Prime Solution - Rotary Fan Press - Brochure

When biosolids enter the system, pressure increases as waste moves slowly through a tapered channel. Friction intensifies as the biosolids compress against two rotating filter screens. Filtrate takes the path of least resistance and drains through the screens. The dryness of the resulting biosolid cakes varies per application, but averages between 18–24 percent, with some applications achieving as high as 60 percent. In other words: Friction and pressure work together to create high percentage cake solids.