Question

Identify the correct sequence mostly used in water purification systems.

• A. 1) Loading tank
  2) Sedimentation
  3) Filtration
  4) Chlorination
• B. 1) Sedimentation
  2) Loading tank
  3) Filtration
  4) Chlorination
• C. 1) Filtration
  2) Loading tank
  3) Sedimentation
  4) Chlorination
• D. 1) Chlorination
  2) Loading tank
  3) Sedimentation
  4) Filtration

Answer 1

The correct option is B 1) Sedimentation

2) Loading tank
3) Filtration
4) Chlorination
Dirty water is first made to undergo sedimentation to remove solid impurities that settle at the bottom of the beaker. Then loading is performed on the water after which it is filtered to remove any insoluble impurities still present in the water. Chlorination is the last step by which water is disinfected to give clean water.