Geochemical interactions in the trace element–soil–clay system of treated contaminated soils by Fe-rich clays

Kypritidou, Zacharenia; Argyraki, Ariadne

doi:10.1007/s10653-020-00542-1

Cited by 12 publications

(9 citation statements)

References 59 publications

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“…The results of the plant available Pb and Zn concentrations (Table 4) show an overall increased least squares (LS) mean of the elements in the soils, which Kypritidou and Argyraki (2020) when observing the effects of Fe-rich clays on Pb, Zn and Cu. The increasing concentrations of some PTEs could be due to the isomorphous substitution of PTEs for other cations over time.…”

Section: Resultsmentioning

confidence: 97%

“…There has been growing interest in the remediation and use of amendments to decrease the plant availability of PTEs in contaminated soils. Plenty of research in this field has generated a wide range of literature focused on the amendments and remediation and stabilisation of contaminated soils (e.g., Basta & McGowen 2004;Arcon et al 2005;Kumpiene et al 2008;Alloway 2013;Xu et al 2017;Kypritidou & Argyraki 2020). The methods used for amending a contaminated soil depend on the elements present in the soil as well as the binding capacity the amendment possesses.…”

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confidence: 99%

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Effect of clay on the fractions of potentially toxic elements in contaminated soil

Vejvodová¹,

Drábek²,

Ash³

et al. 2020

Soil & Water Res.

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The aim of the study was to evaluate the effect of clay as an amendment to decrease the mobility and plant availability of potentially toxic elements (PTEs). Kaolinite and vermiculite were added at a 9% application rate to a contaminated garden soil from Kutná Hora. Half of the original soil was acidified by the addition of HNO<sub>3</sub>, to observe the effect of the pH on the adsorption of the PTEs. The samples were analysed four times over an eight-week period to evaluate the effect of the clay additions on the As, Cd, Pb and Zn plant availability and different fractions of the BCR sequential extraction. The results indicate that the PTEs were mainly bound by ion/cation exchange on the edges of the clay minerals and onto the Fe/Mn oxides and organic fractions in the soils. The significance (P < 0.05) of the pH was observed for the plant availability of the PTE, especially on the As and Cd. A comparison of the vermiculite in the form of chunks and as powder displayed the most statistically significant results, where the vermiculite powder significantly decreased the plant availability of the As, Cd and Pb, while the opposite effect was observed for the Zn.

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Section: Resultsmentioning

confidence: 97%

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confidence: 99%

Effect of clay on the fractions of potentially toxic elements in contaminated soil

Vejvodová¹,

Drábek²,

Ash³

et al. 2020

Soil & Water Res.

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“…It is often expressed as the degree of the stability of aggregates. Clay minerals shows high physical and chemical adsorption capacity, due to soil particles with negative charge and large surface [40]. Contrariwise to sandy soil, clay's unique mineralogy (pore structure, pore size and porosity) should be considered when investigating the adsorpability [39,40] gap [30,41].…”

Section: Introductionmentioning

confidence: 99%

“…Clay minerals shows high physical and chemical adsorption capacity, due to soil particles with negative charge and large surface [40]. Contrariwise to sandy soil, clay's unique mineralogy (pore structure, pore size and porosity) should be considered when investigating the adsorpability [39,40] gap [30,41]. The amount and the type of clay minerals in the soil, along with soil pH, organic matter and the presence of cations (e.g., Cu +2 and Zn +2 ) in drainage solution is essential to aggregate formation and soil health [27].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Contamination Management Caused by Copper and Zinc Cations Leaching and Their Impact on the Hydraulic Properties of a Sandy and a Loamy Clay Soil

Angelaki

Dionysidis

Sihag

et al. 2022

Land

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Soil hydraulic properties are crucial to agriculture and water management and depend on soil structure. The impact of Cu and Zn cations on the hydraulic properties of sandy and loamy clay soil samples of Central Greece, was investigated in the present study. Metal solutions with increased concentrations were used to contaminate the soil samples and the effect on hydraulic properties was evaluated, demonstrating the innovation of the current study. The soil samples were packed separately into transparent columns and the initial values of hydraulic conductivity, cumulative infiltration, infiltration rate and sorptivity were estimated. In order to evaluate soil adsorption, metal concentrations were measured at the water leachate. After the contamination of the soil samples, the hydraulic properties under investigation were determined again, using distilled water as the incoming fluid; the differences at the hydraulic parameters were observed. After doubling metal concentrations into the incoming solution of loamy clay soil, metal adsorption and the values of the hydraulic parameters increased significantly. Loamy clay soil showed interaction between the clay particles and the positive charge in the incoming fluid, which led to a possible increase in aggregation. Furthermore, aggregation may led to pore generation. Contamination of sandy soil exhibited no impact on aggregation and soil structure. In order to evaluate the differences on the hydraulic properties and soil structure, the experimental points were approximated with two infiltration models.

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“…Several studies have found an increase in metal contents in the estuarine soil and sediments soon after the arrival of the Fe-rich tailings . Although the Fe-rich tailings were reported to be free of metals (Davila et al, 2020), their main constituent, Fe oxyhydroxides of varying crystallinity, are known for their high metal retention capacity Kypritidou and Argyraki, 2020). found total contents of Ni and Cr in the Rio Doce estuarine soils to be significantly higher than the threshold levels for contaminated soil set under the Brazilian environmental laws (CONAMA, 2009).…”

Section: Introductionmentioning

confidence: 99%

Iron geochemistry in tropical estuarine soils affected by anthropic and natural disasters

Queiroz¹

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Geochemical interactions in the trace element–soil–clay system of treated contaminated soils by Fe-rich clays

Cited by 12 publications

References 59 publications

Effect of clay on the fractions of potentially toxic elements in contaminated soil

Effect of clay on the fractions of potentially toxic elements in contaminated soil

Assessment of Contamination Management Caused by Copper and Zinc Cations Leaching and Their Impact on the Hydraulic Properties of a Sandy and a Loamy Clay Soil

Iron geochemistry in tropical estuarine soils affected by anthropic and natural disasters

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