Flotation of Starch with Anionic, Cationic, and Nonionic Collector : Fundamental Study on the Removal of Organic Matters from Wastewater

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概要

• 論文の詳細を見る

• Flotation experiments of potato starch particle with several collectors; sodium dodecylsulfate and sodium oleate as anionic collectors, sorbitan monolaurate as a nonionic collector and dodecylammonium and dodecyltrimethylammonium salts as cationic collectors, were carried out. With anionic and nonionic collectors, good floatability was not observed, whereas the starch particles were successfully recovered with cationic collectors. The results indicated that the surface hydrophilic/hydrophobic property of the starch particle could be modified with cationic collectors. The result of microelectrophoretic measurement showed that the surface of the starch particle is negatively charged in water, and therefore, cationic collector adsorbs electrostatically onto the starch particle. The results of adsorption experiment showed that neutral amine molecules adsorbed onto the starch surface and/or absorbed into the starch particle. It was suggested that capillary condensation or similar phenomena stripped neutral molecules from the water phase.

• 環境資源工学会の論文
• 2008-04-15

著者

• 横井 惇

  京大院・エネルギー科学研究科

• Yokoi Atsushi

  Department Of Energy Science And Technology Graduate School Of Energy Science Kyoto University

• KUSAKA Eishi

  Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University

• Kusaka Eishi

  Department Of Energy Science And Technology Graduate School Of Energy Science Kyoto University

関連論文

• 浮選による有機物懸濁液の濃縮に関する基礎的研究
• Activation with Polyvalent Metal Salts in the Anionic Flotation of Starch : Fundamental Study on the Removal of Organic Matters from Wastewater
• Flotation of Starch with Anionic, Cationic, and Nonionic Collector : Fundamental Study on the Removal of Organic Matters from Wastewater
• 柔軟な両腕動作制御を可能にする脳内メカニズム (特集 ファインモーターコントロール)

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