The primary role of a BOR screen in wastewater treatment is to:

The primary role of a BOR (Bar Screen) in wastewater treatment is to remove large solids from the wastewater before it undergoes further treatment processes. This screening process is crucial because large solids can cause damage to pumps and other equipment downstream, interfere with biological processes, and create operational challenges.

By effectively capturing and retaining these large materials, the BOR screen helps to protect the overall treatment system, ensuring that both mechanical and biological components operate efficiently. The removal of these solids is an essential first step in the treatment process, allowing for a clearer water flow that can be treated with less risk of clogging or damage to subsequent systems.

In contrast, increasing flow rate would not typically be a primary function of a screen, as its main job is to filter out debris rather than influence the hydraulic characteristics of the system. Reducing particle size is not a function of the screen either; instead, this would be addressed in later treatment stages, such as sedimentation or biological treatments. Lastly, while enhancing chemical treatment is an important aspect of the overall wastewater treatment process, it is not a direct role of the BOR screen, which primarily focuses on the physical removal of larger solids.