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Flocculation of quartz and kaolin by alginate-protamine complex

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Title: Flocculation of quartz and kaolin by alginate-protamine complex
Authors: Hideo, Maruyama Browse this author →KAKEN DB
Hideshi, Seki Browse this author →KAKEN DB
Ako, Igi Browse this author
Keywords: flocculation
complex flocculant
solid-liquid separation
sodium alginate
protamine sulfate
Issue Date: 15-Oct-2020
Publisher: Elsevier
Journal Title: Biochemical Engineering Journal
Volume: 162
Start Page: 107713
Publisher DOI: 10.1016/j.bej.2020.107713
Abstract: A novel bioflocculant, alginate-protamine complex, was developed and was proposed in this study. Alginate and protamine have no flocculating ability solely, however, the mixture solution of alginate and protamine or alginate-protamine complex showed a good flocculating ability. This study reported a flocculating performance of the alginate-protamine complex. The flocculation performance was evaluated by clarification experiment with kaolin and pulverized quartz sand in terms of relative absorbance. The flocculation performance was examined by varying experimental conditions, especially, alginate/protamine mass mixing ratio and pH. The flocculation performance was significantly affected by the mass mixing ratio and pH. The most effective mass mixing ratio was found at 0.4-0.8 in the pH range of 3-7. The flocculation performance was also affected significantly by pH. Good flocculation performance was provided at pH 3-7, however, the performance was getting worse at pH 8-11.
Rights: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
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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