Abstract
The bubble properties in the column flotation system are deeply affected by the bubble-generator type, frother dosage, and superficial gas velocity. This study is to determine the bubble-generator type, which effectively produces micro-bubbles to affect the flotation efficiency. Characteristics for two types of bubble generators like the in-line mixer and sparger are examined by bubble properties such as bubble diameter, holdup and bubble velocity. Micro bubbles generated from an in-line mixer result in the increase of the bubble rising velocity and gas holdup. Bubbles produced at the in-line mixer were more effective for operating the flotation system than that of the sparger. It means that the in-line mixer bubble generator is more effective than a sparger in designing or operating the column flotation system.
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Lee, JE., Choi, WS. & Lee, JK. A study of the bubble properties in the column flotation system. Korean J. Chem. Eng. 20, 942–949 (2003). https://doi.org/10.1007/BF02697303
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DOI: https://doi.org/10.1007/BF02697303