Batch experiments have been carried out to study arsenic adsorption from aqueous solution by granular activated carbon (Aquacarb 207 EATM). Adsorption isotherms have been carried out between 10° and 55°C. Furthermore ionic strength and pH effects have been studied by adding NaCl and HNO3/NaOH to arsenic solution, respectively. Experimental results indicate that the adsorption capacity depends on the temperature and pH of solutions and a maximum is reached for 5<pH<8, while a rapid decrease is observed for external values. At last, an increase in sodium concentration results in a decreasing arsenic loading on carbon.
Removal of As(V) ions from aqueous solution by granular activated carbon / DI NATALE, Francesco; Erto, Alessandro; Lancia, Amedeo; Musmarra, D.. - STAMPA. - 1:(2006), pp. 551-554. (Intervento presentato al convegno First mediterranean Congress chemical Engineering for Environment tenutosi a Venice nel 4-6 october 2006).
Removal of As(V) ions from aqueous solution by granular activated carbon
DI NATALE, Francesco;ERTO, ALESSANDRO;LANCIA, AMEDEO;
2006
Abstract
Batch experiments have been carried out to study arsenic adsorption from aqueous solution by granular activated carbon (Aquacarb 207 EATM). Adsorption isotherms have been carried out between 10° and 55°C. Furthermore ionic strength and pH effects have been studied by adding NaCl and HNO3/NaOH to arsenic solution, respectively. Experimental results indicate that the adsorption capacity depends on the temperature and pH of solutions and a maximum is reached for 5I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
