The SD – Screw Press for Sludge is a compact and robust machine specifically engineered for the mechanical dewatering of municipal, industrial, and digestate sludge of various types. Its primary goal is to achieve the highest possible dry matter concentration by efficiently separating the solid phase from the liquid one. This process is crucial for minimizing the volume of sludge to be disposed of, thereby optimizing operational costs and reducing the overall environmental impact.

At the core of the SD’s technology is a variable-pitch screw operating at a slow, continuous rotation within a sturdy filtering cylinder. As the sludge is conveyed forward, it undergoes progressive compression along the screw, forcing water out through the filter mesh, which can be customized in size. This pressing and filtration process allows the SD to reach dry matter content levels of up to 35% in the dewatered sludge, depending on the input sludge characteristics. The machine can handle a wide range of sludge concentrations, from 0.8% up to 5%.

The SD is designed for continuous, quiet operation with exceptionally low energy consumption. Entirely constructed from AISI 304/316 stainless steel, it ensures superior corrosion resistance, high durability, and minimal maintenance requirements. Its design allows for easy cleaning and efficient management of even high-density or complex sludge, making it highly versatile.

The SD is the ideal solution for dewatering various types of sludge generated in diverse settings. It is widely used in municipal and industrial wastewater treatment plants for the dewatering of biological, chemical, and process sludge, as well as sludge from digesters. Its high efficiency makes it essential wherever a drastic reduction in sludge volume is a priority to optimize disposal logistics and costs.

Available in multiple models with different treatment capacities, the SD proves to be the perfect choice for anyone seeking a sludge press that combines high efficiency, rugged construction, and significant savings in management and disposal costs.