Abstract
Dissolved oxygen is one of the leading indicators of aquatic quality. This study explored a membrane-based bubble generator (MBG) for oxygen dissolution in water. It is achieved by creating negative pressures to suck the air through a thin, porous film and forming bubbles in liquid water. Both airflow and liquid flow rates played essential roles in forming the bubbles. The highest oxygen dissolution energy efficiency of 1.48 kgO2/kWh was achieved under free-flowing air at corresponding air and liquid velocities of 4.87 L/min and 2.46 m/s, respectively. The obtained oxygen dissolution energy efficiencies were comparable with established commercial oxygenators. The results revealed a promising application of porous membranes in MBG as a potential energy-efficient oxygen dissolution technology.
| Original language | English |
|---|---|
| Article number | 108938 |
| Journal | Chemical Engineering and Processing - Process Intensification |
| Volume | 175 |
| DOIs | |
| Publication status | Published - May 2022 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
Keywords
- Dissolved oxygen
- Microbubbles
- Oxygen dissolution
- Specific energy consumption
Fingerprint
Dive into the research topics of 'A novel membrane-based bubble generator for oxygen dissolution in water'. Together they form a unique fingerprint.Press/Media
Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver