Adsorption of cationic and anionic surfactants onto organic polymer resin Lewatit VPOC 1064 MD PH |
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Authors: | Z B Gönder I Vergili Y Kaya H Barlas |
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Institution: | (1) Department of Environmental Engineering, Faculty of Engineering, Istanbul University, 34320 Avcilar, Istanbul, Turkey |
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Abstract: | The adsorption of a cationic (CTAB, cetyl trimethylammonium bromide) and an anionic surfactant (SLES, sodium dodecylethersulfate)
from aqueous solution onto organic polymer resin (Lewatit VPOC 1064 MD PH) was studied. A series of batch experiments were
performed to determine the sorption isotherms of surfactants to organic polymer resin. The experimental studies were analyzed
by Langmuir and Freundlich isotherms. Furthermore, the isotherm parameters, average percentage errors (ε) of model data, and
separation factor (R
L) were calculated. Other factors influencing the adsorption capacity (contact time, adsorbent amount, and initial surfactant
concentration) were also discussed. The experimental data fitted very well to the Langmuir equilibrium model in the studied
concentration range. The calculated R
L values showed that the adsorption of both surfactants were favorable. Among the surfactants, CTAB showed higher adsorption
capacity onto organic polymer resin compared to SLES (Q
0 = 250 and 34.36 mg g−1, respectively). |
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Keywords: | |
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