| 摘要 |
PROBLEM TO BE SOLVED: To reduce a facility running cost of a separation treatment tub for carrying out floatation separation of a separation object such as fats and oils, and coating sludge in treated water in a tub. SOLUTION: The separation treatment tub 2 for carrying out floatation separation of the separation object such as the fats and oils U, and the coating sludge S into a defatting liquid L and W in the tub comprises air bubble generation means 5 for generating a fine particle size air bubble such as a microbubble or a nanobubble in the treated water W and L in the tub. COPYRIGHT: (C)2008,JPO&INPIT
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