Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/34093

TitleEnrichment of trace elements in the clay size fraction of mining soils
Author(s)Gomes, Patrícia
Valente, Teresa Maria Fernandes
Braga, M. A. Sequeira
Grande, J. A.
De la Torre, M. L.
KeywordsMining soils
Contamination
Clay size fraction
Accumulation factor
Trace elements
Portugal
Issue date2016
PublisherSpringer
JournalEnvironmental Science and Pollution Research
CitationGomes, P., Valente, T., Amalia Sequeira Braga, M., Grande, J. A., & de la Torre, M. L. (2016). Enrichment of trace elements in the clay size fraction of mining soils. Environmental Science and Pollution Research, 23(7), 6039-6045. doi: 10.1007/s11356-015-4236-x
Abstract(s)Reactive waste dumps with sulfide minerals pro- 14 mote acid mine drainage (AMD), which results in water and 15 soil contamination by metals and metalloids. In these systems, 16 contamination is regulated by many factors, such as mineral- 17 ogical composition of soil and the presence of sorption sites 18 on specific mineral phases. So, the present study dedicates 19 itself to understanding the distribution of trace elements in 20 different size fractions (<2-mm and <2-μm fractions) of min- 21 ing soils and to evaluate the relationship between chemical 22 and mineralogical composition. Cerdeirinha and Penedono, 23 located in Portugal, were the waste dumps under study. The 24 results revealed that the two waste dumps have high degree of 25 contamination by metals and arsenic and that these elements 26 are concentrated in the clay size fraction. Hence, the higher 27 degree of contamination by toxic elements, especially arsenic 28 in Penedono as well as the role of clay minerals, jarosite, and 29 goethite in retaining trace elements has management implica- 30 tions. Such information must be carefully thought in the reha- 31 bilitation projects to be planned for both waste dumps.
TypeArticle
URIhttp://hdl.handle.net/1822/34093
DOI10.1007/s11356-015-4236-x
ISSN0944-1344
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CIG-R - Artigos (Papers)

Files in This Item:
File Description SizeFormat 
11356_2015_4236_Author.pdf562,73 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID