oil can be used as food and oil-removed wastewater can be used as a water resource for melting snow. Then
introducing oil-water separation technology into a food processing factory has the potential to produce a profit from
wastewater. Furthermore, significant cost reduction of wastewater treatment facilities in the factory is expected.
However, in the real factories, it is judged based on feelings to introduce the oil-water separation technology into the
factory, and technical evaluation is not enough.
This research aims to calculate the value produced by separation using the Value Function and Separative Work
Unit, and reveal the cost recovery period of introducing oil-water separation technology and wastewater treatment
facilities. This study can be the aid of decision-making to introduce oil-water separation technology into a food
processing factory.