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A novel membrane-based bubble generator for oxygen dissolution in water

  • Wan Noor Athina Mohd Rasdi
  • , Muhammad Roil Bilad*
  • , Norazanita Shamsuddin
  • , Mohd Dzul Hakim Wirzal
  • , Nik Abdul Hadi Md Nordin
  • , Wiratni Budhijanto
  • , Totok Ruki Biyanto
  • , Asim Laeeq Khan
  • *Corresponding author for this work
  • Universiti Teknologi Petronas
  • Universiti Brunei Darussalam
  • Gadjah Mada University
  • COMSATS University Islamabad

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

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 languageEnglish
Article number108938
JournalChemical Engineering and Processing - Process Intensification
Volume175
DOIs
Publication statusPublished - May 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Dissolved oxygen
  • Microbubbles
  • Oxygen dissolution
  • Specific energy consumption

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