<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">In this research, the batch removal of Pb2+ ions from wastewater and aqueous solution with the use o two different modified algae <italic>Gracilaria corticata</italic> (red algae) and <italic>Sargassum glaucescens</italic> (brown algae) was examined. The experiment was performed in a batch system and the effect of the pH solution; initial concentration and contact time on biosorption by both biomasses were investigated and compared. When we used <italic>S. glaucescens</italic> as a biosorbent, the optima conditions of pH, Pb2+ concentration and equilibrium time were at 5, 200 mg/L and 70 min, in the range of 95.6% removal. When <italic>G. corticata</italic> was used for this process, pH 3, 15 mg/L pb2+ concentration and 50 min contact time, resulted in the maximum removal (86.4%). The equilibrium adsorption data are fitted to the Frundlich and Langmuir isotherm model, by <italic>S. glaucescens</italic> and <italic>G. corticata</italic>, respectively. The pb2+ uptake by both biosorbent was best described by the second-order rate model.</abstract>

In this research, the batch removal of Pb2+ ions from wastewater and aqueous solution with the use o two different modified algae Gracilaria corticata (red algae) and Sargassum glaucescens (brown algae) was examined. The experiment was performed in a batch system and the effect of the pH solution; initial concentration and contact time on biosorption by both biomasses were investigated and compared. When we used S. glaucescens as a biosorbent, the optima conditions of pH, Pb2+ concentration and equilibrium time were at 5, 200 mg/L and 70 min, in the range of 95.6% removal. When G. corticata was used for this process, pH 3, 15 mg/L pb2+ concentration and 50 min contact time, resulted in the maximum removal (86.4%). The equilibrium adsorption data are fitted to the Frundlich and Langmuir isotherm model, by S. glaucescens and G. corticata, respectively. The pb2+ uptake by both biosorbent was best described by the second-order rate model.

Biosorption of Pb (II) from aqueous solutions by modified of two kinds of marine algae, <italic>Sargassum glaucescens</italic> and <italic>Gracilaria corticata</italic>

Department of Chemical Engineering, Islamic Azad University, North Tehran Branch, Tehran, Iran

Polish Journal of Chemical Technology

Biosorption of Pb (II) from aqueous solutions by modified of two kinds of marine algae,  and 

In this research, the batch removal of Pb2+ ions from wastewater and aqueous solution with the use o two different modified algae Gracilaria corticata (red...

Biosorption of Pb (II) from aqueous solutions by modified of two kinds of marine algae, Sargassum glaucescens and Gracilaria corticata

Publié en ligne: 02 juil. 2012

Pages: 22 - 28

DOI: https://doi.org/10.2478/v10026-012-0066-5

Mots clés
Biosorption. Lead (II), Removal, Gracilaria corticata, Sargassum glaucescens, Isotherm mode

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