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FRIESS W40 FOOD-INDUSTRY WASTEWATER CASE STUDY

Remove the thick fat layer.
Restore reliable wastewater treatment.

A thick, sticky fat layer in Plukon Food Group’s wastewater separator had developed microbial spoilage and unpleasant odours. A W40 oil skimmer with a collection hose guided along the full tank length rapidly transferred the entire layer to a separate container, restoring reliable wastewater treatment and avoiding unnecessary disposal costs.

Customer Background

Plukon Food Group supplies meals, salads, poultry products and other foods to leading European food manufacturers, with a focus on healthy, sustainably produced food. At the time of this case, it operated 34 sites in seven countries and employed around 9,500 people.

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The Challenge

A large volume of floating fat accumulated in the wastewater treatment plant’s separator because substantial salad-dressing residues entered the wastewater. The organic fat formed a thick, sticky layer and generated foam, making it difficult to remove.

Floating fat layer on food-industry process wastewater before oil-skimmer treatment
Over time, this dense layer remained in the separator, developed microbial spoilage and caused unpleasant odours. Disposing of all the wastewater together with the floating, spoiled fat layer would have been very expensive and would not have provided a lasting solution, because the same problem would have continued to recur. A different treatment method was therefore required.

The Solution: FRIESS W40 Oil Skimmer

FRIESS W40 oil skimmer for removing floating oil from industrial wastewater and cooling water
FRIESS W40 hose oil skimmer sweeping floating fat from food-industry wastewater

Because the greasy salad-dressing residues floated on the wastewater surface, a hose-type oil skimmer offered an effective solution.

For this application, FRIESS selected the W40 oil skimmer, a model proven in many comparable applications.

The oil skimmer was installed on the short side of the separator tank. An additional hose guide carried the oil-collecting hose along the full tank length, enabling it to sweep the surface and remove the floating fat layer thoroughly.

Results

Within a short time, the oil skimmer transferred the entire fat layer into a separate collection container. The solution removed the immediate problem while also enabling the oily residues to be handled sustainably and cost-effectively. The residues could be stored safely in a small sealed container until disposal after water separation. The customer was very satisfied: the wastewater treatment system returned to reliable operation and unnecessary disposal costs were avoided. This application once again demonstrates the versatility and efficiency of FRIESS hose-type oil skimmers and shows how a tailored wastewater-treatment solution can resolve a complex operating problem quickly and effectively.
Oil Skimmer Overview

Thick floating grease, foam and odours driving up wastewater disposal costs?

Please share your separator tank dimensions, wastewater flow rate, grease source and temperature, floating layer thickness, water-level fluctuations, odour issues and current disposal method. Our China engineering team can recommend a W40 oil skimmer, collector hose and hose-guide configuration suited to your conditions.

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