a)The water treatment process
b)Stage 1. Filtration of an intake
Water is made to pass through a series of sieves where large particles of impurities are trapped
Stage 2 Softening of water
Water is let to circulate in a tank (open) and mixed with soda ash to soften it
Stage 3 Coagulation and sedimentation
Alum is added to water to facilitate sedimentation and coagulation. Water stays here for 36 hours
Stage 4 Filtration
Water passes into infiltration tank where all the remaining solid particles are removed.
Stage 5 Chlorination
Filtered water enters chlorination tank where a small amount of chlorine is added to kill disease agents.
Stage 6. Storage
Treated water is stored before entering distribution channels for use.
Kavungya answered the question on March 25, 2019 at 06:02
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