In the livestock industry, manure contains a large amount of organic matter, nutrients, and microorganisms. If these wastes are discharged without proper treatment, they can cause severe pollution to soil and water bodies, posing a threat to ecosystems.

To fully utilize livestock waste and reduce resource wastage, solid-liquid separation is typically required. This process divides the waste into a liquid portion that can be used as organic fertilizer or as fertilizer for farm irrigation, and a solid portion that can be used for composting, biogas production, or other recycling processes.

In livestock waste treatment, screw separators are commonly used equipment that can efficiently separate animal manure into liquid organic fertilizer and solid materials. However, the key to this process lies in the wedge wire screen cylinders used in screw separators. The design and performance of wedge wire screen cylinder determine the quality and efficiency of solid-liquid separation, making it a key element of the process.

Within the screw separator, the slurry is compressed by the screw shaft inside the tube as it passes through the wedge wire screen cylinder, allowing the liquid to escape. The screw tube conveys the solid material to the machine’s outlet, while the liquid flows into the main body of the separator through the wedge wire screen cylinder, where it is collected and used as fertilizer.