Arsenic and iron speciation and mobilization during phytostabilization of pyritic mine tailings.

ABSTRACT: Particulate and dissolved metal(loid) release from mine tailings is of concern in (semi-) arid environments where tailings can remain barren of vegetation for decades and, therefore, become highly susceptible to dispersion by wind and water. Erosive weathering of metalliferous tailings can lead to arsenic contamination of adjacent ecosystems and increased risk to public health. Management via phytostabilization with the establishment of a vegetative cap using organic amendments to enhance plant growth has been employed to reduce both physical erosion and leaching. However, prior research suggests that addition of organic matter into the oxic weathering zone of sulfide tailings has the potential to promote the mobilization of arsenate. Therefore, the objective of the current work was to ass

SUBMITTER: Hammond CM 

PROVIDER: S-EPMC7556726 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature