Mineralogical controls on mobility of rare earth elements in acid mine drainage environments

Autor: Tseren-Ochir Soyol-Erdene, Teresa Maria Fernandes Valente, Jose Antonio Grande, M. L. de la Torre
Přispěvatelé: Universidade do Minho
Rok vydání: 2018
Předmět:
Environmental Engineering
Water-mineral interaction
Ciências Naturais::Ciências da Terra e do Ambiente
Health
Toxicology and Mutagenesis
Rare earth
Epsomite
chemistry.chemical_element
010501 environmental sciences
engineering.material
010502 geochemistry & geophysics
01 natural sciences
Mining
chemistry.chemical_compound
Rivers
Al-Mg sulfates
Environmental Chemistry
Dissolution
Rare earth elements
Ciências da Terra e do Ambiente [Ciências Naturais]
Água potável e saneamento
0105 earth and related environmental sciences
Iberian Pyrite Belt
Science & Technology
Chemistry
Magnesium
Acid mine drainage (AMD)
Public Health
Environmental and Occupational Health
General Medicine
General Chemistry
Acid mine drainage
Pollution
NASC normalized pattern
13. Climate action
Environmental chemistry
engineering
Alunogen
Metals
Rare Earth
Oil shale
Acids
Water Pollutants
Chemical
Environmental Monitoring
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
ISSN: 1879-1298
Popis: Supplementary data related to this article can be found at https://doi.org/10.1016/j.chemosphere.2018.04.095.
Rare earth elements (REE) were analyzed in river waters, acid mine waters, and extracts of secondary precipitates collected in the Iberian Pyrite Belt. The obtained concentrations of the REE in river water and mine waters (acid mine drainage - AMD) were in the range of 0.57 μg/L (Lu) and 2579 μg/L (Ce), which is higher than previously reported in surface waters from the Iberian Pyrite Belt, but are comparable with previous findings from AMD worldwide. Total REE concentrations in river waters were ranged between 297 μg/L (Cobica River) and 7032 μg/L (Trimpancho River) with an average of 2468 μg/L. NASC (North American Shale Composite) normalized REE patterns for river and acid mine waters show clear convex curvatures in middle-REE (MREE) with respect to light- and heavy-REE. During the dissolution experiments of AMD-precipitates, heavy-REE and middle-REE generate the most enriched patterns in the solution. A small number of precipitates did not display MREE enrichment (an index Gdn/Lun
Financial support was provided by the Andalusian Autonomous Government Excellence Project, code P06-RNM-02167. This work was also co-funded by the European Union through the European Regional Development Fund, based on COMPETE 2020, project ICT (UID/GEO/04683/2013), reference POCI-01-0145-FEDER-007690, national funds provided by FCT. Post-Doctoral Fellowship through Erasmus Mundus SAT program and Young Scientist Research Grant (SEAS-2015−14) of the National University of Mongolia were supported for T.-O. Soyol-Erdene. The authors also appreciate the valuable comments and suggestions made by the anonymous reviewers.
Databáze: OpenAIRE
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