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Effect of Bubble Size in DAF  

Park, Yong-Hyo (버블테크)
Han, Moo-Young (서울대학교 지구환경시스템공학부)
Publication Information
Journal of Korean Society of Water and Wastewater / v.17, no.4, 2003 , pp. 528-533 More about this Journal
Abstract
Bubble size is one of the most important parameters affecting DAF (Dissolved-Air-Flotation) process. It is generally known that small bubbles are preferred. However, the fact seems to be based on the particle removal efficiency at contact zone only, without considering separation zone. Besides, the effect of bubble size on the overall DAF process has not been fully investigated yet. Therefore, the effect of bubble size on collision efficiency, collision chances, and surface loading rate is calculated using theoretical models, and the results are discussed in this paper.
Keywords
Bubble size; collision chances; collision efficiency; DAF; surface loading rate;
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