Ultrafiltration of micellar solutions containing phenols
Micellar-enhanced ultrafiltration represents a potentially attractive tool for the removal of different contaminants from wastewaters. The ultrafiltration of micellar solutions containing phenol or 4-nitrophenol was studied. Sodium dodecyl sulfate (SDS), hexadecylrimethyl ammonium sulfate, alkyl polyglucoside Glucopon 215 SC UP, and oxyethylated methyl dodecanoates with the average degree of oxyethylation equal to 5 and 9 were used as surfactants and NaHCO{sub 3} as an electrolyte and alkalizing agent. Filtration and phenol rejection depends on the presence of NaHCO{sub 3} and the type of surfactant. NaHCO{sub 3} depresses to the filtration rate, especially in the case of SDS and hydrophobic oxyethylated methyl dodecanoate. The highest filtration rates are obtained for hexadecyltrimethyl ammonium bromide (CTAB) and alkyl polyglucoside micellar solutions. The best separations, both of phenol and 4-nitrophenol (almost 100% rejection), are obtained for CTAB micellar solutions at the pH range from 3 to 11. Nonionic surfactants are not effective enough for the separation of phenol and 4-nitrophenol. SDS solutions permit only the separation of phenol.
- Research Organization:
- Poznan Univ. of Tech. (PL)
- OSTI ID:
- 20013616
- Journal Information:
- Journal of Colloid and Interface Science, Journal Name: Journal of Colloid and Interface Science Journal Issue: 2 Vol. 218; ISSN 0021-9797; ISSN JCISA5
- Country of Publication:
- United States
- Language:
- English
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