JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Evaluation of characteristics for microbubble generation according to venturi nozzle specification
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Evaluation of characteristics for microbubble generation according to venturi nozzle specification
Lim, Ji-Young; Kim, Hyun-Sik; Park, Soo-Young; Kim, Jin-Han;
  PDF(new window)
 Abstract
This research was performed to review operating parameters, optimum condition and check characteristic of microbubble generation for using bubble size distribution according to venturi specification. Optimum operating condition have airflow rate 0.3 LPM, 3 bar(pressure tank) and connecting nozzle directly(without valve), it is advantageous to generate microbubble. In case of characteristic of microbubble generation according to venturi specification, effect that nozzle specification affects bubble size distribution is low impact. But considering performance aspects, when using nozzle that throat diameter 3-4 mm, are (D3L15, D4L15), fraction of bubble less than are 0.326, 0.345. And it is superior to others. Besides, and fraction of bubble less than of throat length 20 mm are , 0.447, respectively And nozzle that throat length 20 mm is relatively tendency to generate microbubble stably.
 Keywords
Bubble size distribution;Microbubble;Pressurized type microbubble generator;Venturi nozzle;
 Language
Korean
 Cited by
1.
A Study on the Recycling of Foodwaste Leachate as External Carbon Sources Using Microbubble, Journal of The Korean Society of Civil Engineers, 2016, 36, 4, 651  crossref(new windwow)
2.
Effects on swirling chamber and breaker disk in pressurized-dissolution type micro-bubble generator, KSCE Journal of Civil Engineering, 2016  crossref(new windwow)
 References
1.
R. Parmar, S. K. Majumder, "Microbubble generation and microbubble-aided transport process intensification-A state-of-the-art report", Chemical Engineering and Processing, 64, pp. 79-97, 2013. DOI: http://dx.doi.org/10.1016/j.cep.2012.12.002 crossref(new window)

2.
American Water Works Association, "Water Quality and Treatment 5th, Edition", McGraw-Hill Professional, 1999.

3.
S. Liu, Q. Wang, H. Ma, P. Huang, J. Li, T. Kikuchi, "Effect of micro-bubbles on coagulation flotation precess of dyeing wasterwater", Separation and Purification Technology, 71, pp. 337-346, 2010. DOI: http://dx.doi.org/10.1016/j.seppur.2009.12.021 crossref(new window)

4.
M. RB, R. MA, "Characterization of micro-bubble size distribution and flow configuration in DAF contact zone by a non-intrusive image analysis system and tracer tests", Water science & technology, 61(1), pp. 253-262, 2010. DOI: http://dx.doi.org/10.2166/wst.2010.784 crossref(new window)

5.
S. C. Park, H. Y. Oh, M. K. Chung, S. L. Song, Y. H. Ahn, "An Effect of the Micro Bubble Formation Depending on the Saturator and the Nozzle in the Dissolved Air Flotation System", Journal of the Korean Society of Environmental Engineers, 35(12), pp. 929-936, 2013. DOI: http://dx.doi.org/10.4491/KSEE.2013.35.12.929 crossref(new window)

6.
A. M Al Taweel, A. O Idhbeaa, A. Ghanem, "Effect of electrolytes on interphase mass transfer in microbubble-sparged airlift reactors", Chemical Engineering Science, 100, pp. 474-485, 2013. DOI: http://dx.doi.org/10.1016/j.ces.2013.06.013 crossref(new window)

7.
H. J. Park, S. Dockko, "Temperature effect in the precess of DAF as pretreatment of SWRO", Journal of the Korean Society of Water and Wastewater, 26(6), pp. 807-813, 2012. DOI: http://dx.doi.org/10.11001/jksww.2012.26.6.807 crossref(new window)

8.
M. Y. Han, Y. H. Park, J. Lee, J. S. Shim, "The Size Characteristics of Microbubbles in DAF According to Pressure Condition", Journal of the Korean Society of Water and Wastewater, 16(2), pp. 177-182, 2002.