During water purification, the suspended particles are removed from the sedimentation tank.
What is the correct order of the below mentioned units in water purification system? 1) Chlorination tank 2) Loading tank 3) Sedimentation tank 4) Filtration tank
100. What is the role of ultraviolet (UV) radiation in the water purification systems? [2012-I]
i) It inactivates /kills the harmful microorganisms in water.
ii) It removes all the undesirable odours from the water.
iii) It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.
Which of the statements given above is/are correct?