Submerged hollow fiber membranes : hydrodynamic and fouling study
Hollow fiber membranes have the advantage of the highest surface area to volume ratio of any type of membrane configuration. This thesis examines the interaction between the filtration performance and the bubble-induced hydrodynamics around submerged hollow fibers as well as physical characteristics...
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sg-ntu-dr.10356-393372023-03-03T19:20:18Z Submerged hollow fiber membranes : hydrodynamic and fouling study Yeo, Adrian Piah Song Law Wing-Keung, Adrian School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment Hollow fiber membranes have the advantage of the highest surface area to volume ratio of any type of membrane configuration. This thesis examines the interaction between the filtration performance and the bubble-induced hydrodynamics around submerged hollow fibers as well as physical characteristics such as fiber looseness and aerator configuration. Two non-invasive methods, Particle Image Velocimetry and Phase Contrast X-Ray Microimaging (XMI) were used to characterize shear stresses, fiber movement and fouling. It was found that it was possible to provide the same level of performance with significantly less air flow by using smaller bubbles as opposed to larger ones. The standard deviations of the shear stress, and the acceleration of the fiber showed the best correlation with the performance for the tight fibers and loose fibers respectively. XMI was shown to be very useful for observing bubble formation and fouling within the membrane. Doctor of Philosophy (CEE) 2010-05-21T05:18:06Z 2010-05-21T05:18:06Z 2006 2006 Thesis Yeo, A. P. S. (2006). Submerged hollow fiber membranes : hydrodynamic and fouling study. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/39337 10.32657/10356/39337 en 178 p. application/pdf |
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DRNTU::Engineering::Environmental engineering::Water treatment Yeo, Adrian Piah Song Submerged hollow fiber membranes : hydrodynamic and fouling study |
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Hollow fiber membranes have the advantage of the highest surface area to volume ratio of any type of membrane configuration. This thesis examines the interaction between the filtration performance and the bubble-induced hydrodynamics around submerged hollow fibers as well as physical characteristics such as fiber looseness and aerator configuration. Two non-invasive methods, Particle Image Velocimetry and Phase Contrast X-Ray Microimaging (XMI) were used to characterize shear stresses, fiber movement and fouling. It was found that it was possible to provide the same level of performance with significantly less air flow by using smaller bubbles as opposed to larger ones. The standard deviations of the shear stress, and the acceleration of the fiber showed the best correlation with the performance for the tight fibers and loose fibers respectively. XMI was shown to be very useful for observing bubble formation and fouling within the membrane. |
author2 |
Law Wing-Keung, Adrian |
author_facet |
Law Wing-Keung, Adrian Yeo, Adrian Piah Song |
format |
Theses and Dissertations |
author |
Yeo, Adrian Piah Song |
author_sort |
Yeo, Adrian Piah Song |
title |
Submerged hollow fiber membranes : hydrodynamic and fouling study |
title_short |
Submerged hollow fiber membranes : hydrodynamic and fouling study |
title_full |
Submerged hollow fiber membranes : hydrodynamic and fouling study |
title_fullStr |
Submerged hollow fiber membranes : hydrodynamic and fouling study |
title_full_unstemmed |
Submerged hollow fiber membranes : hydrodynamic and fouling study |
title_sort |
submerged hollow fiber membranes : hydrodynamic and fouling study |
publishDate |
2010 |
url |
https://hdl.handle.net/10356/39337 |
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1759855379208994816 |