Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/16157
Title: Development and application of PVDF Hollow fiber membranes for removal of volatile organic compounds by vacuum membrane distillation
Authors: WU BING
Keywords: Hollow Fibre Membranes, Polyvinylidene Fluoride, Volatile Organic Compounds Removal, Vacuum Membrane Distillation, Membrane Characterization, sorption
Issue Date: 1-Jun-2007
Source: WU BING (2007-06-01). Development and application of PVDF Hollow fiber membranes for removal of volatile organic compounds by vacuum membrane distillation. ScholarBank@NUS Repository.
Abstract: Asymmetric microporous polyvinylidene fluoride (PVDF) hollow fibre membranes with different pore sizes and porosities have been developed by phase inversion method from dope solutions consisting of dimethylacetamide as a solvent and a mixture of water and LiCl as a non-solvent additive. Five membrane modules were fabricated and applied in vacuum membrane distillation (VMD) process to remove and recover volatile organic compounds (VOCs) from its aqueous solutions. The effects of various operational parameters and membrane parameters on VMD process were investigated and discussed. High VOC removal efficiency up to 99% was achievable under optimal operational conditions in VMD process. A mathematical model has been developed for VMD and predicts the experimental results reasonably well over the ranges of operating conditions of interest. The influence of VOC sorption in the VMD process is also investigated by measuring the sorption of VOC vapours in a PVDF membrane using a mass-sorption system.
URI: http://scholarbank.nus.edu.sg/handle/10635/16157
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02_Acknowledgements.pdf11.02 kBAdobe PDF

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03_Table of contents.pdf29.59 kBAdobe PDF

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04_Summary.pdf24.27 kBAdobe PDF

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05_07_Nomeclature & list of Fig &table.pdf205.85 kBAdobe PDF

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08_Chapter 1.pdf57.35 kBAdobe PDF

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15_CHAPTER 8.pdf46.93 kBAdobe PDF

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16_REFERENCES.pdf183.03 kBAdobe PDF

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17_APPENDICES.pdf66.87 kBAdobe PDF

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