The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit
Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one. Here, a laboratory column leaching experiment was pe...
Published in: | Journal of Water and Climate Change |
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Online Access: | https://hdl.handle.net/10037/22932 https://doi.org/10.2166/wcc.2021.068 |
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ftunivtroemsoe:oai:munin.uit.no:10037/22932 2023-05-15T15:37:18+02:00 The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit Lu, Jinmei Leiviska, Tiina Walder, Ingar 2021-05-28 https://hdl.handle.net/10037/22932 https://doi.org/10.2166/wcc.2021.068 eng eng IWA Journal of Water and Climate Change Lu J, Leiviska T, Walder. The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit. Journal of Water and Climate Change. 2021 FRIDAID 1924974 doi:10.2166/wcc.2021.068 2040-2244 https://hdl.handle.net/10037/22932 openAccess Copyright 2021 The Author(s) VDP::Technology: 500::Environmental engineering: 610 VDP::Teknologi: 500::Miljøteknologi: 610 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.2166/wcc.2021.068 2021-11-10T23:54:29Z Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one. Here, a laboratory column leaching experiment was performed under four temperatures, 5, 10, 14, and 18 °C on unoxidized tailings from Ballangen, Norway. 600 mL of water was added to each column every second week and leachate was collected and analyzed for pH, salinity, alkalinity, concentrations of sulfate, Co, Fe, Mn, Ni, and Zn. A thin layer of digested sewage sludge was added to columns after the 16th leaching cycle. In total, 21 leaching cycles were performed. Results showed low oxidation of tailings and therefore high pH and low salinity, SO42−, Fe, Ni, and Co in the leachates at leaching temperature of 5 °C. Addition of sludge cover slowed down oxidation of underlying tailings and decreased leaching of SO42−, Fe, Mn, Co, Ni, and Zn from the tailings deposit, especially at relatively high temperatures. 10 °C is a threshold temperature, below which leaching is not affected by the cover addition so much. At a leaching temperature higher than 10 °C, the sludge cover addition can reduce the leaching of elements significantly. Article in Journal/Newspaper Ballangen University of Tromsø: Munin Open Research Archive Ballangen ENVELOPE(16.831,16.831,68.343,68.343) Norway Journal of Water and Climate Change 12 8 3573 3581 |
institution |
Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Technology: 500::Environmental engineering: 610 VDP::Teknologi: 500::Miljøteknologi: 610 |
spellingShingle |
VDP::Technology: 500::Environmental engineering: 610 VDP::Teknologi: 500::Miljøteknologi: 610 Lu, Jinmei Leiviska, Tiina Walder, Ingar The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
topic_facet |
VDP::Technology: 500::Environmental engineering: 610 VDP::Teknologi: 500::Miljøteknologi: 610 |
description |
Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one. Here, a laboratory column leaching experiment was performed under four temperatures, 5, 10, 14, and 18 °C on unoxidized tailings from Ballangen, Norway. 600 mL of water was added to each column every second week and leachate was collected and analyzed for pH, salinity, alkalinity, concentrations of sulfate, Co, Fe, Mn, Ni, and Zn. A thin layer of digested sewage sludge was added to columns after the 16th leaching cycle. In total, 21 leaching cycles were performed. Results showed low oxidation of tailings and therefore high pH and low salinity, SO42−, Fe, Ni, and Co in the leachates at leaching temperature of 5 °C. Addition of sludge cover slowed down oxidation of underlying tailings and decreased leaching of SO42−, Fe, Mn, Co, Ni, and Zn from the tailings deposit, especially at relatively high temperatures. 10 °C is a threshold temperature, below which leaching is not affected by the cover addition so much. At a leaching temperature higher than 10 °C, the sludge cover addition can reduce the leaching of elements significantly. |
format |
Article in Journal/Newspaper |
author |
Lu, Jinmei Leiviska, Tiina Walder, Ingar |
author_facet |
Lu, Jinmei Leiviska, Tiina Walder, Ingar |
author_sort |
Lu, Jinmei |
title |
The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
title_short |
The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
title_full |
The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
title_fullStr |
The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
title_full_unstemmed |
The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit |
title_sort |
effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from ballangen tailings deposit |
publisher |
IWA |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/22932 https://doi.org/10.2166/wcc.2021.068 |
long_lat |
ENVELOPE(16.831,16.831,68.343,68.343) |
geographic |
Ballangen Norway |
geographic_facet |
Ballangen Norway |
genre |
Ballangen |
genre_facet |
Ballangen |
op_relation |
Journal of Water and Climate Change Lu J, Leiviska T, Walder. The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit. Journal of Water and Climate Change. 2021 FRIDAID 1924974 doi:10.2166/wcc.2021.068 2040-2244 https://hdl.handle.net/10037/22932 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.2166/wcc.2021.068 |
container_title |
Journal of Water and Climate Change |
container_volume |
12 |
container_issue |
8 |
container_start_page |
3573 |
op_container_end_page |
3581 |
_version_ |
1766367768655953920 |