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Title: Removal of cetyltrimethylammonium bromide and sodium dodecylether sulfate by granular activated carbon
Authors: Kaya, Y
Gönder, Z B
Vergili, I
Barlas, H
Keywords: Adsorption isotherms
Anionic surfactant
Cationic surfactant
Granular activated carbon
Issue Date: Mar-2008
Publisher: CSIR
Abstract: Adsorption isotherms of sodium dodecylether sulfate (SLES) and cetyltrimethylammonium bromide (CTAB) onto granular activated carbon (GAC) at 25°C (aqueous solution) were experimentally determined by batch tests with respect to contact time, adsorbent amount and initial surfactant concentration. Close agreement of experimental data with Langmuir equilibrium model was observed. In Langmuir model, adsorptive capacity of CTAB was higher than that of SLES (Q° = 70.423 and 52.08 mgg⁻¹, respectively). L type isotherms were obtained that showed no strong competition among solvent molecules and surfactant molecules for the adsorption sites.
Description: 249-253
ISSN: 0022-4456
Appears in Collections:JSIR Vol.67(03) [March 2008]

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