NASCLA Accredited Commercial General ContractorMechanical, Electrical, Plumbing (MEP)Easy
A general contractor is overseeing the installation of a new commercial kitchen. The plumbing plans indicate a requirement for a grease interceptor. What is the primary purpose of a grease interceptor in a commercial kitchen's drainage system?
- ATo increase the flow rate of wastewater to the municipal sewer.
- BTo separate fats, oils, and grease (FOG) from wastewater.
- CTo prevent solid food waste from entering the sewer system.
- DTo sterilize wastewater before discharge.
Show answer & explanationAnswer & explanation
Correct answer: B. To separate fats, oils, and grease (FOG) from wastewater.
Grease interceptors are specifically designed to separate fats, oils, and grease (FOG) from kitchen wastewater before it enters the municipal sewer system, preventing blockages and environmental contamination.
Why the other options are wrong
- A. Grease interceptors do not increase flow rate; they can sometimes impede it if improperly maintained.
- C. While it may trap some solids, its primary function is FOG separation, not general solid waste.
- D. Sterilization is not the function of a grease interceptor; it's a physical separation device.
Grease Interceptor
A plumbing device installed in the drainage system of food service establishments designed to intercept and retain fats, oils, and grease (FOG) from wastewater before it enters the public sewer system.
- Prevents sewer blockages and backups.
- Required by plumbing codes for commercial kitchens.
- Must be regularly cleaned and maintained.
Memory trick: Grease Interceptor Grabs Grease, Guarding Drains.