Hydrochemical characteristics and seasonal influence on the pollution by acid mine drainage in the Odiel river Basin (SW Spain)

Sarmiento, Aguasanta Miguel; Nieto, José Miguel; Álvarez, Manuel Olías; Cánovas, Carlos Ruiz

doi:10.1016/j.apgeochem.2008.12.025

Cited by 164 publications

(108 citation statements)

References 33 publications

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“…Maps produced from historic Hymap data of the area studied [4][5][6] suggest that the mineralogical pattern within the mine waste and sediments is dependent on fluctuations in humidity and evaporation intensity, and could be used as a record of seasonal and annual climate changes. Later field and laboratory spectral investigations, which monitored mineralogical changes in mine waste from the end of the wet season through the dry season [7,8], were in agreement with these observations [6].…”

Section: Introductionsupporting

confidence: 63%

“…The geochemistry of the river is closely monitored by local hydrogeologists [8], and fluvial sediments from the Odiel River, which gather spills from numerous mine sites in its drainage basin, have drawn special attention to conduct a hyperspectral monitoring [15]. In addition, several study sites were selected from maps compiled with historical Hymap data [4][5][6], to sample and develop a laboratory spectral study which would enable monitoring of mineralogical changes over the summer [6].…”

Section: Hyperspectral Studies Of Mine Wastementioning

confidence: 99%

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Monitoring the Extent of Contamination from Acid Mine Drainage in the Iberian Pyrite Belt (SW Spain) Using Hyperspectral Imagery

et al. 2011

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Monitoring mine waste from sulfide deposits by hyperspectral remote sensing can be used to predict surface water quality by quantitatively estimating acid drainage and metal contamination on a yearly basis. In addition, analysis of the mineralogy of surface crusts rich in soluble salts can provide a record of annual humidity and temperature. In fact, temporal monitoring of salt efflorescence from mine wastes at a mine site in the Iberian Pyrite Belt (Huelva, Spain) has been achieved using hyperspectral airborne Hymap data. Furthermore, climate variability estimates are possible based on oxidation stages derived from well-known sequences of minerals, by tracing sulfide oxidation intensity using archive spectral libraries. Thus, airborne and spaceborne hyperspectral remote sensing data can be used to provide a short-term record of climate change, and represent a useful set of tools for assessing environmental geoindicators in semi-arid areas. Spectral and geomorphological indicators can be monitored on a regular basis through image processing, supported by field and laboratory spectral data. In fact, hyperspectral image analysis is one of the methods selected by the Joint Research Centre of the European OPEN ACCESS

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Section: Introductionsupporting

confidence: 63%

Section: Hyperspectral Studies Of Mine Wastementioning

confidence: 99%

Monitoring the Extent of Contamination from Acid Mine Drainage in the Iberian Pyrite Belt (SW Spain) Using Hyperspectral Imagery

et al. 2011

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“…In contrast to the other sites, Šobov is an open system directly exposed to surface precipitation and air, which are the main conditions required for the biochemical activity of mineral decomposing microorganisms (at this site, Acidithiobacillus; [29]). This supports the findings that local AMD chemistry usually depends on the character of the mine waste deposit [53,54].…”

Section: Water Chemistrysupporting

confidence: 78%

Benthic Communities of Low-Order Streams Affected by Acid Mine Drainages: A Case Study from Central Europe

Svitok

Novikmec

Bitušík

et al. 2014

Water

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Abstract:Only little attention has been paid to the impact of acid mine drainages (AMD) on aquatic ecosystems in Central Europe. In this study, we investigate the physico-chemical properties of low-order streams and the response of benthic invertebrates to AMD pollution in the Banská Štiavnica mining region (Slovakia). The studied streams showed typical signs of mine drainage pollution: higher conductivity, elevated iron, aluminum, zinc and copper loads and accumulations of ferric precipitates. Electric conductivity correlated strongly with most of the investigated elements (weighted mean absolute correlation = 0.95) and, therefore, can be recommended as a good proxy indicator for rapid AMD pollution assessments. The diversity and composition of invertebrate assemblages was related to water chemistry. Taxa richness decreased significantly along an AMD-intensity gradient. While moderately affected sites supported relatively rich assemblages, the harshest environmental conditions (pH < 2.5) were typical for the presence of a limited number of very tolerant taxa, such as Oligochaeta and some Diptera 1313(Limnophyes, Forcipomyiinae). The trophic guild structure correlated significantly with AMD chemistry, whereby predators completely disappeared under the most severe AMD conditions. We also provide a brief review of the AMD literature and outline the needs for future detailed studies involving functional descriptors of the impact of AMD on aquatic ecosystems.

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“…The Aha Reservoir and Xiaoche River were identified as lightly AMD-contaminated areas. In previous research, environmental gradients have been observed in other AMD-contaminated watersheds, such as the Amous River region in southern France (16), the Odiel River basin in southwest Spain (17), the abandoned Coval da Mó mine in Portugal (18), and the Molonglo River in Australia (19). Similar to these AMD-contaminated environments, the Aha watershed exhibited a transition in physicochemical water quality from the upstream Dapo Creek [low in pH but dominated with Fe(II)] to the downstream rivers and reservoir (moderate-pH and low-Fe environments).…”

Section: Spatial Variations In Physiochemical Datamentioning

confidence: 99%

Diversity of the Sediment Microbial Community in the Aha Watershed (Southwest China) in Response to Acid Mine Drainage Pollution Gradients

Sun

Xiao

Sun

et al. 2015

Appl Environ Microbiol

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e Located in southwest China, the Aha watershed is continually contaminated by acid mine drainage (AMD) produced from upstream abandoned coal mines. The watershed is fed by creeks with elevated concentrations of aqueous Fe (total Fe > 1 g/liter) and SO 4 2؊ (>6 g/liter). AMD contamination gradually decreases throughout downstream rivers and reservoirs, creating an AMD pollution gradient which has led to a suite of biogeochemical processes along the watershed. In this study, sediment samples were collected along the AMD pollution sites for geochemical and microbial community analyses. High-throughput sequencing found various bacteria associated with microbial Fe and S cycling within the watershed and AMD-impacted creek. A large proportion of Fe-and S-metabolizing bacteria were detected in this watershed. The dominant Fe-and S-metabolizing bacteria were identified as microorganisms belonging to the genera Metallibacterium, Aciditerrimonas, Halomonas, Shewanella, Ferrovum, Alicyclobacillus, and Syntrophobacter. Among them, Halomonas, Aciditerrimonas, Metallibacterium, and Shewanella have previously only rarely been detected in AMD-contaminated environments. In addition, the microbial community structures changed along the watershed with different magnitudes of AMD pollution. Moreover, the canonical correspondence analysis suggested that temperature, pH, total Fe, sulfate, and redox potentials (E h ) were significant factors that structured the microbial community compositions along the Aha watershed.A cid mine drainage (AMD) is one of the most environmentally threatening by-products of the mining industry. The chemical and/or microbial weathering of metal sulfide-rich rocks such as pyrite (FeS 2 ), sphalerite (ZnS), and galena (PbS) produces sulfuric acid, which leads to the formation of AMD. AMD typically has low pH and elevated concentrations of sulfate and metals, which severely impair water and soil quality (1, 2).Despite the extreme toxicity and acidity, the AMD-associated environments harbor numerous acidophilic microorganisms (3, 4). Recently, molecular techniques have been extensively applied to study AMD microbiology, and a variety of acidophilic and metal-tolerant microorganisms have been identified (5). Prokaryotic microorganisms that are metabolically active in acidic niche boundaries (pH Ͻ 3) were found to be phylogenetically diversified, affiliated within the phyla Proteobacteria, Firmicutes, Acitinobacteria, Nitrospirae, and Acidobacteria (5). Many of these acidophiles are capable of Fe and S cycling (e.g., oxidation and reduction of these elements in appropriate geochemical and microbial environments) and thus play an important role both in the formation of acid mine waters and in natural attenuation of AMD. However, our understanding of the roles of geochemical factors in shaping microbial community structure and the potential of microorganisms in natural attenuation of AMD and AMD-impacted watersheds is still limited.The AMD of the Aha watershed in southwest China provides an ideal opportunity to ...

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Hydrochemical characteristics and seasonal influence on the pollution by acid mine drainage in the Odiel river Basin (SW Spain)

Cited by 164 publications

References 33 publications

Monitoring the Extent of Contamination from Acid Mine Drainage in the Iberian Pyrite Belt (SW Spain) Using Hyperspectral Imagery

Monitoring the Extent of Contamination from Acid Mine Drainage in the Iberian Pyrite Belt (SW Spain) Using Hyperspectral Imagery

Benthic Communities of Low-Order Streams Affected by Acid Mine Drainages: A Case Study from Central Europe

Diversity of the Sediment Microbial Community in the Aha Watershed (Southwest China) in Response to Acid Mine Drainage Pollution Gradients

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