Schwermetalle in Böden von ausgewählten Standorten in der Steiermark

Jelecevic, Anto; Wellacher, Martin; Sager, Manfred; Liebhard, P.

doi:10.1007/s35152-018-0049-9

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…In Austria due to construction works, large amounts of excavated soils and subsoils do not meet the requirements for recycling (due to exceeding of permitted values for heavy metals) and have to be landfilled (Jelecevic et al, 2018(Jelecevic et al, , 2019. Although the Federal Management Waste allows in some cases higher values for geogenic heavy metals this generalized expert opinion does not provide a method how the possible origin of heavy metals can be determined.…”

Section: Introductionmentioning

confidence: 99%

“…Although the Federal Management Waste allows in some cases higher values for geogenic heavy metals this generalized expert opinion does not provide a method how the possible origin of heavy metals can be determined. It is therefore assumed that a certain amount of excavated material is not adequately classified and is disposed of in landfills (Jelecevic et al, 2018). The aim of this work, was to separate four particle size fractions; coarse sand/2000-200 µm, fine sand/200-63 µm, silt/63-2 µm and clay/< 2 µm from soils mainly at historical mining and smelting sites in Austria and to determine the total and available content of these fractions which should help to distinguish the possible origins and the toxic potential of each metal.…”

Section: Introductionmentioning

confidence: 99%

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Partitioning of heavy metals in different particle-size fractions of soils from former mining and smelting locations in Austria

Jelecevic¹,

Sager²,

Vollprecht³

et al. 2021

Eurasian Journal of Soil Science (Ejss)

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Austrian soils from mainly historical mining and smelting sites were separated into four particle size fractions (coarse sand, fine sand, silt and clay) to distinguish the possible origins and pathways of heavy metals. Each fraction was extracted with aqua regia to determine the pseudo-total content and with CaCl2 to determine the available content of metals. The soil mineralogical composition of the < 2000 µm fraction was determined by X-ray diffraction (XRD). In general, the concentration of heavy metals and metalloids increased as soil particle size decreased. Based on the correlations of concentrations vs. the log of the mean particle size, obtained from each fraction the presence of unweathered allochthonous minerals were especially present in samples from locations at Rabenstein for most trace elements, at Arzwaldgraben for Cd, Co, Mn and Pb, at Johnsbach for Cd, Co, Mn, Pb and Zn and at Pilgersdorf for Cr. The opposite trend was found for the samples of the industrial area of Arnoldstein, Zeltweg and Hinterlobming suggesting that their metal load was derived from the discharge of effluents or from weathered phases.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Partitioning of heavy metals in different particle-size fractions of soils from former mining and smelting locations in Austria

Jelecevic¹,

Sager²,

Vollprecht³

et al. 2021

Eurasian Journal of Soil Science (Ejss)

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Kinetics of lead release from soils at historic mining and smelting sites, determined by a modified electro-ultrafiltration

Jelecevic

Horn

Eigner³

et al. 2019

Plant Soil Environ.

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Within a pilot study, after pedological and mineralogical characterization, various kinetic models were tested to fit lead (Pb)-mobilization kinetics from soils at historic mining and smelting sites. Pb mobilization was obtained by modified electro-ultrafiltration (EUF) after addition of diethylenetriaminepentaacetic acid (DTPA) at variable conditions of extraction. 10 fractions were sequentially produced, under mild conditions at 20°C/200 V (to simulate an initial release) for fractions 1–5, and subsequently harder conditions at 80°C/400 V (to simulate a long-term release) for fractions 6–10. The special samples treated within this work yielded higher extraction rates within the first runs. Closest fits in terms of the coefficient of determination (R2) were obtained from the 2nd order polynomial model y = a + bt + ct2, and in terms of re-calculated results by the parabolic equation y = a + b √t. The fitted constants obtained by the modified EUF method correlated better with soil pH than with organic carbon and clay contents. From this, it remains open, whether the dissolution of the Pb-minerals in the electric field or concentration resp. diffusion of the DTPA is rate-determining.

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Modelling the Plant Uptake of Metals from Release Rates Obtained by the EUF Method

Sager

2021

Plants

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In this study, soil dissolution kinetics were evaluated to predict the metal uptake of lettuce plants under varying conditions of fertilisation and metal pollution. Velocities and time dependencies of soil dissolution obtained by electro-ultrafiltration (EUF), which prevents back reaction, were modelled in three ways, obtained from suspensions in 0.002 M DTPA at determined soil pH levels, for cases in which sampling versus time led to decreasing concentrations. The models yielded a maximum achievable concentration, a timespan needed for it to be reached, a slope, and an intercept of the respective fitted curves. Three geogenically metalliferous soil samples and one ambient soil sample, both as originals, fertilised with PK or soaked with a Cd-Ni-Pb solution, were used as solid samples. The resulting kinetic parameters were correlated with the amounts absorbed by lettuce plants grown with these substrates in pot experiments, which yielded fairly good correlations with Zn, but also with Li and Sr, as well as Ni and Pb, mainly because of differences due to the addition of a metallic salt solution. Plant growth was hardly influenced by the additions.

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Schwermetalle in Böden von ausgewählten Standorten in der Steiermark

Cited by 3 publications

References 14 publications

Partitioning of heavy metals in different particle-size fractions of soils from former mining and smelting locations in Austria

Partitioning of heavy metals in different particle-size fractions of soils from former mining and smelting locations in Austria

Kinetics of lead release from soils at historic mining and smelting sites, determined by a modified electro-ultrafiltration

Modelling the Plant Uptake of Metals from Release Rates Obtained by the EUF Method

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