HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER

Microbubbles with slow rising speedandhigher specific area are excellent in promoting greater oxygen dissolution rate in water. Such attributes are very important to tackle challenges on the low efficiency of gas/liquid mass transfer that occurs in aerobic wastewater treatment...

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Main Author: LIEW CHUNG , KELLY SHI
Format: Thesis
Language: English
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-utpedia.20426 /
Published: 2020
Subjects:
TP Chemical technology
Online Access: http://utpedia.utp.edu.my/20426/1/Kelly%20Liew%20Chung%20Shi_19000174.pdf
http://utpedia.utp.edu.my/20426/
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spelling utp-utpedia.204262021-08-18T22:59:53Z http://utpedia.utp.edu.my/20426/ HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER LIEW CHUNG , KELLY SHI TP Chemical technology Microbubbles with slow rising speedandhigher specific area are excellent in promoting greater oxygen dissolution rate in water. Such attributes are very important to tackle challenges on the low efficiency of gas/liquid mass transfer that occurs in aerobic wastewater treatment systems or in the aquaculture industries. Microbubble-type aerator had succeeded in enhancing the growth rate of fish and oyster, purifying the fishery waste water. Various approaches havebeen implemented to increase the aeration efficiency ofthe microbubble generator (MBG). However, current literature mostly cover fundamental mechanism of microbubble generation and characteristics instead of directly evaluating the oxygen transfer efficiency.In this study, the performanc eand energy efficiency of a hybrid venturi-orifice based MBG were investigated. The experiments were run under three conditions: various liquid velocity (QL)at fixed Qg; various Qg of at fixed QL; and free flowing air at variable QLs. Under free-flowing air, it is reaching a plateau KLavalue of 0.040min-1withaeration efficiency of0.429kgO2/kWh. The findings reveal that the hybrid venturi-orifice MBGis functioning as aerator for water. However, it can be further optimized for greater efficiency. 2020-09 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/20426/1/Kelly%20Liew%20Chung%20Shi_19000174.pdf LIEW CHUNG , KELLY SHI (2020) HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER. Masters thesis, Universiti Teknologi PETRONAS.
institution Universiti Teknologi Petronas
collection UTPedia
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
LIEW CHUNG , KELLY SHI
HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
description Microbubbles with slow rising speedandhigher specific area are excellent in promoting greater oxygen dissolution rate in water. Such attributes are very important to tackle challenges on the low efficiency of gas/liquid mass transfer that occurs in aerobic wastewater treatment systems or in the aquaculture industries. Microbubble-type aerator had succeeded in enhancing the growth rate of fish and oyster, purifying the fishery waste water. Various approaches havebeen implemented to increase the aeration efficiency ofthe microbubble generator (MBG). However, current literature mostly cover fundamental mechanism of microbubble generation and characteristics instead of directly evaluating the oxygen transfer efficiency.In this study, the performanc eand energy efficiency of a hybrid venturi-orifice based MBG were investigated. The experiments were run under three conditions: various liquid velocity (QL)at fixed Qg; various Qg of at fixed QL; and free flowing air at variable QLs. Under free-flowing air, it is reaching a plateau KLavalue of 0.040min-1withaeration efficiency of0.429kgO2/kWh. The findings reveal that the hybrid venturi-orifice MBGis functioning as aerator for water. However, it can be further optimized for greater efficiency.
format Thesis
author LIEW CHUNG , KELLY SHI
author_sort LIEW CHUNG , KELLY SHI
title HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
title_short HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
title_full HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
title_fullStr HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
title_full_unstemmed HYBRIDVENTURI-ORIFICE MICROBUBBLE GENERATOR FOR OXYGEN DISSOLUTION IN WATER
title_sort hybridventuri-orifice microbubble generator for oxygen dissolution in water
publishDate 2020
url http://utpedia.utp.edu.my/20426/1/Kelly%20Liew%20Chung%20Shi_19000174.pdf
http://utpedia.utp.edu.my/20426/
_version_ 1741195617459240960
score 11.62408

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