抄録
The used cutting oil contains not only fine metals but also sludge and other compounds which cause the source of odors as time elapses. In the present study, the two types of electrolytic bubble flotation reactors, such as the flow type reactor and the batch type reactor, were investigated to remove these compounds and to regenerate the cutting oil with the aim of developing the maintenance-free and innovative cutting oil treatment process. When the flow type reactor was used, 39% of fine aluminum particles and sludge were removed based on weight basis from the filter catch. When the batch type reactor was used, 75% of these were removed. The cutting oil can be used for regeneration and its characteristic was not deteriorated when the treatment time was less than 40 s at 20V. When the cutting oil regeneration system with the batch type reactor followed by the filter was used, the complete removal of contaminant was obtained.
