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090 _a652276
100 _a20161213a2016 k y0engy50 ba
101 0 _aeng
102 _aRU
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aThermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia)
_fO. L. Gaskova [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 1163 (14 tit.)]
330 _aHighly 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 ?g/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 <5 and >8 (the area of U sorption), As may be removed by simple filtering of solutions from the suspension upon additional coagulation.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tDoklady Earth Sciences
_d1933-
463 _tVol. 465, iss. 1
_v[P. 1159-1163]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aтермодинамическое моделирование
610 1 _aуран
610 1 _aмышьяк
610 1 _aХяргас-Нур
610 1 _aозера
610 1 _aМонголия
701 1 _aGaskova
_bO. L.
_gOlga
701 1 _aIsupov
_bV. P.
_gVitaly
701 1 _aVladimirov
_bA. G.
_gAlexander
701 1 _aShvartsev
_bS. L.
_cRussian hydrogeologist, Doctor of Geological and Mineralogical sciences
_cProfessor of the TPU, Member of the Academy of Natural sciences
_f1936-
_gStepan Lvovich
_2stltpush
_3(RuTPU)RU\TPU\pers\24144
701 1 _aKolpakova
_bM. N.
_chydrogeologist
_cassistant Professor of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences
_f1987-
_gMarina Nikolaevna
_2stltpush
_3(RuTPU)RU\TPU\pers\32555
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра гидрогеологии, инженерной геологии и гидрогеоэкологии (ГИГЭ)
_h100
_2stltpush
_3(RuTPU)RU\TPU\col\18664
801 2 _aRU
_b63413507
_c20171026
_gRCR
856 4 _uhttp://dx.doi.org/10.1134/S1028334X15110094
942 _cCF