濾過と吸着の機能を持つ複層膜による溶存有機物を含有する微粒子懸濁液の分離特性 Separation Properties of Particulate Suspension Containing Dissolved Organic Matter Due to Double Layer Membrane with Function of Filtration and Adsorption
Filtration experiments were conducted using the double layer membrane consisted of the microfiltration membrane and the activated carbon membrane. Such separation properties as the filtration rate and the rejection were examined using silicon dioxide suspensions containing phenol. The double layer membrane was found to be quite efficient for the separation of the particulate suspensions including the dissolved organic matter. The silicon dioxide particles were rejected by the sieve effects of the microfiltration membrane, whereas phenol was rejected by the adsorption effects of the activated carbon membrane. High phenol concentration caused the reduction of the phenol rejection as filtration proceeded. Although the filtration rate increased with the increase of the filtration pressure, the phenol rejection in the incipient stage of filtration became relatively small under high pressure conditions. It was also shown that the adsorption rate obtained in filtration experiments was significantly larger than that in static adsorption experiments.
- 水環境学会誌 = Journal of Japan Society on Water Environment
水環境学会誌 = Journal of Japan Society on Water Environment 22(8), 692-698, 1999-08