Use of sequential extraction procedure for assessing the environmental impact at regional scale of the São Domingos Mine (Iberian Pyrite Belt)

Pérez‐López, Rafael; Álvarez-Valero, Antonio M.; Nieto, José Miguel; Sáez, Reinaldo; Matos, João Xavier

doi:10.1016/j.apgeochem.2008.08.005

Cited by 116 publications

(63 citation statements)

References 33 publications

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“…Therefore, in the case of a dam fai lure, the potential irupact of the Monte Romero sludge would have a similar eff ect on water and soil quality due to its metal load, although a signifi cantly smaller area would be aff ected. Finally, the pollutant potential of the sulfi de tailings depends on their capacity to release toxic elements (which can be evaluated by means of a sequential extraction procedure, e.g., A lvarez- Valero et al 2009;Perez-L6pez et aL 2008), and the chemical species involved in the mobilization of metals. Therefore, future work in these mine ponds must be focused on the factors controlling the bio-availability of heavy metals.…”

Section: Environmental Concernsmentioning

confidence: 99%

A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)

Crespo

Martín-Velázquez

Gómez-Ortíz

et al. 2010

Water Air Soil Pollut

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Section: Environmental Concernsmentioning

confidence: 99%

A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)

Crespo

Martín-Velázquez

Gómez-Ortíz

et al. 2010

Water Air Soil Pollut

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“…The abandoned pyrite mine of São Domingos, Portugal, is still an acid mine drainage generator and a source for trace elements pollution, and hence a threat to the ecologic equilibrium. The environmental risk concerning mining wastes it is wellknown (Pratas et al, 2005;Pérez-López et al, 2008;Alvarenga et al, 2012); however, although a wide area of land became contaminated with trace elements and only supports sparse vegetation, no efforts were made for an environmental recovery of the mining site since the ceasing of the mine activity in 1966. Information about plant communities that are growing on metal-contaminated soils is essential to determine their application for mine stabilisation/remediation and biogeochemical exploration.…”

Section: Introductionmentioning

confidence: 99%

“…Most studies concerning the rehabilitation of polluted soils in situ have focused on the effects of different treatment on bioavailability of trace elements and plant growth (Alvarenga et al, 2008;Pérez-López et al, 2008), but interventions at one level inherently affect the restoration attributes at other levels (Kardold and Wardle, 2010). During decades, links between above-ground changes and belowground activities carried out by soil microorganisms were often ignored, although they are determinant of ecosystem resilience and functional efficiency, and they can assist restoration ecology (Kardold and Wardle, 2010).…”

Section: Introductionmentioning

confidence: 99%

Microbial community structure and biomass of a mine soil with different organic and inorganic treatments and native plants

Basanta

Varennes²,

Díaz-Raviña

2017

J. Soil Sci. Plant Nutr.

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Heavy metals far in excess of trace amounts that are required for healthy plant growth, cause harmful effects on soil microorganisms; however, studies concerning the characterization of microbial communities in mine soils are scarce. The present study is the first attempt to characterize, by means of the analysis of phospholipid fatty acid (PLFA) patterns, soil microbial community composition from a contaminated mine soil (Pb, As) subjected to different remediation technologies. A pot experiment was performed with a soil from the São Domingos mine (South of Portugal) with or without native herbaceous plants combined with the following soil treatments: control; inorganic fertilizer (NPK); inorganic fertilizer plus polyacrylate polymer; inorganic fertilizer plus organic amendment (compost); inorganic fertilizer plus both amendments (compost, polymer). The measurements of PLFA patterns were made on soil samples collected 5 months after the application of remediation treatments.The total microbial biomass and the biomass of specific groups increased notably after soil treatments, particularly those including organic amendments, and were significantly higher in presence of native plants than in the corresponding bare soils. The data also indicated that a plant cover rather than organic and inorganic treatments played the dominant role in determining the composition of the microbial community. An influence of different soil treatments on microbial composition was also observed; the effect of organic amendment being more pronounced than that of the remaining treatments. The results clearly showed the efficacy of a vegetation cover (native plants) combined with the use of organic amendment in the reclamation of this degraded mine soil.

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“…Sequential extractions procedures are the most used for the determination of different forms of metals in wastes, such as mining wastes (Clevenger, 1990;Marguí et al, 2004;Pérez-López et al, 2008), coal ash (Landsberger et al, 1995), municipal solid wastes (Xiaoli et al, 2007) and untreated industrial wastewater sludge (Kazi et al, 2005). Only two works have been found for wastes from the tannery industry.…”

Section: Introductionmentioning

confidence: 99%

“…The potential hazard of the wastes deposited on landfill based on the total metal content is not enough to evaluate the environmental impact because the chemical state in which the metals are bound to wastes must be known to evaluate their mobility and bioavailability (Pérez-López et al, 2008). Trace metals in wastes may exist in different chemical forms or ways of binding.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the chromium bioavailability in tanned leather shavings using the SM&T sequential extractions scheme

Silva¹,

Pontes²,

Carneiro³

et al. 2011

Chemical Speciation & Bioavailability

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Tanned leather shavings from Brazilian tanneries were analysed in order to assess the chromium extractability and bioavailability, and consequently its potential release into other environmental compartments when the shavings are deposited on landfill sites. The conventional SM&T (Standard, Measurement and Testing Programme) sequential extractions scheme was applied. Also, Cr(VI) and Cr(III) concentrations in the oxidizable fraction were determined. The results indicated high total chromium concentrations (1.04, 1.46 and 2.74%) in the samples A, B and C, respectively. A significant quantity of chromium (about 6 -11% of total chromium) was easily released in slightly acidic conditions (step 1). This fraction is the most labile, and therefore the most dangerous and bioavailable for the surrounding environment. Less chromium (1 -3% of total chromium) was released in reducing conditions (step 2), whereas about 0.5 -3% of total chromium was strongly associated to the leather shaving structure (residual fraction -step 4), and therefore, its release under environmental conditions would be unlikely. Most of chromium (about 83 -92% of the total chromium) was bound to the organic matter, as expected, since it was released in oxidizing condition (step 3). Part of chromium released in this fraction was also converted into Cr(VI), which is more labile and toxic than Cr(III). Considering the chromium concentrations, the sequentially extracted fractions may be ordered as follows: oxidizable4exchangeable4reducible4residual.

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Use of sequential extraction procedure for assessing the environmental impact at regional scale of the São Domingos Mine (Iberian Pyrite Belt)

Cited by 116 publications

References 33 publications

A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)

A Geochemical and Geophysical Characterization of Sulfide Mine Ponds at the Iberian Pyrite Belt (Spain)

Microbial community structure and biomass of a mine soil with different organic and inorganic treatments and native plants

Evaluation of the chromium bioavailability in tanned leather shavings using the SM&T sequential extractions scheme

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