ELEMENTS OF BIOLOGICAL RECLAMATION OF OPERATING MUD TAILINGS DUMPS

2020 ◽  
pp. 172-180
Author(s):  
Mykola Domnichev ◽  
◽  
Maksym Malakhovskyi ◽  
Tetiana Nehrii ◽  
Oksana Nesterenko ◽  
...  
Keyword(s):  
Tailings Dumps

scholarly journals Investigation of the radiation situation near the tailings dumps of the Stepnogorsk Hydrometallurgical Plant

2020 ◽  
Vol 77 (4) ◽  
pp. 209-217
Keyword(s):  
Maximum Permissible Concentration ◽  
Production Waste ◽  
Soil Types ◽  
Metallurgical Combine ◽  
Harmful Substances ◽  
The Impact ◽  
Tailings Dumps ◽  
Different Soils

The article discusses issues related to the production waste of Stepnogorsk Mining and Metallurgical Combine (SМMС). The greatest danger to the environment is represented by radionuclides. Soil types and their resistance and ability to accumulate radionuclides are considered. It is also noted that harmful radioisotopes spread through the soil and atmosphere and the maximum permissible concentration (MPC) of these substances decreases from the source of their storage and this is due to the fact that different soils have different conductivity of these harmful substances. The article also identifies opportunities to reduce the impact of SМMС wastes on soil and vegetation, as well as the atmosphere near a dangerous source of radiation infection.

scholarly journals Development and application of a methodological tool for prioritization of rehabilitation of abandoned tailings dumps in the Giyani and Musina areas of South Africa

2019 ◽  
Vol 6 (1) ◽  
pp. 1619894
Author(s):  
Sphiwe Emmanuel Mhlongo ◽  
Francis Amponsah-Dacosta ◽  
Armstrong Kadyamatimba ◽  
Sanjay Kumar Shukla
Keyword(s):  
South Africa ◽  
Methodological Tool ◽  
Tailings Dumps

PROBLEMS AND PROSPECTS OF INVOLVING ORE PROCESSING WASTE FROM THE TYRNYAUZ DEPOSIT INTO INDUSTRIAL OPERATION

2021 ◽  
Vol 4 (1) ◽  
pp. 86-96
Author(s):  
M.V. Rylnikova ◽  
◽  
M.V. Tsupkina ◽  
R.K. Dzhappuev ◽  
◽  
...  
Keyword(s):  
High Altitude ◽  
Raw Materials ◽  
Ecological Impact ◽  
Processing Waste ◽  
Industrial Operation ◽  
Ore Processing ◽  
The World ◽  
Industrial Use ◽  
Technogenic Raw Materials ◽  
Tailings Dumps

The problem of involving stale ore processing waste from the Tyrnyauz deposit into industrial operation is considered. The world experience of involving technogenic mineral formations in industrial exploitation is summarized, and the main directions of industrial use of technogenic raw materials are determined. The possible ecological impact of tailings dumps located in high-altitude areas on the ecology of the mining region is considered. The data on the formation, operation and composition of the tailings dumps of the Tyrnyauz Tung-sten-Molybdenum Combine (TVMK) are summarized. The problems are formulated and the prospects for the liquidation of tailings dumps by involving man-made raw materials in indus-trial operation are justified.

Evaluarea conținutului nutrienților în orizonturile solului nou-format de pe suprafața haldelor de steril în procesul de restabilire naturală a ecosistemului petrofit din cariera de calcar ,,Lafarge ciment”

2019 ◽  
Author(s):  
Constantin Bulimaga ◽  
◽  
Corina Certan ◽  
Aureliu Burghelea ◽  
◽  
...  
Keyword(s):  
Heavy Metals ◽  
Nitrogen Content ◽  
Plant Species ◽  
Total Nitrogen ◽  
Organic Substance ◽  
Soil Layer ◽  
Different Ages ◽  
Alert Threshold ◽  
Tailings Dumps ◽  
Number Of Plant Species

It has been established that the content of heavy metals in tailings dumps of different ages does not exceed the alert threshold for any component. The content of K2O in the 0-20 cm layer is higher than in the 20-40 cm, which is explained by biogeochemical (phytocenotic) processes. It is demonstrated that the total nitrogen content on the surface of tailings dumps of different ages depends on their age. The highest nitrogen content is contained in the newly formed soil layer on the surface of the 25 year old waste heap in the 0-20 cm layer. This is explained by the fact that the largest number of plant species (63 units) that have produced the largest amount of organic substance (humus) from the mass of biodiversity are growing on this dump.

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