What is the primary purpose of presedimentation in water treatment?

The primary purpose of presedimentation in water treatment is indeed to reduce silt in water. This process involves allowing water to sit in a large basin or tank, facilitating the settling of suspended solids, such as silt and sediment, before further treatment steps. By removing these particles early in the treatment process, presedimentation helps improve the overall clarity and quality of the water, thereby enhancing the efficiency of subsequent treatment processes like coagulation and filtration.

This reduction of silt is crucial because high levels of suspended solids can lead to complications in treatment, such as increased chemical consumption, wear and tear on equipment, and difficulties in meeting regulatory standards for water clarity. By addressing the silt first, treatment facilities are able to optimize their operations and ensure cleaner, safer water for distribution.