In this work, a model for the description of metallic ions adsorption onto activated carbon is presented. The model starts from an evaluation of ion speciation and considers the presence of both the acid-basic sites and nucleophilic/electrophilic active sites on the activated carbon. Moreover, the multicomponent Langmuir model is considered. The model has been used to correlate experimental data on the adsorption of Hg(II), Cr(VI), Cr(III), and As(V) on activated carbon. A good matching between experimental results and model predictions has been obtained for all the investigated conditions.
Adsorption of metallic ions from aqueous solutions onto activated carbons / DI NATALE, Francesco; Erto, Alessandro; Lancia, Amedeo; D., Musmarra. - STAMPA. - (2006), pp. 611-612. (Intervento presentato al convegno First mediterranean Congress chemical Engineering for Environment tenutosi a Venice nel 2-4 october 2006).
Adsorption of metallic ions from aqueous solutions onto activated carbons
DI NATALE, Francesco;ERTO, ALESSANDRO;LANCIA, AMEDEO;
2006
Abstract
In this work, a model for the description of metallic ions adsorption onto activated carbon is presented. The model starts from an evaluation of ion speciation and considers the presence of both the acid-basic sites and nucleophilic/electrophilic active sites on the activated carbon. Moreover, the multicomponent Langmuir model is considered. The model has been used to correlate experimental data on the adsorption of Hg(II), Cr(VI), Cr(III), and As(V) on activated carbon. A good matching between experimental results and model predictions has been obtained for all the investigated conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
