Food processing generates substantial volumes of wastewater containing oils and fats. In the production of salad dressings, marinades and similar products, these contaminants enter the wastewater stream and must be removed reliably before the water is discharged to the sewer or sent to a wastewater treatment system.
A manufacturer of salad dressings and oil-based marinades needed an efficient way to remove fats and oils from its process wastewater. The existing grease-separation equipment could not provide consistently reliable performance.
The thickness of the fat layer in the grease trap could not be monitored reliably. As a result, fat regularly overflowed into the drainage system, prompting complaints from the downstream municipal wastewater treatment plant and even putting the company’s discharge permit at risk.
The separated fat therefore had to be discharged automatically into a suitable collection container, reducing manual maintenance and improving operational safety.
A customized FRIESS S100 oil skimmer was installed to continuously empty the grease trap.
A heated discharge chute prevents the fat from solidifying and ensures continuous, reliable discharge even at lower temperatures.
The mobile system can be moved together with its IBC collection container using a pallet truck or forklift, leaving the grease-trap area accessible to trucks.
A purpose-built mounting frame secures the oil skimmer directly to the IBC container, creating a compact, space-saving solution.
Timer control combined with IBC level monitoring enables highly automated operation and prevents the collection container from overflowing.
Fat is prevented from entering the sewer, ensuring consistent compliance with municipal wastewater requirements.
Automatic discharge reduces manual maintenance and improves operational safety.
The mobile design allows flexible deployment and economical use.
The system provides an efficient, practical pretreatment solution for fat-laden wastewater in the food industry.
