Slaughterhouse wastewater often generates wastewater in the industrial slaughter process, washing equipment and plants, and the production of by-products. The wastewater include of the organic pollutants, oil, protein and fibres. The quality of slaughterhouse effluent depends on many factors, such as blood retention efficiency, water use, type of slaughtered animal and amount of meat processing. Slaughterhouse wastewater, sewage, river, lake, etc. It must be purified before being discharged to the receiving environment. In the treatment of slaughterhouse wastewater, the most suitable methods are selected by performing wastewater characterization.

The general characteristics of slaughterhouse wastewater show that biological treatment applications are an ideal solution. However, it requires efficient separation technology before the biological treatment step, as it contains high concentrations of components such as suspended solids, oil and grease that can cause process instability. PROSET-DAF units are widely used in primary treatment of slaughterhouse industry wastewater to separate suspended and/or oily particles from wastewater. The PROSET-DAF unit is a compact system that can be easily transported and made entirely of steel. These units achieve the highest separation efficiency on suspended solids, oils and grease and insoluble COD.