Biosorption of Fe (III) on raw brown algae in batch system

El Mail RACHAD, Benaisa Souad


The ability of Sargassum vulgare biomass, for biosorption of iron (III) from an aqueous solution was studied in a batch system. The algae biomass was characterized using Fourier Transform Infrared spectroscopy (FTIR).The effect of relevant parameters on iron removal such as, contact time, biosorbent amount was evaluated. The equilibrium was established in 2 hours. The biosorption kinetic data was successfully described with pseudo-first order and pseudo-second order models. The results showed that the kinetic biosorption process of Fe (III) followed pseudo first order with (R2 = 0.99 and k = 0.056). The biosorption equilibrium was studied using Langmuir and Freundlich models. Biosorption of Iron (III) onto Sargassum vulgare biomass followed the Langmuir isotherm (R2 = 0.99) with maximum biosorption capacity (qe= 63.67 mg/g).


Biosorption, Iron, algae, Kinetic, Isotherm

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