Immobilization of Brown Seaweeds Sargassum vulgare for Fe3+ Removal in Batch and Fixed-Bed Column

The immobilized algae Sargassum vulgare was used as biosorbent for Fe 3+ removal through a batch and continuous system in order to study the biosorption capacity and to establish a new method of the valorization of this waste. The kinetic data could be described by the pseudo first-order and pseudo...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2019, Vol.230 (1), p.1-13, Article 19
Main Authors: Benaisa, Souad, Arhoun, Brahim, Villen-Guzman, Maria, El Mail, Rachad, Rodriguez-Maroto, Jose Miguel
Format: Article
Language:English
Subjects:
Algae
Analytical methods
Atmospheric Protection/Air Quality Control/Air Pollution
Binding sites
Biosorption
Climate Change/Climate Change Impacts
Correlation coefficient
Correlation coefficients
Earth and Environmental Science
Electron microscopy
Environment
Environmental monitoring
Flow rates
Flow velocity
Fourier transforms
Hydrogeology
Immobilization
Infrared spectroscopy
Iron
Metals
Photomicrographs
Removal
Sargassum vulgare
Scanning electron microscopy
Seaweeds
Soil Science & Conservation
Water Quality/Water Pollution
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Summary:The immobilized algae Sargassum vulgare was used as biosorbent for Fe 3+ removal through a batch and continuous system in order to study the biosorption capacity and to establish a new method of the valorization of this waste. The kinetic data could be described by the pseudo first-order and pseudo second-order kinetic models. The batch equilibrium was fitted by the Langmuir model with a value of correlation coefficient ( R 2  = 0.98) higher than that of the Freundlich ( R 2  = 0.89). The process was exothermic and spontaneous and the biomass was successfully desorbed using 0.1 M HCl. Furthermore, the Thomas model, Bohart-Adams model, and Yoon-Nelson model were successfully applied to evaluate the dynamic behavior of Fe 3+ biosorption in a fixed-bed column. The lower flow rate of 1.04 ml/min showed the greater performance of the process. Fourier transform infrared spectroscopy revealed the presence of several active binding sites, and scanning electron microscopy micrograph confirmed the metal adsorption on the surface. The results reveal that the immobilized algae have a potential removal for Fe 3+ in a batch and continuous system.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-018-4069-6