Assessment of the adaptive capacity of plant species in copper mine tailings in arid and semiarid environments

Lam, Elizabeth J.; Gálvez, María Elena; Cánovas, Manuel; Montofré, Ítalo L.; Keith, Brian

doi:10.1007/s11368-017-1835-9

Cited by 42 publications

(17 citation statements)

References 53 publications

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“…This was followed by clay content drying and sample sieving. Pretreatment for chemical analysis took about 3 days per sample [5,6]. So, preparing the sample for magnetic susceptibility is much simpler than preparing it for a chemical analysis.…”

Section: Ms Advantages Over Metal Concentrationmentioning

confidence: 99%

“…Soil characterization is a relevant process for subsequent environmental treatments such as decontamination, stabilization, or remediation [3,4]. The physical (pH, density) and the chemical properties of soils are a forcing factor for the growth and pollutant metabolism of plants during phytoremediation, particularly heavy metal content in the sediments at the (superficial) upper levels [5,6]. In this context, heavy metal concentration is commonly determined by a chemical analysis involving a high cost and a long period of analysis [7][8][9]; however, a low-cost and fast-application method is necessary for effective sediment characterization prior to remediation.…”

Section: Introductionmentioning

confidence: 99%

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A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

et al. 2020

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This paper intends to validate the application of magnetic techniques, particularly magnetic susceptibility, as sampling tools on a copper tailings terrace, by correlating them analytically. Magnetic susceptibility was measured in both the field and laboratory. Data obtained allowed for designing spatial magnetic susceptibility distribution maps, showing the horizontal variation of the tailings. In addition, boxplots were used to show the variation of magnetic susceptibility and the concentration of the elements analyzed at different depths of the copper tailings terrace. The degree of correlation between magnetic and chemical variables was defined with coefficient R2. The horizontal and vertical variations of magnetic susceptibility, the concentration of elements, and the significant correlations between them show a relationship between magnetic susceptibility and the chemical processes occurring in the tailing management facility, such as pyrite oxidation. Thus, the correlation functions obtained could be used as semiquantitative tools to characterize tailings or other mining residues.

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Section: Ms Advantages Over Metal Concentrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

et al. 2020

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“…The species Gazania rigens e Pelargonium hortorumthat, occur naturally in a copper mining tailings area in Chile, are an example of plants that showed potential in the phytoremediation of heavy metals [11]. However, the species B. trimera (carqueja) and B. dracunculifolia (Alecrim-of-the-field), although identified in some studies in copper and gold mining areas in southern Brazil [12,13,14] are still poorly studied for phytoremediation purposes.…”

Section: Introductionmentioning

confidence: 99%

Potential Analysis of Baccharis Dracunculifolia and Baccharis Trimera for Phytoremediation of Heavy Metals in Copper Mining Tailings Area, Southern Brazil

Afonso

Demarco

Pieniz

et al. 2021

Preprint

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The aim of this study was to investigate the phytoremediation potential promoted by Baccharis dracunculifolia DC. and Baccharis trimera (Less.) DC. incopper mining tailings area, Southern Brazil. The plants were selected considering their spontaneous growth on tailings. The phytoremediation indexes as a translocation factor (TF), bioconcentration factor (BCF), metal extraction ratio (MER) and plant effective number (PEN) were carried out. Both species showed higher concentration of heavy metals in the roots in relation to the shoots. B. trimera showed potential for phytoextraction of Zn, Cd, Cr, Pb and phytostabilization of Ba and Ni, whereas B. dracunculifolia showed potential for phytoextraction Pb and phytostabilization of Cu, Zn, and Ba. B. trimera showed higher potential in phytoremediation of the metals Cu > Zn > Cr > Ni and Cd than the B. dracunculifolia. B. trimera requires a smaller number of plants to remove 1 g of Cu, Zn, Cr, Pb, Niand Cd than the B. dracunculifolia. The values of PENs for Cu were close to those estimated for B. dracunculifolia, but the PENs (Cu) and PENt (Cu) in B. trimera are much lower, meaning that a smaller number of plants are required for decontamination. Both species showed potential for phytoremediation of metals and grew spontaneously in the tailing mining area.

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“…The authors concluded that fine biochar particles allowed S. viminalis growth on the contaminated soil allowing this species to be used for technosol phytostabilization. Lam et al (2017) assessed the adaptive capacity of species Gazania rigens and Pelargonium hortorum in copper mine tailings in the Antofagasta Region (Chile) one of the most arid in the world. The bioconcentration factor demonstrated that both species act as excluders of Fe, Mn, Pb, Al, and Zn.…”

Section: Introductionmentioning

confidence: 99%

Reclamation and management of polluted soils: options and case studies

Bech

2018

J Soils Sediments

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Assessment of the adaptive capacity of plant species in copper mine tailings in arid and semiarid environments

Cited by 42 publications

References 53 publications

A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

Potential Analysis of Baccharis Dracunculifolia and Baccharis Trimera for Phytoremediation of Heavy Metals in Copper Mining Tailings Area, Southern Brazil

Reclamation and management of polluted soils: options and case studies

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