Influence of Air Flow Rate on Flotation of Marine Diatoms using Venturi Tube Type Microbubble Generator

Kazuhiro ITOH; Tomoki NAKASUJI; Yasuhiro KASHINO; Kentaro IFUKU; Kouji MAEDA; Takuji YAMAMOTO; Shogo TAGUCHI

doi:10.11457/swsj.73.6_354

Short Paper

Influence of Air Flow Rate on Flotation of Marine Diatoms using Venturi Tube Type Microbubble Generator

Kazuhiro ITOH, Tomoki NAKASUJI, Yasuhiro KASHINO, Kentaro IFUKU, Kouji MAEDA, Takuji YAMAMOTO, Shogo TAGUCHI

Author information

Keywords: Microalgae, Diatom, Microbubble, Flotation

JOURNAL FREE ACCESS

2019 Volume 73 Issue 6 Pages 354-355

DOI https://doi.org/10.11457/swsj.73.6_354

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Abstract

A flotation test was conducted for a culture fluid of marine diatoms, Chaetoceros gracilis, using a Venturi tube. Triacylglycerol in the foam increased as a result of flotation of cells using microbubbles without any coagulant and pH adjustment. It was found that an increase in air flow rate promoted the flotation of cells.

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