Batch sorption of lead from aqueous solutions using Reed as an adsorbent: Equilibrium and kinetic studies

F., Boudrahem; Benissad, Aissani

Algerian Journal of Engineering Research
Volume 3, Numéro 1, Pages 15-22
2019-06-01

Batch Sorption Of Lead From Aqueous Solutions Using Reed As An Adsorbent: Equilibrium And Kinetic Studies

Authors : F. Boudrahem . Benissad Aissani .

Abstract

Kinetic and equilibrium sorption experiments concerning the removal of lead (II) ions from aqueous solutions by Reed were carried out on in order to assess its potential use as an efficient sorbent. The effects of contact time, initial lead (II) concentration, sorbent dose and ionic strength were investigated and discussed. Results of batch experiments showed that this sorbent exhibited high sorption capacities toward lead (II). Experimental data were analyzed using pseudo-first order and pseudo-second order kinetics. It was found that kinetics followed a pseudo-second order equation. The equilibrium results were modelled and evaluated using Langmuir and Freundlich model isotherms. The Langmuir model provided the best fit of equilibrium data of lead (II) ions with a maximum sorption capacity for lead (II) ions of 79 mg g-1 . This study revealed that Reed was an effective sorbent for the removal of lead (II) from aqueous solutions.