Which of the following about sequence of conventional surface-water treatment is correct?
Choose the correct answer
chlorination is done before raw-water intake only
coagulation, flocculation, sedimentation, filtration and disinfection are common steps
sedimentation comes after distribution
filtration eliminates the need for disinfection in all cases
Correct Answer
B. coagulation, flocculation, sedimentation, filtration and disinfection are common steps
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Conventional treatment progressively removes suspended and microbial contaminants. Correct option: B.
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