Question

Q.11. Read the following sentences carefully and rearranges them in correct sequencing order:
i. Disinfection of secondary clarified water with ozone gas.
ii. Settling of grit and pebbles by reducing speed of water in grit chamber.
iii. Aeration to increase decomposition of faeces and detergent.
iv. Sedimentation of waste water to allow settling of sludge.
v. Supply disinfected water for industrial application

Answer 1

Answer:

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