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27/12/2020 3:44 pm
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Draw a flow diagram to show the water purification system in waterworks.
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27/12/2020 3:49 pm
Water purification system in water works
Water is collected in the reservoir → The water is sent to sedimentation tank to allow solids to settle → It is then passed to 2nd tank i.e., loading tank, so that the suspended impurities are loaded to settle down as sediment. → Then water reaches the filtration tank
In filtration tank water passes through different layers of sand and gravel as shown in the above figure this is for adsorption of impurities.
The clear water reaches a chlorinated tank where water is mixed with bleaching powder/chlorine to kill bacteria and then supplied to houses.