Thermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia)

O. L. Gaskova, V. P. Isupov, A. G. Vladimirov, S. L. Shvartsev, M. N. Kolpakova

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Highly mineralized closed lakes on the territory of ore regions of Mongolia are of special interest in relation to the search for nonconventional sources of metals. Water of soda Shaazgai-Nuur Lake contains ~1 mg/L U, and the content of the undesirable admixture of As is up to 300 μg/L. Uranium and Arsenic speciation in solution and in the bottom sediments of the lake was estimated using thermodynamic modeling, and a method of their separation was suggested. Calculation of the models of sorption of these elements by goethite and calcite showed that at pH 9.4 typical of natural water it could be effective only at a high concentration of FeOOH sorbent. In this case, at pH 8 (the area of U sorption), As may be removed by simple filtering of solutions from the suspension upon additional coagulation.

Original languageEnglish
Pages (from-to)1159-1163
Number of pages5
JournalDoklady Earth Sciences
Volume465
Issue number1
DOIs
Publication statusPublished - 1 Nov 2015

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arsenic
uranium
thermodynamics
lake
sorption
modeling
goethite
coagulation
calcite
water
metal
sediment
calculation
ore
method

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Earth and Planetary Sciences(all)

Cite this

Thermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia). / Gaskova, O. L.; Isupov, V. P.; Vladimirov, A. G.; Shvartsev, S. L.; Kolpakova, M. N.

In: Doklady Earth Sciences, Vol. 465, No. 1, 01.11.2015, p. 1159-1163.

Research output: Contribution to journalArticle

Gaskova, O. L. ; Isupov, V. P. ; Vladimirov, A. G. ; Shvartsev, S. L. ; Kolpakova, M. N. / Thermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia). In: Doklady Earth Sciences. 2015 ; Vol. 465, No. 1. pp. 1159-1163.
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