English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/16254
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Heavy metal bioavailability in a soil affected by mineral sulphides contamination following the mine spillage at Aznalcóllar (Spain)

AutorClemente Carrillo, Rafael ; Walker, David J.; Roig, Asunción ; Bernal Calderón, M. Pilar
Palabras claveBioremediation
Heavy metals
Metal availability
Organic matter
Pyrite
Sulphide oxidation
Fecha de publicaciónjun-2003
EditorSpringer
CitaciónBiodegradation 14(3): 199-205 (2003)
ResumenA field experiment, lasting 14 months, was carried out in order to assess the effect of organic amendment and lime addition on the bioavailability of heavy metals in contaminated soils. The experiment took place in a soil affected by acid, highly toxic pyritic waste from the Aznalcóllar mine (Seville, Spain) in April 1998. The following treatments were applied (3 plots per treatment): cow manure, a mature compost, lime (to plots having pH < 4), and control without amendment. During the study two crops of Brassica juncea were grown, with two additions of each organic amendment. Throughout the study, the evolution of soil pH, total and available (DTPA-extractable) heavy metals content (Zn, Cu, Mn, Fe, Pb and Cd), electrical conductivity (EC), soluble sulphates and plant growth and heavy metal uptake were followed. The study indicates that: (1) soil acidification, due to the oxidation of metallic sulphides in the soil, increased heavy metal bioavailability; (2) liming succeeded in controlling the soil acidification; and (3) the organic materials generally promoted fixation of heavy metals in non-available soil fractions, with Cu bioavailability being particularly affected by the organic treatments.
Descripción8 pages, 4 figures, 2 tables.
Versión del editorhttp://dx.doi.org/10.1023/A:1024288505979
URIhttp://hdl.handle.net/10261/16254
DOI10.1023/A:1024288505979
ISSN1572-9729 (Online)
0923-9820 (Print)
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.