| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil water separator capable of highly separating and removing fine dispersed oil in water to be treated in a short time. SOLUTION: The oil water separator 10 is equipped with an oil water separation tank 20 receiving water to be treated having oil drops dispersed therein to separate the same into separated oil and treated water to discharge them outside. The oil water separation tank 20 has an introducing port 37 for introducing water to be treated provided to the lower part thereof and has a separated oil outlet 51 and a treated water outlet 54 provided to the upper part thereof. The introducing port 37 is partitioned from the separated oil outlet 51 and the treated water outlet 54 by a permeation plate 42 having a large number of pores, and a rough granulation chamber 40 is formed under the permeation plate 42 and filled with a large number of oleophilic particles 18, and water to be treated is brought into contact with the large number of oleophilic particles 18 to separate water to be treated into separated oil and treated water. The oleophilic particles 18 have a particle size larger than that of the large number of pores of the permeation plate 42 and the mean particle size thereof is not more than 1,500μm. COPYRIGHT: (C)2004,JPO
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