Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil. / Thomas, Glenna; Sheridan, Craig; Holm, Peter E.

In: Geoderma, Vol. 443, 116817, 2024.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Thomas, G, Sheridan, C & Holm, PE 2024, 'Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil', Geoderma, vol. 443, 116817. https://doi.org/10.1016/j.geoderma.2024.116817

APA

Thomas, G., Sheridan, C., & Holm, P. E. (2024). Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil. Geoderma, 443, [116817]. https://doi.org/10.1016/j.geoderma.2024.116817

Vancouver

Thomas G, Sheridan C, Holm PE. Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil. Geoderma. 2024;443. 116817. https://doi.org/10.1016/j.geoderma.2024.116817

Author

Thomas, Glenna ; Sheridan, Craig ; Holm, Peter E. / Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil. In: Geoderma. 2024 ; Vol. 443.

Bibtex

@article{1ab69d2a95c443afba921b55a53ccaf8,
title = "Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil",
abstract = "The mobility of rare earth elements (REE) and arsenic (As) from acid mine drainage (AMD) impacted soil was investigated in a column leaching study. AMD impacted soils from prominent gold and coal mining regions in South Africa were eluted with a 1 µM CaCl2 solution for 14 h and samples were collected at timed intervals corresponding to liquid to solid (L/S) ratios from 0 to 10. The results showed fast initial leaching (L/S < 5) leading to the leaching of 30–98 % of the total soil REE contents and 0.02–1.8 % of total soil As contents. The results show substantial indications of REE leachability and hence recovery from mining impacted soils. This has the potential to improve cost effectiveness of the remediation process. Conversely, As was found to be highly retained in the AMD impacted soils. This offers insights into the comparative conditions of leachability in AMD impacted soils. Further investigation into the mineral structures present in various AMD impacted soil media under leaching conditions is needed to fully explain the underlying geochemical factors responsible for the elements{\textquoteright} release.",
keywords = "Acid mine drainage, Arsenic, Critical elements, Leaching, Rare earth elements",
author = "Glenna Thomas and Craig Sheridan and Holm, {Peter E.}",
note = "Publisher Copyright: {\textcopyright} 2024",
year = "2024",
doi = "10.1016/j.geoderma.2024.116817",
language = "English",
volume = "443",
journal = "Geoderma",
issn = "0016-7061",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil

AU - Thomas, Glenna

AU - Sheridan, Craig

AU - Holm, Peter E.

N1 - Publisher Copyright: © 2024

PY - 2024

Y1 - 2024

N2 - The mobility of rare earth elements (REE) and arsenic (As) from acid mine drainage (AMD) impacted soil was investigated in a column leaching study. AMD impacted soils from prominent gold and coal mining regions in South Africa were eluted with a 1 µM CaCl2 solution for 14 h and samples were collected at timed intervals corresponding to liquid to solid (L/S) ratios from 0 to 10. The results showed fast initial leaching (L/S < 5) leading to the leaching of 30–98 % of the total soil REE contents and 0.02–1.8 % of total soil As contents. The results show substantial indications of REE leachability and hence recovery from mining impacted soils. This has the potential to improve cost effectiveness of the remediation process. Conversely, As was found to be highly retained in the AMD impacted soils. This offers insights into the comparative conditions of leachability in AMD impacted soils. Further investigation into the mineral structures present in various AMD impacted soil media under leaching conditions is needed to fully explain the underlying geochemical factors responsible for the elements’ release.

AB - The mobility of rare earth elements (REE) and arsenic (As) from acid mine drainage (AMD) impacted soil was investigated in a column leaching study. AMD impacted soils from prominent gold and coal mining regions in South Africa were eluted with a 1 µM CaCl2 solution for 14 h and samples were collected at timed intervals corresponding to liquid to solid (L/S) ratios from 0 to 10. The results showed fast initial leaching (L/S < 5) leading to the leaching of 30–98 % of the total soil REE contents and 0.02–1.8 % of total soil As contents. The results show substantial indications of REE leachability and hence recovery from mining impacted soils. This has the potential to improve cost effectiveness of the remediation process. Conversely, As was found to be highly retained in the AMD impacted soils. This offers insights into the comparative conditions of leachability in AMD impacted soils. Further investigation into the mineral structures present in various AMD impacted soil media under leaching conditions is needed to fully explain the underlying geochemical factors responsible for the elements’ release.

KW - Acid mine drainage

KW - Arsenic

KW - Critical elements

KW - Leaching

KW - Rare earth elements

U2 - 10.1016/j.geoderma.2024.116817

DO - 10.1016/j.geoderma.2024.116817

M3 - Journal article

AN - SCOPUS:85185398038

VL - 443

JO - Geoderma

JF - Geoderma

SN - 0016-7061

M1 - 116817

ER -

ID: 389414374