Pick out the true statement pertaining to water treatment.
(A) Slow sand filters can remove colour completely
(B) Activated carbon can be used for taste & odour control without
subsequent filtration
(C) Application of activated carbon reduces the temporary hardness of water
(D) Normally, the turbidity is removed by adding a coagulant prior to
sedimentation
(A) Slow sand filters can remove colour completely
(B) Activated carbon can be used for taste & odour control without
subsequent filtration
(C) Application of activated carbon reduces the temporary hardness of water
(D) Normally, the turbidity is removed by adding a coagulant prior to
sedimentation