Multiple choice

Which of the following processes is/are involved in the purification of water in a WWTP?

a. Sedimentation b. Filtration c. Distillation d. Chlorination

  1. Only a

  2. Only a and b

  3. Only a, b and c

  4. Only b and d

  5. Only a, b and d

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option. The treatment of sewage at WWTP involves processes like sedimentation, filtration and chlorination.