What is the purpose of sedimentation in water treatment?

Practice Questions

Q1
What is the purpose of sedimentation in water treatment?
  1. To kill bacteria
  2. To remove dissolved gases
  3. To allow heavier particles to settle
  4. To add minerals

Questions & Step-by-Step Solutions

What is the purpose of sedimentation in water treatment?
  • Step 1: Water from a source (like a river or lake) is collected and brought to a treatment facility.
  • Step 2: The water contains various particles, such as dirt, sand, and other impurities.
  • Step 3: The water is placed in a large tank where it can sit still for a while.
  • Step 4: Because of gravity, the heavier particles in the water start to sink to the bottom of the tank.
  • Step 5: As the heavier particles settle, the water above becomes clearer.
  • Step 6: The clear water can then be taken from the top for further treatment, while the settled particles at the bottom can be removed.
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