| 摘要 |
An electrostatic separating apparatus comprises a tank which contains an insulating solvent solution, a feed inlet and water rectifier at the bottom thereof, and a pair of electrodes disposed in the solvent solution for application of a high direct current voltage therebetween. The side wall of the tank has a pocket formed between an outer wall and an inner wall, the upper edge of which is higher than the surface of the solvent solution to overflow floating impurities of an intermediate layer formed on the surface of the solvent solution to the pocket. The pair of electrodes is positioned on the side of the tank having the pocket and inclined upwardly at an angle of from 25.degree. to 40.degree.. A porous rectifying plate is provided substantially horizontally above the electrodes but below the upper end of the inner wall of the pocket. A blind baffle plate, inclined upward from the center of the tank to the pocket and above the porous rectifying plate, is provided with a substantially vertical porous plate at the upper portion thereof. A discharge outlet for treated water is provided on the upper portion of the side wall opposite the pocket. The tank is further provided with a pipe for automatic discharge of the solvent with a suction opening placed below the height of the water rectifier to enable efficient removal of substantially pure solvent.
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