Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway
The leaching of heavy metals from tailings deposit due to the oxidation of sulphidic tailings and formation of acidic leachate is considered a high risk to the surrounding environment. Temperature plays an important role in the leaching of heavy metals from tailings in changing acid-based environmen...
Published in: | International Journal of Agricultural and Biological Engineering |
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Language: | English |
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Online Access: | https://hdl.handle.net/10037/29971 https://doi.org/10.25165/j.ijabe.20231602.7216 |
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ftunivtroemsoe:oai:munin.uit.no:10037/29971 2023-09-05T13:15:49+02:00 Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway Fu, Shuai Lu, Jinmei Walder, Ingar Wu, Daishe 2023 https://hdl.handle.net/10037/29971 https://doi.org/10.25165/j.ijabe.20231602.7216 eng eng IJABE International Journal of Agricultural and Biological Engineering Fu, Lu, Walder, Wu. Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway. International Journal of Agricultural and Biological Engineering. 2023;16(2):152-158 FRIDAID 2154572 doi:10.25165/j.ijabe.20231602.7216 1934-6344 1934-6352 https://hdl.handle.net/10037/29971 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by/4.0 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2023 ftunivtroemsoe https://doi.org/10.25165/j.ijabe.20231602.7216 2023-08-16T23:06:45Z The leaching of heavy metals from tailings deposit due to the oxidation of sulphidic tailings and formation of acidic leachate is considered a high risk to the surrounding environment. Temperature plays an important role in the leaching of heavy metals from tailings in changing acid-based environment, especially in the Arctic area. To investigate how the temperature variation affected metal release from tailings in the Arctic area, a series of column leaching experiments was conducted under four temperature situations (5°C, 10°C, 14°C and 18°C). Physicochemical properties, Fe, Zn, Ni and Mn concentrations of leachates at each cycle were measured, and multivariate statistical analysis was applied to research the effect of temperature on heavy metals leaching from tailings in the Arctic area. The results showed that higher temperatures encouraged tailings to oxidation and sulfuration of and promoted heavy metal release from the tailings through precipitation and erosion. Ni, Zn and Mn have similar releasing resources from tailings and positive correlation in the leaching activity. Rising temperature accelerated Fe leaching; Fe leaching promoted leaching of the other metals, especially of Mn. Appropriately increase temperature will accelerate oxidization and sulfidization of the tailings, promote acid generation and increase TDS and, finally, promote the release of heavy metals. Climate change, with rising temperatures increasing the risk of heavy metals leaching from the tailings, should be given greater attention. Keeping tailings away from the appropriate temperature and in a higher alkalinity is a good method to control the leaching of heavy metals from tailings. Article in Journal/Newspaper Arctic Arctic Climate change University of Tromsø: Munin Open Research Archive Arctic Norway International Journal of Agricultural and Biological Engineering 16 2 152 158 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
The leaching of heavy metals from tailings deposit due to the oxidation of sulphidic tailings and formation of acidic leachate is considered a high risk to the surrounding environment. Temperature plays an important role in the leaching of heavy metals from tailings in changing acid-based environment, especially in the Arctic area. To investigate how the temperature variation affected metal release from tailings in the Arctic area, a series of column leaching experiments was conducted under four temperature situations (5°C, 10°C, 14°C and 18°C). Physicochemical properties, Fe, Zn, Ni and Mn concentrations of leachates at each cycle were measured, and multivariate statistical analysis was applied to research the effect of temperature on heavy metals leaching from tailings in the Arctic area. The results showed that higher temperatures encouraged tailings to oxidation and sulfuration of and promoted heavy metal release from the tailings through precipitation and erosion. Ni, Zn and Mn have similar releasing resources from tailings and positive correlation in the leaching activity. Rising temperature accelerated Fe leaching; Fe leaching promoted leaching of the other metals, especially of Mn. Appropriately increase temperature will accelerate oxidization and sulfidization of the tailings, promote acid generation and increase TDS and, finally, promote the release of heavy metals. Climate change, with rising temperatures increasing the risk of heavy metals leaching from the tailings, should be given greater attention. Keeping tailings away from the appropriate temperature and in a higher alkalinity is a good method to control the leaching of heavy metals from tailings. |
format |
Article in Journal/Newspaper |
author |
Fu, Shuai Lu, Jinmei Walder, Ingar Wu, Daishe |
spellingShingle |
Fu, Shuai Lu, Jinmei Walder, Ingar Wu, Daishe Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
author_facet |
Fu, Shuai Lu, Jinmei Walder, Ingar Wu, Daishe |
author_sort |
Fu, Shuai |
title |
Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
title_short |
Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
title_full |
Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
title_fullStr |
Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
title_full_unstemmed |
Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway |
title_sort |
effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, norway |
publisher |
IJABE |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/29971 https://doi.org/10.25165/j.ijabe.20231602.7216 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Arctic Climate change |
genre_facet |
Arctic Arctic Climate change |
op_relation |
International Journal of Agricultural and Biological Engineering Fu, Lu, Walder, Wu. Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway. International Journal of Agricultural and Biological Engineering. 2023;16(2):152-158 FRIDAID 2154572 doi:10.25165/j.ijabe.20231602.7216 1934-6344 1934-6352 https://hdl.handle.net/10037/29971 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.25165/j.ijabe.20231602.7216 |
container_title |
International Journal of Agricultural and Biological Engineering |
container_volume |
16 |
container_issue |
2 |
container_start_page |
152 |
op_container_end_page |
158 |
_version_ |
1776197643645485056 |