Dynamic Adsorption of a Cationic Dye onto Wool Fibers as Column-Filling Media: Response Surface Optimization and Fixed-Bed Adsorption Modeling.
Autor: | Condurache BC; 'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania., Cojocaru C; 'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania., Bargan A; 'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania., Samoila P; 'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania., Harabagiu V; 'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania. |
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Jazyk: | angličtina |
Zdroj: | Materials (Basel, Switzerland) [Materials (Basel)] 2024 Feb 06; Vol. 17 (4). Date of Electronic Publication: 2024 Feb 06. |
DOI: | 10.3390/ma17040790 |
Abstrakt: | This study reports a simple and low-cost method for water purification using recyclable natural fibers (coarse wool fibers) as column-filling media for adsorption in the dynamic mode. As an instance of a dissolved organic pollutant, a cationic dye (basic blue 9, BB9) was assayed. According to the Langmuir isotherm (recorded at 300 K), the calculated maximum adsorption capacity of the fibrous material was found to be 24.86 mg/g for the retention of BB9. Response surface methodology (RSM) was employed for the design of experiments and the model-based optimization of the adsorption process performed in the dynamic regime (fixed-bed column). The optimal conditions provided by RSM indicated an adsorbent column height of H = 13.5 cm and a feed flow rate of F Competing Interests: The authors declare no conflicts of interest. |
Databáze: | MEDLINE |
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