What is the purpose of a grease trap in a wastewater system?

A grease trap serves a crucial function in a wastewater system by specifically targeting the accumulation of grease and fats that can clog plumbing and create hazardous conditions in the sewer system. In commercial settings such as restaurants or food processing areas, large amounts of grease are generated, and if these substances are allowed to enter the wastewater system without treatment, they can solidify and adhere to pipes. This leads to blockages, backups, and potential damage to the infrastructure.

By utilizing a grease trap, grease and other lipids are separated from the wastewater, allowing only water and smaller particles to flow into the sewer system. This not only helps maintain smooth operation within the plumbing but also prevents the formation of grease-related issues that could necessitate expensive repairs or even environmental penalties due to overflow or contamination.

The other options touch on different aspects of wastewater management but do not accurately reflect the primary function of a grease trap. While filtering solids or treating water may be important processes in wastewater treatment, the grease trap's main goal remains focused on managing grease to ensure the long-term efficiency and safety of the wastewater system.