Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic
In the Kola Subarctic, a mining industry has developed, which is a source of environmental pollution with heavy metals. The objects of study were the tailings of three large mining enterprises in the region: apatite-nepheline, complex and loparite ores. The geotechnical characteristics were studied,...
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ftmdpi:oai:mdpi.com:/2305-6304/9/7/163/ 2023-08-20T04:10:02+02:00 Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic Eugenia Krasavtseva Victoria Maksimova Dmitry Makarov agris 2021-07-09 application/pdf https://doi.org/10.3390/toxics9070163 EN eng Multidisciplinary Digital Publishing Institute Metals and Radioactive Substances https://dx.doi.org/10.3390/toxics9070163 https://creativecommons.org/licenses/by/4.0/ Toxics; Volume 9; Issue 7; Pages: 163 heavy metal pollution risk assessment availability rare earth elements climate Text 2021 ftmdpi https://doi.org/10.3390/toxics9070163 2023-08-01T02:09:22Z In the Kola Subarctic, a mining industry has developed, which is a source of environmental pollution with heavy metals. The objects of study were the tailings of three large mining enterprises in the region: apatite-nepheline, complex and loparite ores. The geotechnical characteristics were studied, and the granulometric composition of the samples was established. The main minerals that make up the material of ore dressing tailings have been determined. Using inductively coupled plasma mass spectrometry, the content of trace elements, in particular heavy metals and rare earth elements, has been established. The enrichment factor, the geoaccumulation indexes, the potential ecological risk index factor and the potential environmental hazard index have been calculated. Priority pollutants characteristics for specific objects have been identified. It is noted that the finely dispersed material of the tailings of loparite and complex ores is 1.5–3 times enriched in heavy and rare earth metals in comparison with the total material of the tailings. In laboratory conditions, experiments were carried out to simulate the process of interaction of dust particles with soil solutions containing different amounts of dissolved organic matter and at average seasonal temperatures. It was found that a decrease in the pH of the solution and an increase in the amount of organic carbon and temperature lead to the mobilization of heavy and rare earth metals from the tailings. Text Subarctic MDPI Open Access Publishing Toxics 9 7 163 |
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English |
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heavy metal pollution risk assessment availability rare earth elements climate |
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heavy metal pollution risk assessment availability rare earth elements climate Eugenia Krasavtseva Victoria Maksimova Dmitry Makarov Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
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heavy metal pollution risk assessment availability rare earth elements climate |
description |
In the Kola Subarctic, a mining industry has developed, which is a source of environmental pollution with heavy metals. The objects of study were the tailings of three large mining enterprises in the region: apatite-nepheline, complex and loparite ores. The geotechnical characteristics were studied, and the granulometric composition of the samples was established. The main minerals that make up the material of ore dressing tailings have been determined. Using inductively coupled plasma mass spectrometry, the content of trace elements, in particular heavy metals and rare earth elements, has been established. The enrichment factor, the geoaccumulation indexes, the potential ecological risk index factor and the potential environmental hazard index have been calculated. Priority pollutants characteristics for specific objects have been identified. It is noted that the finely dispersed material of the tailings of loparite and complex ores is 1.5–3 times enriched in heavy and rare earth metals in comparison with the total material of the tailings. In laboratory conditions, experiments were carried out to simulate the process of interaction of dust particles with soil solutions containing different amounts of dissolved organic matter and at average seasonal temperatures. It was found that a decrease in the pH of the solution and an increase in the amount of organic carbon and temperature lead to the mobilization of heavy and rare earth metals from the tailings. |
format |
Text |
author |
Eugenia Krasavtseva Victoria Maksimova Dmitry Makarov |
author_facet |
Eugenia Krasavtseva Victoria Maksimova Dmitry Makarov |
author_sort |
Eugenia Krasavtseva |
title |
Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
title_short |
Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
title_full |
Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
title_fullStr |
Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
title_full_unstemmed |
Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic |
title_sort |
conditions affecting the release of heavy and rare earth metals from the mine tailings kola subarctic |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/toxics9070163 |
op_coverage |
agris |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Toxics; Volume 9; Issue 7; Pages: 163 |
op_relation |
Metals and Radioactive Substances https://dx.doi.org/10.3390/toxics9070163 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/toxics9070163 |
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Toxics |
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9 |
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7 |
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163 |
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