1981 年 30 巻 336 号 p. 888-892
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, Qs, was measured, after suspended solids adhered to the bundle and settled in a CaCO3-slurry tank. Then, Qs was compared with the draining rate of distilled water through the bundle of clear gauze, Qo.
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*(=Qs/Qo) and the amount of CaCO3 solids adhering to the bundle ΣWp.
(2) This fact indicates that the suspended CaCO3 solids adhere to the surface of the bundle immersed in the slurry.
(3) By vibrating the bundle, CaCO3 layer on the bundle surface could be shaken off, and the draining ratio Q* increased to about 0.8.