or the outside, the solids are removed either by scraping, or by gravity because of the slope.
In this type of system, the Prepazur (figure 2) is a drum appliance (0.6 to 1.5 mm) designed for effluent pre-treatment ... Filtration, Wastewater, Pretreatments, Straining ... Filtration Wastewater Pretreatments Straining ... Pretreatment...