Method of determining loosely bound compounds of heavy metals in the soil

Minkina, Tatiana; Mandzhieva, Saglara; Burachevskaya, Marina; Bauer, Tatiana; Sushkova, Svetlana

doi:10.1016/j.mex.2018.02.007

Cited by 58 publications

(26 citation statements)

References 5 publications

(5 reference statements)

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“…The total content of HMs in soils was determined by the X-ray fluorescence method. The mobile compounds of the element were transferred into the solution from the soil by parallel extractions using the reagents following the method suggested by Minkina et al: 31 (1) 1 N ammonium acetate buffer (NH 4 Ac) pH 4.8 (soil/solution ratio = 1:5, extraction time: 18 h), which transfers exchangeable forms of metals characterizing their actual mobility into the solution; and (2) a 1% solution of ethylenediaminetetraacetic acid (EDTA) in NH 4 Ac pH 4.8 (soil/solution ratio = 1:5, extraction time: 18 h), which presumably transfers relatively weak metal complexes of metals into the solution along with their exchangeable forms.…”

Section: Objects and Methodsmentioning

confidence: 99%

Comparison of Heavy Metal Content in Artemisia austriaca in Various Impact Zones

et al. 2020

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A study on Artemisia austriaca of two anthropogenically heavy metal-polluted impact zones of the Rostov region, namely Lake Atamanskoye and Novocherkasskaya Power Station, was conducted. The influence of soil pollution on the Pb, Zn, and Cu accumulation in various organs of A. austriaca , which is widespread in the studied territories, was established. An extremely high level of Zn content (3051 mg/kg) was observed in the soils of the impact zone of Lake Atamanskoe, as well as an excess over the maximum permissible level for Pb and Cu (32 and 132 mg/kg accordingly). The distribution coefficient (DC) of heavy metal translocation showed the highest mobility of Zn (DC ≥ 1 in 9 out of 11 sites) and the smallest of Pb (DC ≥ 1 in 4 out of 11 sites) in plants of the Novocherkasskaya Power Station impact zone. The zone of increased pollution around Lake Atamanskoye was 1.5 km, which was much smaller than the Novocherkasskaya Power Station zone of high pollution (5 km). However, vehicle emissions accumulated in the soil over the past decades had a greater effect on the Pb translocation than atmospheric emissions of the enterprise.

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Section: Objects and Methodsmentioning

confidence: 99%

Comparison of Heavy Metal Content in Artemisia austriaca in Various Impact Zones

et al. 2020

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“…The study of the mechanisms of Cu immobilization in Fluvisol after the introduction of a carbonaceous sorbent was carried out using a combined fractionation scheme (Minkina et al, 2013), which makes possible to determine the composition of loosely (LB) and strongly bound (SB) HM-containing compounds in details, comparing other methods and follow the dynamics of the bound strength of metals and main soil components. This scheme is based on a combination of the results obtained by the Tessier method (Tessier et al, 1979) and parallel extractions (Minkina et al, 2018). The content of metal in fractions included in LB and SB groups of compounds was determined by the analytical and computational methods (Figure 3).…”

Section: Results Discussionmentioning

confidence: 99%

Mechanisms of copper immobilization in Fluvisol after the carbon sorbent applying

Bauer¹,

Minkina²,

Sushkova³

et al. 2020

Eurasian Journal of Soil Science (Ejss)

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Biochar is widely used sorbent for soil remediation but the mechanism of its effect on immobilization of metals and particular processes of metal transformation are still unclear. We designed an incubation experiment to investigate the impact of wood biochar to copper (Cu) contamination in Calcaric Fluvisols Loamic. The efficiency of biochar implementation for reduction of Cu mobility in soil has been studied using combined method of heavy metal fractioning (Minkina et al., 2013). It was shown that the use of sorbent into polluted soil results in the change of fraction-group composition of metal compounds, fixation of Cu due to reduction of weakly bound forms and increase of the part of residual and metal fractions strongly bound with organic matter. Decrease of pollutant mobility occurs along an increase of the dose of a sorbent. The greater effect was observed after use of biochar in the concentration 2.5 %. Thus, the present study demonstrates the possible remediation of soil contaminated by heavy metals using biochar and provides a particular strategy for remediation of soils contaminated with Cu.

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“…AAB with a pH of 7.0 is used to determine the content of mobile metal forms in most of the international protocols [17,30,31]. At the same time, the technique of extracting with AAB at pH of 4.65-4.8 is conventional in Russian soil science [12,14]. Thus, we conducted the AAB extraction of elements in the wide pH range (3.7-7.8) and studied the effect of pH on the content of metals in the industrially polluted peat soil.…”

Section: Discussionmentioning

confidence: 99%

“…Accordingly, AAB extracts more metals than ammonium and acetic acid solutions separately. This feature ensures that not only mobile, but also weakly sorbed metal compounds, can be extracted during the soil treatment with AAB [14].…”

Section: Metal Fraction Extractant Mechanism Of Extraction Migration mentioning

confidence: 99%

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Sequential Extraction of Potentially Toxic Metals: Alteration of Method for Cu-Ni Polluted Peat Soil of Industrial Barren

Slukovskaya

Kremenetskaya

Drogobuzhskaya

et al. 2020

Toxics

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An evaluation of fraction composition and transformation of metal compounds emitted by metal ore processing enterprises and accumulated in soils is crucial for assessing the environmental risks of pollution and ecosystem benefit of remediation. The aim of this study was to develop a suitable sequential fractional procedure for metal pollutants for the peat soils matrix in the impact zone of a Cu-Ni smelter. Three experiment series were performed: (a) the study of the effect of ammonium acetate buffer pH in the range of 3.7–7.8 on the soil metal extraction; (b) the study of the effect of additional volume and frequency of soil treatment with solutions on the content of water-soluble, ammonium acetate extractable, and 0.1 N HNO3 extractable fractions; and, (c) the determination of the metal fraction composition in the modified technique. Soil treatment with ammonium acetate buffer with a pH range of 4.5–5.5 was the most appropriate for the determination of mobile compounds of Cu and other metals in highly polluted peat soil. Triple soil treatment with water and ammonium acetate is necessary for the complete extraction of the water-soluble and exchangeable fractions, respectively. Additionally, we propose a procedure of full extraction of the exchangeable metal fraction from peat soils while using single treatment with 0.1 N HNO3. This scheme allows evaluating geochemical mobility of metals and current environmental harm of polluted soils with a high content of organic matter.

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Method of determining loosely bound compounds of heavy metals in the soil

Abstract: Graphical abstract

Cited by 58 publications

References 5 publications

Comparison of Heavy Metal Content in Artemisia austriaca in Various Impact Zones

Comparison of Heavy Metal Content in Artemisia austriaca in Various Impact Zones

Mechanisms of copper immobilization in Fluvisol after the carbon sorbent applying

Sequential Extraction of Potentially Toxic Metals: Alteration of Method for Cu-Ni Polluted Peat Soil of Industrial Barren

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