What is the function of a grease trap?

The primary function of a grease trap is to separate and store oil and grease from wastewater before it enters the main sewage system. This is particularly important in commercial kitchens and food service establishments where large amounts of fats, oils, and grease (FOG) are generated. A grease trap works by slowing down the flow of wastewater, allowing these lighter substances to rise to the top and be captured while heavier solids settle at the bottom. Proper functioning of a grease trap helps prevent clogging in sewer lines, reduces the potential for environmental damage, and ensures compliance with local regulations regarding wastewater management.

In contrast, filtering solid waste from wastewater focuses on different types of solids, and while it may seem similar, it doesn't specifically address the unique challenges posed by fats and oils. Treating gray water for reuse involves a different process aimed at water conservation, while purifying drinking water is a separate function that requires advanced treatment technologies not related to the operation of grease traps.