What is the first step for drinking water treatment? Correct Ans -
First Filtration
First Filtration Correct Ans - Water is filtered through screens that
remove fish leaves and trash.
What is the second step for drinking water treatment? Correct Ans -
Coagulation
Coagulation Correct Ans - Alum is added to form sticky flocs mud
bacteria and other particles stick to the flocs . The water and flocs then sink
into setting basins
What is the third step in drinking water treatment? Correct Ans -
Second filtration/sedimentation
What happens during second filtration? Correct Ans - The water
trickles down through sand and gravel which filters algae bacteria and
some chemicals out.
What is the fourth step in drinking water Correct Ans -
Chlorination
Chlorination Correct Ans - Chlorine is added to kill remaining
organism
What is the fifth step water treatment? Correct Ans - Aeration
Aeration Correct Ans - This is the process of forcing air through the
water to release gases which reduce unpleasant odors and taste.
What are additional treatments that community add to drinking water?
Correct Ans - Sodium or lime may be added to soften the walk hard
water and some communities at fluoride to help prevent tooth decay.
Central pump area/tank Correct Ans - After treatment this is where
the treated water is kept
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