DRAINAGE SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a drainage system which can immediately separate and collect oil leaked to wastewater when the leakage occurs, and can prevent outflow of the oil to outside of the site.SOLUTION: The drainage system comprises: an oil leakage detector 11 detecting leakage of oil to wastewater; an oil-water separation mechanism 20 separating the oil from wastewater containing oil; and a control unit 15 activating the oil-water separation mechanism 20 when the oil leakage detector 11 detects the leakage of oil to the wastewater. The oil-water separation mechanism 20 comprises an oil-water separation body containing a fluorine-based compound having oil repellency-imparting group and hydrophilicity-imparting group.SELECTED DRAWING: Figure 1