This machine used to reduce the water content of animal dung, biogas slurry, waster water andetc. The solid content in the raw material can be 30-40%, and the moisture of final product is about40%, you can’t press out any water by hands. Sludge pump in the manure pits upgrade the original fecal residue to solid-liquid separator, the extrusion screw which is installed inside the screen will push the original feces residue to move forward to the outlet. Dry product will come out from discharge outlet by pressing of screw. The liquid which is filtered through the screen mesh will flow outside. This machine used to reduce the water content of animal dung, acid-sludge, medicine dregs, kitchen rubbish, biogas waste and many other dregs.