Distribution and geological sources of selenium in environmental materials in Taoyuan County, Hunan Province, China

Ni, Runxiang; Luo, Kui; Tian, Xinglei; Yan, Songgui; Zhong, Jitai; Liu, Maoqiu

doi:10.1007/s10653-015-9772-2

Cited by 39 publications

(14 citation statements)

References 18 publications

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“…The detailed process for dissolution and calibration of coal samples have been documented by Luo (2011) and Ni et al. (2016).…”

Section: Geological Settings Materials and Methodsmentioning

confidence: 99%

“…The detailed process for dissolution and calibration of coal samples have been documented by Luo (2011) and Ni et al (2016). GBW11103J, GBW 11112, and GBW11115 of the China coal reference standards were used in analyzing the sample, as well as two groups of parallel samples.…”

Section: Methodsmentioning

confidence: 99%

“…Abbreviation: inductively coupled plasma optical emission spectrometer (ICP-MS), inductively coupled plasma mass spectrometry (ICP-OES), and hydride generation atomic fluorescence spectrometer (HG-AFS).The detailed process for dissolution and calibration of coal samples have been documented byLuo (2011) andNi et al (2016). GBW11103J, GBW 11112, and GBW11115 of the China coal reference standards were used in analyzing the sample, as well as two groups of parallel samples.…”

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confidence: 99%

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Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province

Long

Zhang

Luo

2019

Energy Exploration & Exploitation

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With the principal aim of understanding the element variations in Carboniferous coal from eastern Yunnan province of China, the concentration of 48 elements in 16 coal samples were determined. It was found that, (1) Se (0.76–5.13 mg/kg), Mo (0.29–46.71 mg/kg), As (0.96–25.38 mg/kg), Cr (3.89–1152 mg/kg), Li (2.92–109.00 mg/kg), and U (0.09–39.23 mg/kg) in the studied coal samples are 2–43 times more than those of the upper continental crust (UCC). (2) Arithmetic mean of Cr, Sc, Mo, As, Ga, U, V, and Cu are higher than those in China coals average, while Na, P, Al, Ti, Ba, Bi, Tl, and Sr are lower. The average content of Cr in the studied coals is 352 mg/kg, which is 22.49, 20.37, and 23.09 times higher than that of China coals average, World hard coals and USA coals average, respectively. (3) In terms of the correlation between element concentration and ash yield, all the elements were accordingly divided into five groups. In addition, three coal samples (No. KM50, KM64 and LM61) were found to have relatively high Cr concentration as 1055, 1072, and 1152, respectively. Analysis of these three coal samples shows an M-type REE enrichment pattern (UCC normalized), with positive Eu abnormlies of 2.96, 2.52, and 3.96, respectively. This pattern is similar to that in Carboniferous ophiolite and primitive mantle, suggesting that they may have the same source of matter. High Cr coal has a potential harmful impact on the environment and human beings during the coal combustion and utilization. Besides, Se and Mo are 2.12 and 8.65 mg/kg on average, respectively, which are 7.31 and 5.08 times more than those in Chinese soil average, thus Carboniferous coal with low Cr-As but high Se-Mo should be considered as potential fertilizer for local crops.

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“…The detailed process for dissolution and calibration of coal samples have been documented by Luo (2011) and Ni et al. (2016).…”

Section: Geological Settings Materials and Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province

Long

Zhang

Luo

2019

Energy Exploration & Exploitation

Self Cite

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“…In addition, anomalies such as Hg, Pb, Zn, Cd, Ag, Sb, and TOC are associated with Se anomalies. Because of the weathering of high-Se layers, Se concentrations in the environment are strongly connected to those in exposed rock [15,16]. It is well established that elevated concentration of Se trended to occur in black rock series, such as Precambrian in Ziyang, Shaanxi Province [17], and Maokou Formation of Permian in Enshi, Hubei Province [18].…”

Section: Introductionmentioning

confidence: 99%

Distribution Pattern and Enrichment Mechanism of Selenium in Topsoil in Handan Se-Enriched Belt, North China

et al. 2022

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Selenium (Se) is an essential trace element for human health with crucial biological functions. In this study, Se concentrations and physicochemical properties of soils in central and western Handan were determined to investigate their spatial distribution, enrichment degree, influencing factor, and geological source. The results show that: (1) Se concentrations vary from 0.00 to 1.95 μg/g, with an average of 0.45 μg/g, which exceed the mean of Se in soils in China (0.29 μg/g) and Hebei Plain (0.21 μg/g). (2) A continuous and irregular ring-like area showing significant enrichment of Se could be identified in Handan city, Yongnian District, Wu’an City, and Fengfeng Mining District. It can be defined as a positive abnormal Se zone, which is mainly located in the hilly area in the west of Handan City and east of Taihang Mountains, and the plains near Handan City. (3) Comprehensively, Se enrichment in the soil is principally affected by rock weathering, mining activities, and coal combustion. (4) As far as the single-factor pollution index (SFPI) is concerned, most of the study areas are in the safety domain and slightly polluted domain and are at low ecological risk. According to the Nemerow integrated pollution index (NIPI), the moderately and seriously polluted domain are distributed in Handan City, Fengfeng Mining District, and other central areas.

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“…Its environmental mobility and bioavailability are therefore one of the concerns of environmental toxicologists, since it is essential for organisms, yet is highly toxic under certain conditions [4][5][6][7][8]. The primary natural geogenic sources of selenium are phosphatic, organic-rich sedimentary rocks [9], carbonate rocks and soluble salts in marine sediments [10]. The main anthropogenic sources include excavated rocks from coal mining, tunnel construction and underground space development [11,12].…”

Section: Introductionmentioning

confidence: 99%

The Effect of High Selenite and Selenate Concentrations on Ferric Oxyhydroxides Transformation under Alkaline Conditions

Matulová

Bujdoš

Miglierini

et al. 2021

IJMS

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Iron-based nanomaterials have high technological impacts on various pro-environmental applications, including wastewater treatment using the co-precipitation method. The purpose of this research was to identify the changes of iron nanomaterial’s structure caused by the presence of selenium, a typical water contaminant, which might affect the removal when the iron co-precipitation method is used. Therefore, we have investigated the maturation of co-precipitated nanosized ferric oxyhydroxides under alkaline conditions and their thermal transformation into hematite in the presence of selenite and selenate with high concentrations. Since the association of selenium with precipitates surfaces has been proven to be weak, the mineralogy of the system was affected insignificantly, and the goethite was identified as an only ferric phase in all treatments. However, the morphology and the crystallinity of ferric oxyhydroxides was slightly altered. Selenium affected the structural order of precipitates, especially at the initial phase of co-precipitation. Still, the crystal integrity and homogeneity increased with time almost constantly, regardless of the treatment. The thermal transformation into well crystalized hematite was more pronounced in the presence of selenite, while selenate-treated and selenium-free samples indicated the presence of highly disordered fraction. This highlights that the aftermath of selenium release does not result in destabilization of ferric phases; however, since weak interactions of selenium are dominant at alkaline conditions with goethite’s surfaces, it still poses a high risk for the environment. The findings of this study should be applicable in waters affected by mining and metallurgical operations.

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Distribution and geological sources of selenium in environmental materials in Taoyuan County, Hunan Province, China

Abstract: The selenium (Se) distribution and geological sources in Taoyuan County, China, were determined by using hydride generation atomic fluorescence spectrometry on rock, soil, and food crop samples collected from various geological regions within the county.

Cited by 39 publications

References 18 publications

Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province

Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province

Distribution Pattern and Enrichment Mechanism of Selenium in Topsoil in Handan Se-Enriched Belt, North China

The Effect of High Selenite and Selenate Concentrations on Ferric Oxyhydroxides Transformation under Alkaline Conditions

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