Adsorption capacity of methylene blue, an organic pollutant, by montmorillonite clay
Type
ArticleAuthors
Feddal, I.Ramdani, Amina
Taleb, Safia
Gaigneaux, E. M.
Batis, Narjès Harrouch
Ghaffour, NorEddine

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionEnvironmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Date
2013-11-25Online Publication Date
2013-11-25Print Publication Date
2014-04-16Permanent link to this record
http://hdl.handle.net/10754/563091
Metadata
Show full item recordAbstract
The isotherms and kinetics of the adsorption of a cationic dye in aqueous solution, methylene blue, on a local Algerian montmorillonite clay mineral (raw, sodium and thermally activated at 300 and 500°C) were determined experimentally. Various parameters influencing the adsorption were optimized, mainly solid-liquid contact time, mass of adsorbent, initial concentration of dye, pH of the solution and temperature. Results showed that the adsorption kinetics were fast: 30 min for the raw clay mineral, and 20 min for sodium clay mineral (SC) and thermally activated at 300°C, whereas with the clay mineral calcined at 500°C, the equilibrium was reached after 150 min only. The maximum adsorption capacity was reached at pH 6.6. Results deducted from the adsorption isotherms also showed that the retention follows the Langmuir model. In addition, it was found that the kinetics were in the order of 2 (K = 2.457 × 106 g/mg.h) for sodium clay and were limited by an intra-particle diffusion. SC was found to be a better adsorbent to remove methylene blue from industrial wastewater. © 2013 Balaban Desalination Publications. All rights reserved.Citation
Feddal, I., Ramdani, A., Taleb, S., Gaigneaux, E. M., Batis, N., & Ghaffour, N. (2013). Adsorption capacity of methylene blue, an organic pollutant, by montmorillonite clay. Desalination and Water Treatment, 52(13-15), 2654–2661. doi:10.1080/19443994.2013.865566Publisher
Informa UK LimitedJournal
Desalination and Water Treatmentae974a485f413a2113503eed53cd6c53
10.1080/19443994.2013.865566