Preliminary absorption tests were conducted to evaluate the efficiency in As(V) removal of selected waste materials (Fe 10-60%) of different mineralogical compositions. Arsenic removal kinetic was not so fast compared to Granular Ferrous Oxides (GFH, common As commercial removal adsorption media, amorphous and Fe>70%), but As removal reached in some case 30-50% removal. The prevalence of goethite, identified among the several FeOOH minerals by XRD spectra, seems to enhance As adsorption capacity. Further studies are needed to elucidate As and P adsorption driving process in order to give more hints on the characteristics of waste material to select by support of remote sensing images and ground-based mineralogical and spectroscopic evidences.
Integrated multidisciplinary approach for reusing mining waste as resource
Girolamo Belardi;Daniela Guglietta;Francesca Trapasso;Daniele Passeri;Stefano Ubaldini;Rosamaria Salvatori;Barbara Casentini;
2018
Abstract
Preliminary absorption tests were conducted to evaluate the efficiency in As(V) removal of selected waste materials (Fe 10-60%) of different mineralogical compositions. Arsenic removal kinetic was not so fast compared to Granular Ferrous Oxides (GFH, common As commercial removal adsorption media, amorphous and Fe>70%), but As removal reached in some case 30-50% removal. The prevalence of goethite, identified among the several FeOOH minerals by XRD spectra, seems to enhance As adsorption capacity. Further studies are needed to elucidate As and P adsorption driving process in order to give more hints on the characteristics of waste material to select by support of remote sensing images and ground-based mineralogical and spectroscopic evidences.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
