Abstract
Oil-water separation technology contributes to reduce the initial cost and running cost of the facilities for wastewater treatment,
and reuse the recovered oil as valuable resources, such as edible oil under sanitalization equipment in food factory, material for
biofuel or automobile tire. Using Value Function and Separative Work Unit (SWU) of separation engineering for the oil-water
separation technology in the food processing factory, Naoetsu-Yushi Co. Ltd. Japan, economical advantage of the separation
technology was clarified from the viewpoint of reducing the initial cost and running cost of the facilities for wastewater
treatment, and reusing the recovered oil.