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Redox-driven geochemical partitioning of metal(loid)s in the iron-rich anoxic sediments of a recently flooded lignite mine pit: Lake Medard, NW Czechia

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00551903" target="_blank" >RIV/60077344:_____/21:00551903 - isvavai.cz</a>

  • Alternative codes found

    RIV/00025798:_____/21:00000133

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S2772416621000097?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2772416621000097?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.hazadv.2021.100009" target="_blank" >10.1016/j.hazadv.2021.100009</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Redox-driven geochemical partitioning of metal(loid)s in the iron-rich anoxic sediments of a recently flooded lignite mine pit: Lake Medard, NW Czechia

  • Original language description

    We evaluated the geochemical partitioning of Fe, Mn, As, V, and REE in sediments of a recently flooded open-cast lignite mine to interpret their response to recently established anoxia, and minor variations in the redox potential of its ferruginous bottom water column. Results from a sequential extraction scheme targeting reactive Fe mineral phases are combined with an assessment of sediment enrichment factors and REE systematics. Across the sediment pile metal(loid)s are being released from pre-existing authigenic phases as minor shifts in redox potential induce elemental immobilisation through co-precipitation with Fe into mineral phases of diverse reactivity. REE systematics confirms that minor oscillations in the water column’s redox state can trigger swift changes in the speciation of the redox-sensitive elements. The observed metal(loid)s enrichment in the sediments can either be considered an ecological risk, if a management scenario involving solely recreational purposes is conceived, but it can also be seen as a feasible source of critical metals (e.g., REE and V) that are amenable to sustainable, secondary metal recovery endeavours. By anticipating the fate of redox-sensitive metal(loid)s in our study site, we provide parameters useful to delineate management programmes of this and similar post-mining lakes.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>ost</sub> - Miscellaneous article in a specialist periodical

  • CEP classification

  • OECD FORD branch

    10502 - Oceanography

Result continuities

  • Project

    <a href="/en/project/GJ19-15096Y" target="_blank" >GJ19-15096Y: Microbially induced iron, nitrogen and phosphorus co-recycling and transient decoupling in aqueous ferruginous ecosystems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Hazardous Materials Advances

  • ISSN

    2772-4166

  • e-ISSN

  • Volume of the periodical

    3

  • Issue of the periodical within the volume

    November

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    12

  • Pages from-to

    100009

  • UT code for WoS article

  • EID of the result in the Scopus database