Ozone mass transfer in an ozone–water contacting process with Shirasu porous glass (SPG) membranes—A comparative study of hydrophilic and hydrophobic membranes

Development of bubble-less ozonation and membrane filtration process for the treatment of contaminated water

“…Inversely, the suitability of hydrophobic membranes, applied for the efficient contact between gaseous and aqueous phases has been confirmed by the respective mass transfer calculations [19,20]. Kukuzaki et al calculated that the mass transfer coefficients for hydrophbized SPG membranes were four order of magnitude higher, when compared to hydrophilic ones [21]. The hydrophobicity of ceramic membranes can be achieved through chemical modification, surface morphology modification, or by the combination of them.…”

An investigation into the efficacy of ozone for inactivation of microalgae cells in photobioreactors

“…This is because at lower flow rates, ozone concentration increases (Tizaoui & Zhang, 2010). Higher oxygen flow rates usually produce larger bubbles whereas lower flow rates produce smaller bubbles (Kukuzaki et al, 2010). At high flow rates, a small number of large bubbles are produced that rapidly rise to the surface and escape the media at an uncontrollable rate (Vijayan & Patil, 2010).…”

Degradation of tetracycline in aqueous media by ozonation in an internal loop-lift reactor

“…The increasing equilibrium ozone concentration could result in the increase of mass transfer driving force, which would lead to the increasing volumetric mass transfer coefficient of ozone from gas phase to liquid phase [38]. Thus, the degradation rate increased with the increasing gaseous ozone concentration.…”