Geochemical and hydrologic controls of copper-rich surface waters in the Yerba Loca-Mapocho system
Contrôle géochimique et hydrologique des eaux de surface contaminées en cuivre dans le système Yerba Loca-Mapocho
Résumé
Andean watersheds in Northern and Central Chile are naturally enriched with metals, many of them associated to sulfide mineralizations related to copper mining districts. The natural and anthropogenic influx of toxic metals into drinking water sources pose a sustainability challenge for cities that need to provide safe water with the smallest footprint. This work presents our study of the transformations of copper in the Yerba Loca-Mapocho system. Our sampling campaign started from the headwaters at La Paloma Glacier and continues to the inlet of the San Enrique drinking water treatment plant, a system feeding municipalities in the Eastern area of Santiago, Chile. Depending on the season, total copper concentrations go as high as 22 mg/L for the upper sections, which become diluted to
Domaines
Sciences de l'environnement
Origine : Fichiers produits par l'(les) auteur(s)