活性汚泥細菌が産生する凝集物質の特性 : 乳業廃水の処理に関する研究(第4報)

概要

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Kaolinite flocculation by three bacterial strains isolated from activated sludges and by flocculants produced by these strains was studied. Strains nos. F20 and F30 and flocculatns produced by these two strains were able to flocculate kaolinite at a pH of 5.0 or less. When NaCl was added, kaolinite flocculation was observed up to neutral pH, and when CaCl_2 was added, flocculation was achieved throughout the pH range of 1.0 to 11.0. Strain no. D26 and its flocculant also had the ability to flocculate kaolinite at a pH of 3.0 or less. An infrared-spectrophotometrical comparison between the flocculant produced by strain no. F20 and its water-extracted exocellular polymers was made, and it indicated the identity of these two substances.
社団法人日本生物工学会の論文
1981-05-25