The geochemical aspects of toxic waters retained in the Entremuros area (Spain)

Garralón, A.; Gómez, P.; Turrero, M. J.; Sánchez, Mónica Llano; Melón, A.

doi:10.1016/s0048-9697(99)00374-5

Cited by 19 publications

(14 citation statements)

References 3 publications

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“…In general, metal levels measured soon after the accident in the Guadiamar River and in other local waters (e.g. groundwater and the Agrio River; Garralón et al, 1999;Manzano et al, 1999;Prat et al, 1999) were comparable to the concentrations measured in the Tinto and Odiel rivers, both historically contaminated with mine wastes from the Pyrite Belt (ElbazPoulichet et al, 1999;Van Geen et al, 1999;Fig. 3).…”

Section: Effect Of Land Use On Levels Of Dissolved Constituents In Posupporting

confidence: 64%

“…The high levels of those constituents in the Partido Stream are consistent with the application of fertilizers (inorganic and organic) to agricultural lands in this watershed, which increases the concentrations of nutrients (e.g. N, P, K; Alva, 1992;Agrawal, 1999) and metals (such as Al, Cd, Cr, Ni, Zn; Garralón et al, 1999;Mortvedt, 1996;Debreczeni et al, 2000) in nearby waters and soils.…”

Section: Effect Of Land Use On Levels Of Dissolved Constituents In Posupporting

confidence: 55%

“…Enrichments of Co, Cu and Zn at the River site are likely to be directly attributable to the mine spill, as those three elements are among those previously reported to be enriched in the pyrite mud (Grimalt et al, 1999). Furthermore, these elements are preferentially mobilized during the oxidative dissolution of solid sulfides (Morse, 1994;Domènech et al, 2002), which were present in the Aználcollar sludge (Garralón et al, 1999). We cannot draw any major conclusions about the enrichments of B, Ba, Ga, Mn, Mo, Ni, Sr, and Ti in the flood plains of the Guadiamar River, because information regarding their concentrations before the Aznalcó llar accident is unavailable.…”

Section: Effect Of Land Use On Levels Of Dissolved Constituents In Pomentioning

confidence: 79%

“…Considerable efforts by the Spanish Government have been focused to control, minimize and remediate the contamination produced by the mine spill, and numerous analyses of environmental samples have been carried out in the affected region (Garralón et al, 1999;López-Pamo, 1999;Manzano et al, 1999). However, while the 200-million-Euro clean-up effort (Arenas et al, 2002) has considerably improved the environmental conditions in the affected area (CSIC, 2001), contamination from the spill is still pervasive in the upper 30-cm of soils (CSIC, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Metal contamination in interstitial waters of Doñana Park

Tovar-Sánchez

Huerta-Díaz²,

Negro

et al. 2006

Journal of Environmental Management

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The composition of interstitial waters in Spain's Doñana National Park was assessed 4 years after a major pyrite slurry spill occurred from the Aznalcollar Mine. Metal and nutrient concentrations in pore waters from two of the most important watercourses traversing Doñana Park were measured: Guadiamar River (affected by the accident) and Partido Stream (unimpacted by the accident). Concentrations of dissolved constituents in interstitial waters varied according to land use in the two watersheds and to the effects of the mine spill. Levels of dissolved Co, Cu, Mo, Ti, and Zn were higher in pore waters from the Guadiamar River than in the Partido Stream, suggesting that concentrations of trace elements are still influenced by the spill. In contrast, concentrations of dissolved nutrients (NH4+, NO2-, NO3-, PO4(-3)) and some trace metals used in fertilizers (e.g. Al and Cr) were higher in the Partido Stream. Levels of dissolved As, Cs, DOC, Ge, Hg, Rb and V in the interstitial waters were equal in both watercourses. Metal concentrations in interstitial waters of the Guadiamar River floodplain were between 0.3 (As) and 16,000 (Zn) times lower than those previously reported in the river and groundwater a few weeks after the mine spill. Although metals in pore water appear to have reached levels characteristic of the area before the accident, concentrations are 60-150 times higher than those in pore waters from other regions. Metal:Al ratios in Doñana's pore waters suggest a transport of contaminants from the Iberian Pyrite Belt into Doñana Park.

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Section: Effect Of Land Use On Levels Of Dissolved Constituents In Posupporting

confidence: 64%

Section: Effect Of Land Use On Levels Of Dissolved Constituents In Posupporting

confidence: 55%

Section: Effect Of Land Use On Levels Of Dissolved Constituents In Pomentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Metal contamination in interstitial waters of Doñana Park

Tovar-Sánchez

Huerta-Díaz²,

Negro

et al. 2006

Journal of Environmental Management

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“…According to Papassiopi et al, (2009), the Neutralization Potential to Acid Potential (NP/AP) ratio of the ABA test, varies from 0.0 to 1.6 for extraction waste, implying a minor to significant level of AMD risk, while for tailings the ratio varies between 0.0 and 0.2, implying a minor level of AMD risk only. The predominant importance of mine waste results from a) its larger volume (estimated 170000 m 3 , about 400000 ton, plus an extra 15700 m 3 of crushed ore near the mill, about 40000 ton), b) its permanent exposure to AMD which increases metal solubility by 1 to 3 orders of magnitude (Garralón et al, 1999). On the opposite, ore processing waste (tailings) represent a lower quantity (estimated 36500 m 3 , about 80000 ton), and they are less exposed to AMD.…”

Section: Inventory and Hierarchisation Of Contamination Sourcesmentioning

confidence: 99%

Environmental impacts of unmanaged solid waste at a former base metal mining and ore processing site (Kirki, Greece)

et al. 2010

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The Kirki project aimed to identify, among the mining waste abandoned at a mine and processing plant, the most critical potential pollution sources, the exposed milieus and the main pathways for contamination of a littoral area. This was accompanied by the definition of a monitoring network and remedial options. For this purpose, field analytical methods were extensively used to allow a more precise identification of the source, to draw relevant conceptual models and outline a monitoring network. Data interpretation was based on temporal series and on a geographical model. A classification method for mining waste was established, based on data on pollutant contents and emissions, and their long-term pollution potential. Mining waste present at the Kirki mine and plant sites comprises (A) extraction waste, mainly metal sulfide-rich rocks; (B) processing waste, mainly tailings, with iron and sulfides, sulfates or other species, plus residues of processing reagents; and (C) other waste, comprising leftover processing reagents and Pb—Zn concentrates. Critical toxic species include cadmium and cyanide. The stormy rainfall regime and hilly topography favour the flush release of large amounts of pollutants. The potential impacts and remedial options vary greatly. Type C waste may generate immediate and severe chemical hazards, and should be dealt with urgently by careful removal, as it is localised in a few spots. Type B waste has significant acid mine drainage potential and contains significant amounts of bioavailable heavy metals and metalloids, but they may also be released in solid form into the surface water through dam failure. The most urgent action is thus dams consolidation. Type A waste is by far the most bulky, and it cannot be economically removed. Unfortunately, it is also the most prone to acid mine drainage (seepage pH 1 to 2). This requires neutralisation to prevent acid water accelerating heavy metals and metalloids transfer. All waste management options require the implementation of a monitoring network for the design of a remediation plan, efficiency control, and later, community alert in case of accidental failure of mitigation/remediation measures. A network design strategy based on field measurements, laboratory validation and conceptual models is proposed.

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Heavy metal enrichment and potential ecological risks from different solid mine wastes at a mine site in Ghana

Akoto

Anning

2021

Environmental Advances

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The geochemical aspects of toxic waters retained in the Entremuros area (Spain)

Cited by 19 publications

References 3 publications

Metal contamination in interstitial waters of Doñana Park

Metal contamination in interstitial waters of Doñana Park

Environmental impacts of unmanaged solid waste at a former base metal mining and ore processing site (Kirki, Greece)

Heavy metal enrichment and potential ecological risks from different solid mine wastes at a mine site in Ghana

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