%T A novel membrane-based bubble generator for oxygen dissolution in water
%V 175
%I Elsevier B.V.
%A W.N.A. Mohd Rasdi
%A M.R. Bilad
%A N. Shamsuddin
%A M.D.H. Wirzal
%A N.A.H.M. Nordin
%A W. Budhijanto
%A T.R. Biyanto
%A A.L. Khan
%K Dissolution; Energy efficiency; Energy utilization; Liquids; Potential energy, Bubble generators; Bubble-in-liquid; Dissolution energy; Leading indicators; Membrane-based; Microbubbles; Negative pressures; Oxygen dissolution; Porous film; Specific energy consumption, Dissolved oxygen
%X 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. © 2022
%D 2022
%R 10.1016/j.cep.2022.108938
%O cited By 5
%J Chemical Engineering and Processing - Process Intensification
%L scholars16792