Disc filtration is a type of mechanical filtration technology used to separate solid particles from liquids or gases by passing them through a series of stacked circular discs with grooves or ridges on their surfaces. The discs are arranged in a filter housing with the grooves facing inward, creating channels that allow the liquid or gas to pass through while trapping the solid particles on the surface of the discs.

Disc filters are widely used in various industries, including water treatment, food and beverage, mining, and oil and gas. They are commonly used for the removal of suspended solids, such as sand, silt, and algae, from water and other liquids. They can also be used for the separation of gas and liquid phases, the removal of contaminants from process fluids, and the recovery of valuable materials.
One of the advantages of disc filtration technology is its ability to handle high flow rates and large volumes of fluid, making it suitable for applications in which large amounts of material need to be processed. Disc filters are also relatively easy to maintain and clean, and their operation can be automated to minimize manual intervention.

However, one of the limitations of disc filtration technology is its susceptibility to fouling, which can occur when the solid particles accumulate on the surface of the discs, reducing their effectiveness over time. To prevent fouling, regular maintenance and cleaning of the filter are necessary. Additionally, disc filters may not be suitable for the removal of very small particles or dissolved contaminants, for which other filtration technologies such as membrane filtration may be more appropriate.