Mobility of major-, minor- and trace elements in solutions of a planosolic soil: Distribution and controlling factors

Pelfrêne, Aurélie; Gassama, Nathalie; Grimaud, Daniel

doi:10.1016/j.apgeochem.2008.11.006

Cited by 6 publications

(9 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). In the upper horizon, the thermodynamic calculations suggest the same, which is not in line with the monitoring results (no binary correlation was recorded in the upper horizon, in contrast to the concretion-rich horizon [Pelfrêne et al, 2009]). In this horizon, the soil matrix may have a greater impact.…”

Section: Coppersupporting

confidence: 47%

“…The chemical characteristics of soil solutions recorded in the three sites differ due to rate of weathering and water circulation [Pelfrêne et al, 2009]. The speciation distribution observed between the two horizons could also be linked to horizon matrix composition, and to the water residence time and chemical reactivity of the circulating solution.…”

Section: Modelling Of Trace Metal Speciationmentioning

confidence: 95%

“…In the concretion-rich horizon, Cu is specifically adsorbed on particles (links between Cu and Fe/Al/Mg [Pelfrêne et al, 2009]). Thermodynamic calculations predict that Cu is mainly associated with particles (mainly aluminium oxides) in both horizons ( fig.…”

Section: Coppermentioning

confidence: 99%

“…Therefore, only adsorption processes were considered in the present study. Based on (i) the individual mineralogical phases determined by X-ray diffraction (presence of quartz, feldspars, clay, and Fe-oxyhydroxide as ferrihydrite and goethite in both horizons [Cornu et al, 2005;Pelfrêne, 2008]), (ii) correlations between trace metals and the mobile particulate fraction [Pelfrêne et al, 2009], and (iii) the chemical composition of the samples (particles) (table III), iron oxide (FeOx), aluminium oxide (AlOx) and silica (SiOx) were the three main adsorbent materials considered. Recorded concentrations of particulate organic carbon (POC) were too low to be considered (table III).…”

Section: Mineralogical Phasesmentioning

confidence: 99%

See 3 more Smart Citations

Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches

Pelfrêne

Gassama

2012

Bulletin De La Société Géologique De France

View full text Add to dashboard Cite

International audienceIn this study, monitoring and thermodynamic approaches were combined in order to identify the dominant features, which control the speciation of Cd, Cu, Pb, and Zn in solutions from unpolluted planosolic soil (North Massif Central, France). Three sites were selected according to topography and monitored from January to May 2006 using piezometers. The sandy-loam to clay-loam organic-rich horizon (horizon A) and the gravely and concretion-rich horizon (horizon E) were chosen to assess the potential impact of type of horizon on the chemical speciation of metals in the soil solutions. Binding of metals to organic ligands was studied by differential pulse anodic stripping voltammetry (DPASV) in order to acquire experimental data which could be used for the validation of speciation models. These data, together with data from the literature on properties of natural particulate matter, were used to determine the speciation of Cd, Cu, Pb and Zn with a thermodynamic code (PHREEQC). The observed and predicted speciation were compared to estimate the contributions of natural dissolved organic matter and of particles to the binding of metal ions. There was a good match between observed and predicted results, validating the approach used. Results show that particles (mixed iron and aluminium oxides ± clays ± organic matter) play the main role in the speciation of the trace metals in soil waters rather than complexation with dissolved organic matter. Moreover, particles govern speciation to a greater extent in horizon E than in horizon A, which can be linked to hydrodynamics (reaction time between water and soil due to porosity) and chemical reactivity of the solution circulating

show abstract

Section: Coppersupporting

confidence: 47%

Section: Modelling Of Trace Metal Speciationmentioning

confidence: 95%

Section: Coppermentioning

confidence: 99%

Section: Mineralogical Phasesmentioning

confidence: 99%

See 2 more Smart Citations

Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches

Pelfrêne

Gassama

2012

Bulletin De La Société Géologique De France

View full text Add to dashboard Cite

show abstract

“…The bioavailability of trace elements in the soil is decisive for agriculture purposes. The speciation of trace metals ultimately determines their bioavailability and their mobility in the soil (Pelfrêne et al, 2009). A number of trace elements (Cu, Zn, Pb, Fe, Cr, Co, Cd and Ni) are contributed through the weathering of igneous and sedimentary rocks in the study area.…”

Section: Trace Elementsmentioning

confidence: 99%

Assessment of Geochemistry of Soils for Agriculture at Winder, Balochistan, Pakistan

Naseem¹,

Bashir²

2012

Water Quality, Soil and Managing Irrigation of Crops

View full text Add to dashboard Cite

Trace Element Solubility in a Multimetal-Contaminated Soil as Affected by Redox Conditions

Hindersmann

Mansfeldt

2014

Water Air Soil Pollut

View full text Add to dashboard Cite

Mobility of major-, minor- and trace elements in solutions of a planosolic soil: Distribution and controlling factors

Cited by 6 publications

References 45 publications

Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches

Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches

Assessment of Geochemistry of Soils for Agriculture at Winder, Balochistan, Pakistan

Trace Element Solubility in a Multimetal-Contaminated Soil as Affected by Redox Conditions

Contact Info

Product

Resources

About