What is the primary purpose of coarse screens in water treatment?

The primary purpose of coarse screens in water treatment is to filter out larger debris. These screens are typically the first line of defense in the water treatment process and are designed to remove large objects such as leaves, branches, and other debris that could damage equipment or interfere with the treatment scheme. By effectively removing larger particles, coarse screens help to protect downstream processes, allowing for more efficient treatment and enhancing the overall effectiveness of the water treatment facility.

Focusing on the larger debris removal also means that the subsequent treatment steps, such as finer filtration or chemical treatment, can focus on smaller particles and contaminants without being overloaded by bulk materials. This initial screening is crucial for maintaining the operational integrity of the entire water treatment process.