| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil skimmer which can be installed into a wastewater cleaning device such as a grease trap, and can be installed in almost all of the existing wastewater cleaning apparatuses. SOLUTION: This oil skimmer comprises a recovering roll in which a longitudinal direction shaft is installed in parallel to a water surface and its lower part comes into contact with the suspended oil floating on the water surface, a drive motor which rotationally drives the recovering roll through the longitudinal shaft, a scraper which scrapes the suspended oil stuck to the surface of the roller and pulled up onto the water surface by the rotation of the recovering roll and a storage tank which stores the scraped suspended oil.
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