Which of the following is a primary treatment process in surface water treatment?

Prepare for the TCEQ Class C Surface Water License Exam. Study with flashcards and multiple-choice questions, each offering hints and explanations. Get exam-ready with us!

Sedimentation is a primary treatment process in surface water treatment primarily because it involves the removal of suspended solids from water through the process of settling. During sedimentation, water is held in large basins where gravity pulls heavier particles down to the bottom, allowing clearer water to be drawn off from the top. This process effectively reduces the turbidity of the water and is essential in preparing it for further treatment steps.

While other options do play important roles in water treatment, they are not classified as primary treatment processes. For instance, coagulation is typically considered a pre-treatment process that facilitates sedimentation by destabilizing colloidal particles, making them easier to settle out. Filtration comes after sedimentation and is used to remove remaining particles from the water, while chlorination is a disinfection step that occurs later in the treatment process to eliminate pathogens. Understanding the correct sequencing and role of these processes is crucial for effective water treatment management.

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