Acid mine drainage pollution in the Tinto and Odiel rivers (Iberian Pyrite Belt, SW Spain) and bioavailability of the transported metals to the Huelva Estuary

Nieto, José Miguel; Sarmiento, Aguasanta Miguel; Álvarez, Manuel Olías; Cánovas, Carlos Ruiz; Riba, Inmaculada; Kálmán, Judit; DelValls, T. Ángel

doi:10.1016/j.envint.2006.11.010

Cited by 274 publications

(118 citation statements)

References 45 publications

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“…This result is related to the formation of Fe(OH) 3 precipitates at the anodic surface of the CEM as a result of surpassing the i lim of the CEM during the course of the experiment conducted at 15 mA·cm -2 . It is known that the i lim value of an ion-exchange membrane is directly proportional to the concentration of counter-ions in the electrolyte [25].…”

Section: Transport Of Iron Through the Cemmentioning

confidence: 98%

“…Therefore, as the concentration in the depleting compartment decreases, the i lim of the CEM could diminish up to the point of reaching the same value as the applied current [24]. At this moment, the formation of Fe(OH) 3 precipitates at the anodic surface of a cationic membrane can be enhanced, thus acting as a blocking mechanism for the ionic transfer through the membrane [26,27]. The precipitates formed under the conditions of 15 mA·cm -2 were observed at the anodic side of the CEM at the end of the experiments.…”

Section: Transport Of Iron Through the Cemmentioning

confidence: 99%

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Sulfuric acid recovery from acid mine drainage by means of electrodialysis

et al. 2014

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However, the increase in the recovery of acid decreases as the current increases. This result is explained by the shift in the equilibrium at the membrane/solution interface as more SO 4 2-ions cross the anionic membrane and, by the enhancement of the 2 dissociation of water when the limiting current density is exceeded. The main limitation of the process is related to an abrupt increase in the cell voltage due to the formation of precipitates at the surface of the cation-exchange membrane.

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Section: Transport Of Iron Through the Cemmentioning

confidence: 98%

Section: Transport Of Iron Through the Cemmentioning

confidence: 99%

Sulfuric acid recovery from acid mine drainage by means of electrodialysis

et al. 2014

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“…The most significant off-site impact of acid mine drainage is the ecological degradation of the receiving streams, lakes and estuaries (Nieto et al, 2007;Shipp and Zierenberg, 2008;Bae et al, 2010). In areas where the mines are in close proximity to human habitats, the mine water or mine water-affected stream water is used for irrigation purposes.…”

Section: Acid Sulfate Footprints Associated With Metal Ore Miningmentioning

confidence: 99%

“…Exposure of sulfidic rocks on the land surface could be part of the natural geomorphic evolution, leading to acid generation and translocation to downstream areas (Grant and Newell, 1993;Neubert et al, 2011). However, human intervention such as mining and large construction activities can dramatically facilitate these processes (Jamieson et al, 2005;Johnson and Hallberg, 2005;Nieto et al, 2007).…”

Section: Inland Acid Sulfate Landscapesmentioning

confidence: 99%

Climate Change Adaptation in Acid Sulfate Landscapes

Lin¹

2012

American Journal of Environmental Sciences

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Oxidation of sulfide minerals produces sulfuric acid and consequently creates Acid Sulfate Landscapes (ASLs), which represent one of the most degraded types of land-surface environments. Although acid sulfate-producing weathering is a naturally occurring process, it is markedly facilitated by human intervention. Mining is by far the dominant anthropogenic cause for the creation of inland acid sulfate footprints while land reclamation in coastal lowlands is the driver for the formation of coastal ASLs. The projected climate change highlights the possibility of an increase in the frequency and severity of extreme weather events such as droughts and heavy rains, which is likely to accelerate the acid generation in some circumstances and increase the frequency and magnitude of acid discharge. Sea level rise as a result of global warming will cause additional problems with the coastal ASLs. This is a review article. The following aspects are covered: (a) the overriding biogeochemical processes leading to acid sulfateproducing weathering, (b) a brief introduction to the inland acid sulfate landscapes, (c) a brief introduction to the coastal acid sulfate landscapes, (d) the likely impacts of climate change on ASLs and (e) the possible measures to combat climate change-induced environmental degradation in the identified key acid sulfate footprints. The projected climate change is like to significantly affect the acid sulfate landscapes in different ways. Appropriate management strategies and cost-effective technologies need to be developed in order to minimize the climate change-induced ecological degradation.

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“…The Egyptian Mediterranean coast seems to be the most seriously polluted region as a result of accumulation of several metals which is contributed by both the point sources like industry and non-point sources like sewage, irrigation and urban runoff (El-Sorogy et al, 2016). (Osher et al, 2006;Nieto et al, 2007;Moreno et al, 2011;Popadic et al, 2013;Brady et al, 2014) 167.50 Guanabara Bay in Brazil (Alaoui et al, 2010) Zn Acid mine, mine, coke, ore, paints manufacturing, steel industry, industrial/domestic sewage, antifouling paints, oil spill (Osher et al, 2006;Nieto et al, 2007;Moreno et al, 2011;Popadic et al, 2013;Brady et al, 2014) 1005.00 Moulay Bousselham in Morocco (Borges et al, 2014) Pb Metal refineries/production, coal burning, metal refineries/ production, cement production, shipbuilding companies, natural weathering, oil spill (Moreno et al, 2011;Popadic et al, 2013;Chae et al, 2014) 384.68 Egyptian Mediterranean coast (El-Sorogy et al, 2016) Cd Acid mine, mine, coke, ore, lithogenic, phosphate fertilizers (Osher et al, 2006;Nieto et al, 2007;Dou et al, 2013;Brady et al, 2014) 28.88 Egyptian Mediterranean coast (El-Sorogy et al, 2016) Cr Paints manufacturing, oil combustion, geogenic source, shipping (combustion of oils), antifouling agents, oil spill (Osher et al, 2006;Moreno et al, 2011;Popadic et al, 2013;Brady et al, 2014;Keshavarzi et al, 2015) 347.00 Dhamara Estuary in India (Satapathy and Panda, 2015) Ni Oil combustion, geogenic source (Brady et al, 2014;Keshavarzi et al, 2015) 48...…”

Section: Global Distribution Of Metal Contamination In Coastal Sedimentsmentioning

confidence: 99%

Major threats of pollution and climate change to global coastal ecosystems and enhanced management for sustainability

Lü¹,

Yuan²

2018

Preprint

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Coastal zone is of great importance in the provision of various valuable ecosystem services. However, it is also sensitive and vulnerable to environmental changes due to high human populations and interactions between the land and ocean. Major threats of pollution from over enrichment of nutrients, increasing metals and persistent organic pollutants (POPs), and climate change have led to severe ecological degradation in the coastal zone, while few studies have focused on the combined impacts of pollution and climate change on the coastal ecosystems at the global level. A global overview of nutrients, metals, POPs, and major environmental changes due to climate change and their impacts on coastal ecosystems was carried out in this study. Coasts of the Eastern Atlantic and Western Pacific were hotspots of concentrations of several pollutants, and mostly affected by warming climate. These hotspots shared the same features of large populations, heavy industry and (semi-) closed sea. Estimation of coastal ocean capital, integrated management of land-ocean interaction in the coastal zone, enhancement of integrated global observation system, and coastal ecosystembased management can play effective roles in promoting sustainable management of coastal marine ecosystems. Enhanced management from the perspective of mitigating pollution and climate change was proposed.

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Acid mine drainage pollution in the Tinto and Odiel rivers (Iberian Pyrite Belt, SW Spain) and bioavailability of the transported metals to the Huelva Estuary

Cited by 274 publications

References 45 publications

Sulfuric acid recovery from acid mine drainage by means of electrodialysis

Sulfuric acid recovery from acid mine drainage by means of electrodialysis

Climate Change Adaptation in Acid Sulfate Landscapes

Major threats of pollution and climate change to global coastal ecosystems and enhanced management for sustainability

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