Publication
Acid mine drainage from the Panasqueira mine and its influence on Zêzere River (Central Portugal)
| dc.contributor.author | Candeias, C. | |
| dc.contributor.author | Freire Ávila, P. | |
| dc.contributor.author | Silva, E. F | |
| dc.contributor.author | Ferreira, A. | |
| dc.contributor.author | Salgueiro, A. R. | |
| dc.contributor.author | Teixeira, João Paulo | |
| dc.date.accessioned | 2015-02-03T13:49:46Z | |
| dc.date.available | 2015-02-03T13:49:46Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | The Panasqueira hydrothermal mineralization, located in central Portugal, is the biggest Sn–W deposit of the Western Europe. The main evidences of the mining exploitation and ore treatment operations are testified with huge tailings, mainly, in the Rio and Barroca Grande areas. The mining and benefi- ciation processes, at the site, produces metal rich mine wastes. Oxidation of sulfides tailings and flow from open impoundments are responsible for the mobilization and migration of metals from the mine wastes into the environment. Acid mine drainage (AMD) discharged from Rio tailing has a pH around 3 and high metal concentrations. In Zêzere river, Fe and As are the most rapidly depleted downstream from AMD once As adsorbs, coprecipitate and form compounds with iron oxyhydroxides. The Zêzere river waters are oversaturated with respect to kaolinite and goethite and ferrihydrite can precipitate on stream with a near-neutral pH. At sites having low pH the dissolved Fe species in the water, mainly, occur as sulfate complexes due to a high SO4 concentration. Melanterite (Fe2+(SO4)7(H2O)) and minor amounts of rozenite (Fe2+(SO4)4(H2O)) and szomolnokite (Fe2+(SO4)(H2O)) were observed on Rio tailing basement. | por |
| dc.description.sponsorship | This research was funded by the European Commission through the e-Ecorisk Project (EVG1-2002-250068) ‘‘A regional enterprise network decision-support system for environmental risk and disaster management of large-scale industrial spills’’. | por |
| dc.identifier.citation | J Afr Earth Sci. 2014; 99:705-12. Doi: 10.1016/j.jafrearsci.2013.10.006. Epub 2013 Oct 25 | por |
| dc.identifier.doi | 10.1016/j.jafrearsci.2013.10.006 | |
| dc.identifier.issn | 1464-343X | |
| dc.identifier.uri | http://hdl.handle.net/10400.18/2755 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Elsevier | por |
| dc.relation | EVG1-2002-250068- e-Ecorisk Project | por |
| dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S1464343X13001921 | por |
| dc.subject | Mining Areas | por |
| dc.subject | Acid Mine Drainage | por |
| dc.subject | Geochemical Modeling | por |
| dc.subject | Hydrogeochemistry | por |
| dc.subject | Mineralogy | por |
| dc.subject | Panasqueira Mine | por |
| dc.subject | Ar e Saúde Ocupacional | por |
| dc.subject | Genotoxicidade Ambiental | por |
| dc.title | Acid mine drainage from the Panasqueira mine and its influence on Zêzere River (Central Portugal) | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 712 | por |
| oaire.citation.startPage | 705 | por |
| oaire.citation.title | Journal of African Earth Sciences | por |
| oaire.citation.volume | 99 | por |
| rcaap.rights | embargoedAccess | por |
| rcaap.type | article | por |
Files
Original bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- 2014 journal of african earth sciences.pdf
- Size:
- 930.31 KB
- Format:
- Adobe Portable Document Format
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.71 KB
- Format:
- Item-specific license agreed upon to submission
- Description: