What is dewatering and why a filter press?
Star PolyPresses are specifically designed for efficient dewatering of both wastewater sludges and process slurries. Dewatering is the process of separating liquids from solids. Efficient dewatering must accomplish two goals: remove as much liquid as possible in order to concentrate the solids and compress these solids into compact cakes for easy, low-cost disposal in the case of wastewater sludges, or for reduced cost from further drying in the case of process slurries where the cake is the product. The filter press has proven itself to be the most efficient dewatering device available today. Because it operates at much higher differential pressures, the filter press produces cakes with lower moisture content than either belt presses or rotary drum vacuum filters. These pressures make the filter press much more forgiving than a centrifuge and allow it to produce consistently high solids content cakes, even under inconsistent feeding conditions. The filter press is typically less costl
