A bar screen chamber is a type of primary treatment equipment used in wastewater treatment plants to remove large solids such as rags, plastics, and other debris from the incoming wastewater stream. The bar screen chamber typically consists of a series of parallel vertical bars spaced apart to form a screen or grid. As the wastewater flows through the screen, the large solids are trapped on the surface of the bars while the screened wastewater flows through the bars and moves on to the next stage of treatment.
Bar screen chambers can be designed mechanically or manually cleaned, depending on the application and site conditions. Mechanically cleaned bar screens use a mechanical rake to remove the debris that accumulates on the screen surface and deposit it into a container for disposal. Manually cleaned bar screens require an operator to remove the debris with a rake or other tool.
Bar screen chambers are typically used as the first stage of treatment in a wastewater treatment plant and are essential for protecting downstream equipment from damage due to large solids. They are also used in industrial applications to protect pumps, valves, and other process equipment from damage caused by debris in the wastewater stream.