High specific activity of radium isotopes in baryte from the Czech part of the Upper Silesian Basin - An example of spontaneous mine water treatment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F20%3A10243768" target="_blank" >RIV/61989100:27240/20:10243768 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27350/20:10243768 RIV/61989100:27730/20:10243768
Result on the web
<a href="https://www.mdpi.com/2075-163X/10/2/103" target="_blank" >https://www.mdpi.com/2075-163X/10/2/103</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/min10020103" target="_blank" >10.3390/min10020103</a>
Alternative languages
Result language
angličtina
Original language name
High specific activity of radium isotopes in baryte from the Czech part of the Upper Silesian Basin - An example of spontaneous mine water treatment
Original language description
Radium-bearing barytes (radiobarytes) have been known since the beginning of the 20th century. They are mainly found as precipitates of low-temperature hydrothermal solutions. In anthropogenic environments, they frequently occur as crusts on oil industry equipment used for borehole extraction, in leachates from uranium mill tailings, and as a by-product of phosphoric acid manufacturing. Recently, we recognized Ra-rich baryte as a precipitate in the water drainage system of a bituminous coal mine in the Czech part of the Upper Silesian Basin. The precipitate is a relatively pure baryte, with the empirical formula (Ba0.934Sr0.058Ca0.051Mg0.003)Σ1.046S0.985O4.000. The mean specific activity of 226Ra was investigated by the two-sample method and it equals 39.62(22) Bq/g, a level that exceeds known natural occurrences. The values for 228Ra and 224Ra are 23.39(26) Bq/g and 11.03(25) Bq/g. The radium content in the baryte is 1.071 ng/g. It is clear that the Ra-rich baryte results from the mixing of two different mine waters-brines rich in Ba, Sr, and isotopes 226Ra and 228Ra and waters that are affected by sulfide weathering in mine works. When this mixing occurs in surface watercourses, it could present a serious problem due to the half-life of 226Ra, which is 1600 years. If such mixing spontaneously happens in a mine, then the environmental risks will be much lower and will be, to a great, extent eliminated after the closure of the mine.
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
10504 - Mineralogy
Result continuities
Project
<a href="/en/project/LTC17051" target="_blank" >LTC17051: Mining the European Anthroposphere</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Minerals
ISSN
2075-163X
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
2
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000522452900018
EID of the result in the Scopus database
2-s2.0-85078852246