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Flotation of blue-green algae using methylated egg ovalbumin

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Title: Flotation of blue-green algae using methylated egg ovalbumin
Authors: Maruyama, Hideo Browse this author →KAKEN DB
Seki, Hideshi Browse this author →KAKEN DB
Suzuki, Akira Browse this author
Keywords: flotation
methylated egg ovalbumin
blue-green algae
Issue Date: 1-Dec-2009
Publisher: Elsevier
Journal Title: Chemical Engineering Journal
Volume: 155
Issue: 1-2
Start Page: 49
End Page: 54
Publisher DOI: 10.1016/j.cej.2009.06.011
Abstract: Removal of blue-green algae by dispersed gas flotation was conducted. Methylated ovalbumin (MeOA) was used as frother and flocculant, which is a biodegradable substance. The continuous flotation experiments were conducted at different feed mass flow rate of the blue-green algae cells and MeOA. The operating variables were the mass flow rate of blue-green algae cell and MeOA, the initial concentration of the cells and MeOA, and superficial gas velocity. The results showed that the mass flow rate of MeOA was most dominant variable affected to the removal efficiency and that the removal efficiency achieved ca. 0.85 when a ratio of the mass flow rate of MeOA and that of the cells was over 0.3. A proposed flotation model considering the adsorptions of MeOA to the cells, MeOA to bubble surface and the cells bearing with MeOA to bubble surface was applied to explain the experimental removal efficiency. The experimental and the calculated removal efficiency agreed well within error 19 %, indicating that the proposed model was valid fundamentally.
Type: article (author version)
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 丸山 英男

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