What is the first step in the water treatment process?

The initial step in the water treatment process involves screening to remove large debris and particles. This step is critical because it prepares the water for subsequent treatment stages by eliminating larger contaminants such as sticks, leaves, and trash that can interfere with further processing. By removing these larger particles, screening helps prevent damage to equipment, such as pumps and filters, and enhances the efficiency of the coagulation and sedimentation phases that follow.

Once the larger materials are removed, the water flows into the next treatment stages, which focus on reducing smaller impurities and pathogens. This progression ensures that each level of the treatment process can function effectively, as removing large contaminants early on creates a cleaner starting point for more advanced treatment measures. In summary, screening sets the foundation for a successful water treatment process, making it an essential first step.