Capillary Siphoning による固液分離 : 懸濁粒子付着の影響

概要

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In order to investigate the capillary siphoning effect of a capillary bundle immersed in a slurry tank, the draining rate of clear water through a bundle of sterilized gauze, Q_s, was measured, after suspended solids adhered to the bundle and settled in a CaCO_3-slurry tank. Then, Q_s was compared with the draining rate of distilled water through the bundle of clear gauze, Q_o. The experimental results were discussed on the basis of a couple of models for adhesion of suspended solids to the bundle ; (a) adhesion to the surface of the bundle and (b) to the inside of the bundle. The conclusions obtained are : (1) Model (a) gave a fairly good agreement with the experimental relationship between the draining ratio Q^*(=Q_s/Q_o) and the amount of CaCO_3 Solids adhering to the bundle ΣW_p. (2) This fact indicates that the suspended CaCO_3 solids adhere to the surface of the bundle immersed in the slurry. (3) By vibrating the bundle, CaCO_3 Iayer on the bundle surface could be shaken off, and the draining ratio Q^* increased to about 0.8.
社団法人日本材料学会の論文
1981-09-15