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- W1998401822 abstract "Micellar-enhanced ultrafiltration (MEUF) of zinc ions (Zn2+) from aqueous solutions using single anionic surfactant sodium dodecyl sulphate (SDS) at low critical micelle concentrations (cmc) (0.2×cmc – 3×cmc) was investigated. When the initial SDS concentration was below the cmc, unexpectedly high rejection (97.5%) was obtained due to concentration polarisation occurring near the membrane-solution interface. Based on this mechanism, the true rejection of the solute is no longer a function of the initial SDS concentration in the bulk solution but a function of the SDS concentration at the concentration polarisation layer. The removal of Zn2+ at low Zn2+ feed concentrations was very efficient. The characteristics of Zn2+ ion adsorption to surfactant micelle were also studied. The Langmuir model could be used to elucidate the Zn2+ adsorption isotherm to the SDS micelle. The study demonstrates the potential practicality of the MEUF technique for the removal of heavy metal ion pollutants such as Zn2+ at low surfactant concentrations" @default.
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- W1998401822 date "2009-12-08" @default.
- W1998401822 modified "2023-09-30" @default.
- W1998401822 title "Removal of zinc ions from aqueous solution using micellar- enhanced ultrafiltration at low surfactant concentrations" @default.
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- W1998401822 doi "https://doi.org/10.4314/wsa.v33i1.48787" @default.
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