“Mass transfer properties in a bubble column associated with micro-bubble dispersions.” Chemical Engineering Science, Vol. Muroyama, K., Imai, K., Oka, Y., and Hayashi, J. “Generation mechanism of micro-bubbles in a pressurized dissolution method.” Experimental Thermal and Fluid Science, Vol. Maeda, Y., Hosokawa, S., Baba, Y., Tomiyama, A., and Ito, Y. “Evaluation of characteristics for microbubble generation according to venturi nozzle specification.” Journal of the Korea Academia-Industrial, Vol. “Micro bubble inducing characteristics depending on various nozzle and pressure in dissolved air flotation process.” Journal of Civil Engineering, Vol. “Microbubble generation for environmental and industrial separations.” Separation and Purification Technology, Vol. “Gas holdup and volumetric mass transfer coefficient in bubble columns.” Industrial and Engineering Chemistry Process design and development, Vol. “Principle and applications off microbubble and nanobubble technology for water treatment.” Chemosphere, Vol. Hence, the composition of additional equipment for improving efficiency of pressurized dissolution type micro-bubble generator was recommended using breaker disk and swirling chamber B type.Īgalwal, A., Ng, W. The contribution ratio for volumetric mass transfer coefficient was 345.59%. Also, in aspect of effect on volumetric mass transfer coefficient, swirling chamber B was shown up the best efficiency than other cases. As a results of several experiments, breaker disk was shown up the best efficiency than other cases in aspect of effect on bubble size, which contribution ratio for D 50 and Sauter mean diameter are 27.84%, 45.16% respectively. And the results of experiments was summarized quantitatively. And, to show the effect of element measured bubble size distribution, Sauter mean diameter and volumetric mass transfer coefficient as performance indicators of pressurized-dissolution type micro-bubble generator. This study was performed to investigate the effect on element such as swirling chamber and breaker disk in pressurized-dissolution type micro-bubble generator.
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