Polysulfone membranes II. Performance comparison of polysulfone-poly-(N-vinyl-pyrrolidone) membranes

Tam, C.M.; Tweddle, T. A.; Kutowy, O.; Hazlett, John D.

doi:10.1016/0011-9164(93)80142-a

Cited by 25 publications

(13 citation statements)

References 12 publications

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“…Therefore, polymers are the most important materials economically available to prepare membranes that can be prepared over a wide range of film-forming options and modified to achieve tailored properties. Polyethersulfone is a superior polymer available for membrane preparation; being more flexible, it has excellent mechanical, chemical, electrical and thermal properties (Tam et al, 1993(Tam et al, , 1996. Blending with other polymers or compounds (Chen et al, 1996) also provides improvement in desired properties such as solvent resistance, improved processability, hydrophilicity, separation selectivity and high productivity.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance Studies on Polyethersulfone Ultrafiltration Membranes Modified With Gelatin for Treatment of Tannery and Distillery Wastewater

Velu

Loganathan

Arthanareeswaran

2015

Braz. J. Chem. Eng.

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-In this study polyethersulfone ultrafiltration membrane were prepared with the modifier gelatin at 0, 5, 10, 15 and 20 wt % using DMF as solvent by phase inversion process. Morphologies and characteristics of the membranes were investigated through the methods of SEM, XRD, contact angle measurements. The performance of the modified membrane for the treatment of leather and distillery wastewater through a deadend ultrafiltration process was studied. Morphological investigation showed that the 10% gelatin content in 90% PES results in a two layer structure with a porous top and homogeneous sub-layer with uniform number of pores on the surface. The pure water flux of the modified membrane increases with gelatin concentration, which results in better permeation for both leather and distillery wastewater. In addition to 80-90% reduction in BOD and COD, all modified PES UF membranes showed moderate removal of total suspended and dissolved solids, chlorides, sulphate, oil and grease, potassium, sodium and ammonical nitrogen, apart from color removal.

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Section: Introductionmentioning

confidence: 99%

Preparation and Performance Studies on Polyethersulfone Ultrafiltration Membranes Modified With Gelatin for Treatment of Tannery and Distillery Wastewater

Velu

Loganathan

Arthanareeswaran

2015

Braz. J. Chem. Eng.

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“…They listed their results for different casting solution compositions consisting of PSF : NMP : formic acid. The zero shear viscosity of 20% PSF : 80% NMP was found to be 1.287 Pa s. Zero shear Newtonian viscosities for various PSF : NMP casting solutions were measured and reported by Tam et al4 Some of their measurements are listed in Table I.…”

Section: Methodsmentioning

confidence: 97%

Effect of solvent evaporation conditions on gas separation performance for asymmetric polysulfone membranes

Yamasaki

Tyagi

Fouda

et al. 1999

J. Appl. Polym. Sci.

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Asymmetric polysulfone membranes were prepared by the phase inversion technique under different solvent evaporation conditions prior to the gelation step. The membranes were cast from the two component system of polymer and N,N‐dimethylacetamide in which the polymer concentration was changed from 25.0 to 30.0%. The solvent evaporation temperature was changed from 70 to 120°C, and the evaporation time was 0–15 min. Ethanol, water, or 2‐propanol was used as the gelation media. The membranes were characterized by the measurement of oxygen/nitrogen permeation with the lamination technique and by observation with scanning electron microscopy. With an increase in the solvent evaporation time, the oxygen permeance decreased and its selectivity over nitrogen increased; although the permeance was in the range of 1–2 GPU, the oxygen selectivity over nitrogen exceeded 8. A correlation between the permeation performance and the operational parameters involved in the solvent evaporation process was obtained. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 1367–1374, 1999

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“…As we all know that the polymer concentration in the casting solution has great effects on the porosity of the asymmetric support membrane [25]. In general, the higher the polymer concentration is, the lower the porosity would be.…”

Section: The Change Of Psf Concentration In the Casting Solutionmentioning

confidence: 99%

The influence of support layer structure on mass transfer in pervaporation of composite PDMS–PSF membranes

Tan¹,

Li²,

Zhang³

et al. 2010

Chemical Engineering Journal

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Polysulfone membranes II. Performance comparison of polysulfone-poly-(N-vinyl-pyrrolidone) membranes

Cited by 25 publications

References 12 publications

Preparation and Performance Studies on Polyethersulfone Ultrafiltration Membranes Modified With Gelatin for Treatment of Tannery and Distillery Wastewater

Preparation and Performance Studies on Polyethersulfone Ultrafiltration Membranes Modified With Gelatin for Treatment of Tannery and Distillery Wastewater

Effect of solvent evaporation conditions on gas separation performance for asymmetric polysulfone membranes

The influence of support layer structure on mass transfer in pervaporation of composite PDMS–PSF membranes

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