A grease trap is a hydraulic engineering unit designed to remove fats, oils, grease (FOG), and suspended solids from wastewater before it enters the sewer network or wastewater treatment facilities.
Simply put:
fats and oils do not dissolve in water.
They rise to the surface, settle on pipeline walls, and over time form dense deposits.
This leads to:
pipe blockages
malfunction of sewer systems
reduced efficiency of downstream treatment processes
For this reason, grease traps are installed at the initial stage of the treatment system.
THE PRINCIPLE OF OPERATION
The operation of the equipment is based on the difference in density between contaminants and wastewater.
The treatment process occurs in several stages.
First, the wastewater flow enters the primary settling chamber, where the flow velocity decreases.
As a result:
- heavy mechanical particles settle at the bottom
- lighter fractions of fats and oils rise to the surface
At this stage, the majority of contaminants are removed.
The flow then enters the secondary treatment chamber, where additional separation of impurities occurs.
Special internal baffles and hydraulic barriers prevent grease from leaving the unit together with the treated flow.
In the upper part of the chamber, a layer of grease gradually accumulates, which is periodically removed during equipment maintenance.
After passing through all stages, the pre-treated flow is discharged into the sewer system or directed to subsequent treatment processes.
The equipment is manufactured from corrosion-resistant materials designed to withstand aggressive wastewater environments.
The grease trap operates without complex mechanical components and requires minimal energy consumption.
The design is intended for long-term operation under continuous contact with contaminated wastewater.
- Protection of sewer networks
Prevents pipeline blockages and reduces the load on downstream wastewater treatment facilities.
- industrial enterprises
- food processing plants
- restaurants and catering facilities
- meat and fish processing plants
- dairy production facilities
- commercial kitchens and food production workshops
The use of grease traps stabilizes the operation of sewer systems and significantly improves the efficiency of subsequent wastewater treatment stages.