What is the purpose of a fuel/water separator in airport drainage?

• A. To separate fuel from water before entering storm water.
• B. To mix fuel with water.
• C. To store water for firefighters.
• D. To neutralize flame.

Answer: (A)

The main idea is to keep pollutants out of the stormwater by removing fuel from runoff. Fuel/water separators are placed in airport drainage to handle water that has been in contact with aircraft fueling or spills. Since aviation fuel is lighter than water, it forms a fuel layer on top while clearer water flows through. The separator provides a chamber where water can pass while the fuel is skimmed off or collected separately for proper disposal or recycling. This prevents fuel from entering the storm sewer and environment, helps meet environmental regulations, and reduces fire risk by limiting surface fuel. Regular maintenance is needed to remove the collected hydrocarbons.