining and processing tailings provides economic benefits due to engaging the substandard mineral raw materials in the production to obtain the marketable products. |
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| ISSN: | 2500-1019 2413-1830 |