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- Article name
- Analysis of the overburden leaching process as an additional source of some ions entering quarry wastewater
- Authors
- BELYAEVA O. V., , beljaeva1@yandex.ru, Kemerovo State University, Kemerovo, Russia
GORA N. V., , goranataliya@yandex.ru, Kemerovo State University, Kemerovo, Russia
GORELKINA A. K., , alengora@yandex.ru, Kemerovo State University, Kemerovo, Russia
GOLUBEVA N. S., , golubeva.n.s@mail.ru, Kemerovo State University, Kemerovo, Russia
IVANOVA L. A., , lyuda_ivan@mail.ru, Kemerovo State University, Kemerovo, Russia
- Keywords
- wastewater / sulfates / leaching / overburden / hardness salts
- Year
- 2023 Issue 3 Pages 33 - 36
- Code EDN
- NJHIKS
- Code DOI
- 10.52190/2073-2589_2023_3_33
- Abstract
- The process of leaching of mobile forms of sulfates and hardness salts from the rocks of dumps and filter dams has been studied. The dependences of the content of the studied ions on the time of contact of water with the samples are given. The most intensive leaching of all the studied ions occurs during the first 12 hours, after 20-24 hours of contact with the extractant solution, the process stabilizes. It has been established that under equilibrium conditions, the leaching of sulfates from all rocks is observed with both neutral and acidic solutions. The leaching of hardness salts occurs from all the studied samples during imitation of acid rain. It is determined that under dynamic conditions leaching occurs for all samples. The suffusion of the studied ions in continuous contact with water exceeds the leaching under equilibrium conditions not only from neutral solutions, but also during imitation of acid precipitation.
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