Geochemistry and environmental impact of neutral drainage from a uraniferous coal waste heap
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73587517" target="_blank" >RIV/61989592:15310/18:73587517 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0375674217308567" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0375674217308567</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.gexplo.2018.05.001" target="_blank" >10.1016/j.gexplo.2018.05.001</a>
Alternative languages
Result language
angličtina
Original language name
Geochemistry and environmental impact of neutral drainage from a uraniferous coal waste heap
Original language description
The objective of this study was to assess to what extent the burnt and unburnt parts of the heap contribute to contamination of the local drainage system over a period lasting >40 years after the end of the mining. The water collected at the foot of the heap in periods of low drainage contains high levels of aqueous sulfate (up to 400 mg/L), carbonate (up to 208 mg/L), U (up to 585 μg/L), Se (up to 50 μg/L), and Mo (up to 28 μg/L). On the other hand, the concentrations of these elements are lower in periods of high drainage. The pH values in the water drainage are in the near-neutral range, and uranium is mostly present as U(VI) with dominant phosphate and carbonate complexes in the order UO2(HPO4)22− > UO2(CO3)22− > UO2(CO3)34− > UO2CO30. The concentrations of sulfate and trace elements rapidly decrease with increasing distance from the heap as a result of dilution due to influx of water from uncontaminated streams.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
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 Geochemical Exploration
ISSN
0375-6742
e-ISSN
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Volume of the periodical
191
Issue of the periodical within the volume
AUG
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
21
Pages from-to
1-21
UT code for WoS article
000436826000001
EID of the result in the Scopus database
2-s2.0-85047086509