環境

[25-13] Evaluation of the flocculation and de-flocculation performance and mechanism of polymer flocculants

^〇ポヌ ジョジアヌ¹、井出 トモヒト²、鈴木 明子²、辻 ヒデユキ²、ドドビバ ジョルジ¹、王 イ¹、藤田 豊久¹ (1. The University of Tokyo、2. Toshiba research and development center)

司会:鶴田 猛彦(八戸工業大学)

Understanding the interaction mechanism between polymeric flocculants and solid particles in two oppositely charged solutions: bentonite and calcium fluoride, is of great practical and fundamental importance. Inorganic flocculants based on aluminum(III) or iron(III); cationic, anionic and non-ionic organic flocculants were used.The solution pH, which highly influenced the flocculation performance of the system, has been used as function of turbidity removal, sediment volume and velocity.