Competitive biosorption of heavy metals from aqueous solutions onto Streptomyces rimosus - Université de Rennes Access content directly
Journal Articles Korean Journal of Chemical Engineering Year : 2018

Competitive biosorption of heavy metals from aqueous solutions onto Streptomyces rimosus

Abstract

The aim of this study is the simultaneous biosorption of Cd+2 and Ni+2 on a dead biomass, Streptomyces rimosus pretreated with NaOH (0,1 M). Kinetic tests were carried out for the binary mixture (cadmium-nickel) during 6 hours contact time to ensure that balance was reached. The amounts adsorbed at equilibrium were 22.8 mg Ni2+/g and 9.86 mg Cd2+/g biomass, respectively. The biosorption depends mainly by some parameters, such as the pH, the initial concentration of metal and the initial concentration of biomass. The isotherm of adsorption according to two models, Langmuir and Freundlich, was carried out in our study. The results of the kinetics of adsorption show that the experimental values are well represented by the kinetic model of pseudo-second order. This enables us to determine the behavior of these adsorbents with respect to a real industrial effluent.
Fichier principal
Vignette du fichier
Yous - Competitive biosorption of heavy metals.pdf (915.32 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01807071 , version 1 (19-06-2018)

Identifiers

Cite

Radia Yous, Faroudja Mohellebi, Hakima Cherifi, Abdeltif Amrane. Competitive biosorption of heavy metals from aqueous solutions onto Streptomyces rimosus. Korean Journal of Chemical Engineering, 2018, 35 (4), pp.890-899. ⟨10.1007/s11814-018-0004-1⟩. ⟨hal-01807071⟩
116 View
198 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More