Retention of Cd by soil constituents under different environmental conditions

Kurek, Ewa; Kaczorowska, R.; Nadulska, Iwona; Ochal, Małgorzata; Puacz, Elżbieta; Patkowska, Elżbieta

doi:10.1016/0045-6535(96)00170-1

Cited by 11 publications

(8 citation statements)

References 14 publications

Supporting

Mentioning

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“…These authors also found that amount of Cd sorbed by mycelia was dependent on the Cd concentration in the solution, and that even at the highest metal concentration used, no saturation effect could be observed. The results presented in this paper, our earlier studies (Kurek et al, 1996), and the results reported by Morley and Gadd (1995) indicated that Cd sorbing capacity of fungi is much higher than that of abiotic soil constituents such as kaolinite and montmorillonite and also that of starved bacterial biomass. Fungi belonging to various genera have a cell wall built of different polymers containing different functional groups and differing in charge distribution (Gadd, 1990;Volensky and Schiewer, 1998).…”

Section: Discussionsupporting

confidence: 56%

“…There are many reports on metal sorption by individual soil compounds but they mostly ignore the fungi (Bellin and Rao, 1993;Kurek et al, 1996). Even less attention has been paid to studies on retention of metal immobilized by fungi under in vitro and soil conditions (Bellin and Rao, 1993;Ledin, 2000).…”

Section: Discussionmentioning

confidence: 98%

“…The soil extract was prepared according to the procedure described by Kurek et al (1996). Spent media were obtained by centrifugation of the fungal culture (Martin medium) after 7 days of incubation at 28 jC.…”

Section: Preparation Of Soil Extract and Spent Medium Treatmentmentioning

confidence: 99%

“…Low-molecularweight compounds serve as carriers of Cd in the solution, and high-molecular-weight organic compounds function as a sink for Cd (Huang and Germida, 2002). Besides non-living organic matter, microorganisms with enormous surface areas on which metal ions can be immobilized exert an influence on Cd concentration in the soil solution (Morley and Gadd, 1995;Kurek et al, 1996;Ledin, 2000). Fungi are one of the important components of soil organic matter.…”

Section: Introductionmentioning

confidence: 99%

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In vitro remobilization of Cd immobilized by fungal biomass

Kurek

Majewska

2004

Geoderma

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Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 98%

Section: Preparation Of Soil Extract and Spent Medium Treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In vitro remobilization of Cd immobilized by fungal biomass

Kurek

Majewska

2004

Geoderma

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“…Analysis of spot B by μXRD supports bulk XRD data showing muscovite present (Fig. 5b) These clay minerals are known to exchange cations, such as magnesium and potassium, with other heavy metals, possibly aiding in metal sequestration (Kurek et al 1996;Farquhar et al 1997;Lothenbach et al 1997). Zn was recently shown to coprecipitate with interlayer Al 3+ cations to form a Zn-containing hydroxyl-Al layer on the basal plane of montmorillonite (Schlegel and Manceau 2007).…”

Section: Mineral Identificationmentioning

confidence: 60%

Heavy Metal–Mineral Associations in Coeur d’Alene River Sediments: A Synchrotron-Based Analysis

Moberly

Borch

Sani

et al. 2008

Water Air Soil Pollut

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Nearly a century of mining activities upstream have contaminated Lake Coeur d'Alene and its tributaries with Pb, Zn, and other heavy metals. Heavy metal concentrations in sediments of the Coeur d'Alene watershed have been shown to be inversely proportional to the sediment size fraction; thus, analysis on a very small scale is essential to determine the mobility and stability of heavy metals in this environment. Micron-scale synchrotron-based methods were used to determine the association of heavy metals with solid phases in sediments of the Coeur d'Alene River. Bulk X-ray diffraction (XRD), extended X-ray absorption fine structure spectroscopy, and synchrotron-based microfocused XRD combined with microfocused X-ray fluorescence mapping indicate the presence of crystalline Pb-and

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Lead Adsorption on a Soil: A Polarographic Study

Trancoso

Santos²,

Gonçalves³

2004

Electroanalysis

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The adsorption of lead by a non-contaminated loamy sand soil (Guarda, Portugal) was studied by voltammetric titrations using differential pulse polarography for pH values of 6.0, 6.8 and 7.2 and I of 0.5, 0.1 and 0.01 mol L À1. After lead or soil additions, residual lead in solution was measured in the presence of the soil particles after an equilibration period, thus with minimum sample manipulation. The characteristics of the surface groups were studied by acid base potentiometric titrations. Lead retention by the soil is influenced both by pH and ionic strength of the medium. From the voltammetric data surface constants and total available binding groups have been estimated according to a complex surface model for the different experimental conditions and the results interpreted in terms of the surface characteristics of the soil and the support medium. Surface binding capacities in the range 1 to 70 mmol Pb kg À1 were found depending on the pH and the ionic strength. The behavior found is in agreement with what is known in soil chemistry thus supporting the conclusion that voltammetric methods are quite appropriate for determining the extent of interaction between metal ions and soils.

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Retention of Cd by soil constituents under different environmental conditions

Cited by 11 publications

References 14 publications

In vitro remobilization of Cd immobilized by fungal biomass

In vitro remobilization of Cd immobilized by fungal biomass

Heavy Metal–Mineral Associations in Coeur d’Alene River Sediments: A Synchrotron-Based Analysis

Lead Adsorption on a Soil: A Polarographic Study

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