RT Journal Article
T1 Determinación de la carga contaminante disuelta transportada por el río Meca (Huelva, España)
T1 Determination of dissolved contaminant load transported by Meca river (Huelva, Spain)
A1 Galván González, Laura
A1 Olías Álvarez, Manuel
A1 Nieto Liñán, José Miguel
A1 Cerón García, Juan Carlos
A1 Miguel Sarmiento, Aguasanta
AB The drainage network of the Odiel river (SW Spain) is intensively contaminated by acid mine drainage(AMD). The Odiel river basin drains the materials of the Iberian Pyrite Belt (IPB), a large metalogenicprovince hosting numerous, large scale massive sulphide deposits. The aim of this study is to quantify thecontaminated load transported by the fluvial network of the Meca river, tributary of the Odiel. The Mecariver is strongly affected by acid lixiviates coming from Tharsis mine, located in the northern area of thewatershed. It is regulated by a reservoir which water has a pH close to 4 and high contents of Al and othertoxic metals. By means of several samplings the quality of water has been obtained. Due to the shortage ofstream flow gauges, a hydrological model is used to obtain flow rate data. The dissolved transported loadis calculated from the correlation between contaminant concentration and flow rate. The results showthat the Meca river transports enormous quantities of dissolved contaminants: 418 ton/year of Al, 121ton/year of Zn and minor quantities of other metals. The comparison between average element averageconcentrations calculated from these results and the reservoir water quality shows a good agreement
YR 2007
FD 2007
LK http://hdl.handle.net/10272/8351
UL http://hdl.handle.net/10272/8351
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 29 may 2026