Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting
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The Institution of Engineers, Malaysia (IEM)
2017
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my.unimap-508072017-12-19T12:40:15Z Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting Eliseus, Arthur Muhammad Roil, Bilad, Dr Air bubbles Membrane fouling Membrane Photobioreactor Shear-rate Tilted module Link to publisher’s homepage at http://www.myiem.org Harvesting microalgae using membrane is challenging due to the nature of microalgae having very high membrane fouling potential. Numerous techniques have been proposed for membrane fouling control, including optimizing operational cycles, imposing shear-rates via air bubbles and dosing chemicals for feed conditioning and membrane cleaning. As an established method, the eficacy of air bubbles for membrane fouling control can be improved by maximizing the impact of shear-rates in scouring foulant from the membrane surface. In this study, we investigate the effect of tilting angles, switching periods as well as aeration rates in a lab-scale submerged iltration system by iltering microalgae solution. Results showed that higher tilting angles improve the cleaning eficiency by offering higher lux of up to 2.7 times at an angle of 20◦ as opposed to the vertical one. It was also found that operating a one-sided panel (without switching) was about 20% better than a two-sided panel, in which the latter involved switching mode to offer aeration of both panel sides. This technique is effective in controlling fouling and can lead to energy saving for full-scale modules. 2017-12-19T12:40:15Z 2017-12-19T12:40:15Z 2017-06 Article The Journal of the Institution of Engineers, Malaysia, Vol. 78(1), 2017, pages 18-21 0126-513x http://dspace.unimap.edu.my:80/xmlui/handle/123456789/50807 http://www.myiem.org en The Institution of Engineers, Malaysia (IEM) |
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Malaysia |
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Universiti Malaysia Perlis |
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| language |
English |
| topic |
Air bubbles Membrane fouling Membrane Photobioreactor Shear-rate Tilted module |
| spellingShingle |
Air bubbles Membrane fouling Membrane Photobioreactor Shear-rate Tilted module Eliseus, Arthur Muhammad Roil, Bilad, Dr Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| description |
Link to publisher’s homepage at http://www.myiem.org |
| format |
Article |
| author |
Eliseus, Arthur Muhammad Roil, Bilad, Dr |
| author_facet |
Eliseus, Arthur Muhammad Roil, Bilad, Dr |
| author_sort |
Eliseus, Arthur |
| title |
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| title_short |
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| title_full |
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| title_fullStr |
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| title_full_unstemmed |
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| title_sort |
maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting |
| publisher |
The Institution of Engineers, Malaysia (IEM) |
| publishDate |
2017 |
| url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/50807 |
| _version_ |
1643802990937636864 |