Civil Engineering MCQAE Level Civil Engineering
Coagulation in water treatment is aided by rapid mixing because it:
Environmental EngineeringEnvironmental EngineeringHARD
Choose the correct answer
A
settles sludge instantly
B
disperses coagulant uniformly
C
replaces filtration
D
removes dissolved salts completely
Correct Answer
B. disperses coagulant uniformly
Why is this the answer?
Rapid mixing quickly distributes coagulant and promotes destabilisation of colloids before flocculation.
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