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Erschienen in: Environmental Earth Sciences 10/2021

01.05.2021 | Original Article

Speciation and correlation of boron and lithium in surficial sediments of the eastern and western Taijinar Salt Lake

verfasst von: Baolan Li, Jun Wu, Leiming Li

Erschienen in: Environmental Earth Sciences | Ausgabe 10/2021

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Abstract

The eastern/western Taijinar Salt Lake in Qaidam Basin is rich in lithium and boron resources. Chemical speciation of boron and lithium is conducive to identify the migration way and enrichment of heavy metals which might cause certain effects on the environment of salt-lake area. A total of 28 surface sediment samples were collected from the Taijinar Salt Lake in June of 2020 to investigate the distribution, speciation and sources of boron and lithium in salt-lake sediments. The results showed that the average content of boron/lithium was low with value of 1.6/3.4 µg kg−1, while that of the other elements in sediments ranging from 0.035 µg kg−1 (Cd) to 48.20 mg kg−1 (As) by following the order of As > Pb > Hg > Zn > Cr > Cd. Boron and lithium in sediments were mainly bound to Fe–Mn oxide and residual fractions with the average proportion of 29.87% and 35.36% for boron as well as 32.18% and 31.43% for lithium. Pb mainly existed in carbonate and residual fraction, while Zn mainly existed in the Fe–Mn oxide and residual bound with average value of 40.56% and 43.32%, respectively. Hg/Cr mainly existed in the residual with the average value of 58.68%/84.18%, while Cd mainly existed in the Fe–Mn oxide and residual fraction with an average proportion of 26.52% and 30.89%, respectively. As mainly existed in Fe–Mn oxide, residual, and organic fraction with an average proportion of 30.20%, 32.61% and 21.92%, respectively. Elements including Zn, Cr and Pb had a certain influence on the speciation of boron and lithium based on the correlation analysis. The enrichment of Cd, Cr and Pb might be mainly caused by anthropogenic sources. The findings of this study will provide some basic information on the important elements including lithium and boron in the salt-lake areas.

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Literatur
Metadaten
Titel
Speciation and correlation of boron and lithium in surficial sediments of the eastern and western Taijinar Salt Lake
verfasst von
Baolan Li
Jun Wu
Leiming Li
Publikationsdatum
01.05.2021
Verlag
Springer Berlin Heidelberg
Erschienen in
Environmental Earth Sciences / Ausgabe 10/2021
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI
https://doi.org/10.1007/s12665-021-09689-1

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