he present study focused on the use of Carissa carandas leaves and Syzygium aromaticum (clove) powder as biosorbents for the removal of copper(II), nickel(II), zinc(II) and lead(II) from aqueous solutions. Results were investigated in batch mode and the observations were correlated with the pH variation, agitation time, dose of the adsorbent and initial metal ion concentration in the solution. Biosorbent Carissa carandas leaf powder showed higher sorption efficiency than that of biosorbent Syzygium aromaticum powder under identical experimental conditions. Langmuir isotherm models observed best equilibrium data in all four metals and both biosorbents and pseudo second order kinetics model perfectly matched in both biosorbents in all four metal ions.
Adsorptive behaviour, isothermal and kinetic modeling studies in removal of copper, nickel, zinc and lead from aqueous solutions using Carissa carandas and Syzygium aromaticum: A comparative analysis
Lofrano G
2016-01-01
Abstract
he present study focused on the use of Carissa carandas leaves and Syzygium aromaticum (clove) powder as biosorbents for the removal of copper(II), nickel(II), zinc(II) and lead(II) from aqueous solutions. Results were investigated in batch mode and the observations were correlated with the pH variation, agitation time, dose of the adsorbent and initial metal ion concentration in the solution. Biosorbent Carissa carandas leaf powder showed higher sorption efficiency than that of biosorbent Syzygium aromaticum powder under identical experimental conditions. Langmuir isotherm models observed best equilibrium data in all four metals and both biosorbents and pseudo second order kinetics model perfectly matched in both biosorbents in all four metal ions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
