INQUISUR   21779
INSTITUTO DE QUIMICA DEL SUR
Unidad Ejecutora - UE
artículos
Título:
Removal of heavy metals from wastewater using magnetic nanocomposites: Analysis of the experimental conditions
Autor/es:
MARÍA FERNANDA HORST; MARIANA ALVAREZ; VERÓNICA LASSALLE
Revista:
SEPARATION SCIENCE AND TECHNOLOGY
Editorial:
TAYLOR & FRANCIS INC
Referencias:
Lugar: Londres; Año: 2015
ISSN:
0149-6395
Resumen:
This contribution provides insight on the elimination of heavy metals from water resources using magnetic separation. Nanocomposites based on magnetite and chitosan were prepared. An exhaustive characterization of the magnetic adsorbents was developed. Adsorption assays were performed in batch using Cu, Zn, Cd and Cr as model heavy metals. The efficiency of magnetic adsorbents followed the order: Cu  Cd  Zn  Cr, with maximum values of 188, 159, 72 and 46 mg of Me/g of nanocomposite, respectively. Kinetics and mechanistic issues were studied. The magnetic materials were efficient for five to eight cycles using Cu(II),Cd(II) and Cr(VI) .