Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments
Low temperatures and frequent soil freezeethaw in polar environments present challenges for the immobilisation of metals. To address these challenges we investigated the chemical forms of Pb, Zn and Cu in an Antarctic land�ll, examined in vitro reaction kinetics of these metals and orthophosphate...
Published in: | Environmental Pollution |
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2011
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Online Access: | https://researchprofiles.canberra.edu.au/en/publications/748bc5c3-dbe5-4d49-a0f4-51ca41996b8a https://doi.org/10.1016/j.envpol.2011.09.035 https://researchsystem.canberra.edu.au/ws/files/9370449/1_s2.0_S0269749111005616_main.pdf |
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ftcanberrauncris:oai:pure.atira.dk:publications/748bc5c3-dbe5-4d49-a0f4-51ca41996b8a 2024-05-19T07:32:30+00:00 Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments White, Duanne Hafsteinsdóttir, Erla Gore, Damian Thorogood, Gordon Stark, Scott 2011 application/pdf https://researchprofiles.canberra.edu.au/en/publications/748bc5c3-dbe5-4d49-a0f4-51ca41996b8a https://doi.org/10.1016/j.envpol.2011.09.035 https://researchsystem.canberra.edu.au/ws/files/9370449/1_s2.0_S0269749111005616_main.pdf eng eng info:eu-repo/semantics/closedAccess White , D , Hafsteinsdóttir , E , Gore , D , Thorogood , G & Stark , S 2011 , ' Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments ' , Environmental Pollution , vol. 161 , pp. 143-153 . https://doi.org/10.1016/j.envpol.2011.09.035 article 2011 ftcanberrauncris https://doi.org/10.1016/j.envpol.2011.09.035 2024-04-23T02:38:27Z Low temperatures and frequent soil freezeethaw in polar environments present challenges for the immobilisation of metals. To address these challenges we investigated the chemical forms of Pb, Zn and Cu in an Antarctic landâ�£ll, examined in vitro reaction kinetics of these metals and orthophosphate at 2 and 22 C for up to 185 days, and subjected the products to freezeethaw. Reaction products at both temperatures were similar, but the rate of production varied, with Cu-PO4 phases forming faster, and the Zn- and Pb-PO4 phases slower at 2 C. All metal-orthophosphate phases produced were stable during a 2.5 h freezeethaw cycle to â�£30 C. Metal immobilisation using orthophosphate can be successful in polar regions, but treatments will need to consider differing mineral stabilities and reaction rates at low temperatures. Article in Journal/Newspaper Antarc* Antarctic University of Canberra Research Portal Environmental Pollution 161 143 153 |
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Open Polar |
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University of Canberra Research Portal |
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ftcanberrauncris |
language |
English |
description |
Low temperatures and frequent soil freezeethaw in polar environments present challenges for the immobilisation of metals. To address these challenges we investigated the chemical forms of Pb, Zn and Cu in an Antarctic land�ll, examined in vitro reaction kinetics of these metals and orthophosphate at 2 and 22 C for up to 185 days, and subjected the products to freezeethaw. Reaction products at both temperatures were similar, but the rate of production varied, with Cu-PO4 phases forming faster, and the Zn- and Pb-PO4 phases slower at 2 C. All metal-orthophosphate phases produced were stable during a 2.5 h freezeethaw cycle to �30 C. Metal immobilisation using orthophosphate can be successful in polar regions, but treatments will need to consider differing mineral stabilities and reaction rates at low temperatures. |
format |
Article in Journal/Newspaper |
author |
White, Duanne Hafsteinsdóttir, Erla Gore, Damian Thorogood, Gordon Stark, Scott |
spellingShingle |
White, Duanne Hafsteinsdóttir, Erla Gore, Damian Thorogood, Gordon Stark, Scott Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
author_facet |
White, Duanne Hafsteinsdóttir, Erla Gore, Damian Thorogood, Gordon Stark, Scott |
author_sort |
White, Duanne |
title |
Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
title_short |
Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
title_full |
Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
title_fullStr |
Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
title_full_unstemmed |
Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments |
title_sort |
formation and stability of pb-, zn- cu-po4 phases at low temperatures: implications for heavy metal fixation in polar environments |
publishDate |
2011 |
url |
https://researchprofiles.canberra.edu.au/en/publications/748bc5c3-dbe5-4d49-a0f4-51ca41996b8a https://doi.org/10.1016/j.envpol.2011.09.035 https://researchsystem.canberra.edu.au/ws/files/9370449/1_s2.0_S0269749111005616_main.pdf |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
White , D , Hafsteinsdóttir , E , Gore , D , Thorogood , G & Stark , S 2011 , ' Formation and stability of Pb-, Zn- Cu-PO4 phases at low temperatures: Implications for heavy metal fixation in polar environments ' , Environmental Pollution , vol. 161 , pp. 143-153 . https://doi.org/10.1016/j.envpol.2011.09.035 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2011.09.035 |
container_title |
Environmental Pollution |
container_volume |
161 |
container_start_page |
143 |
op_container_end_page |
153 |
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1799470549083095040 |