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

• Autorzy: Akbar Esmaeili , Mona Kalantari , Betsabe Saremnia
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Biosorption. Lead (II); Removal; Gracilaria corticata; Sargassum glaucescens; Isotherm mode

• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2012
• Tom: 14
• Numer: 2
• Strony: 22-28

Daty

wydano

2012-01-01

online

2012-07-02

Twórcy

autor

Akbar Esmaeili

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

autor

Mona Kalantari

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

autor

Betsabe Saremnia

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

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Identyfikatory

DOI

10.2478/v10026-012-0066-5