Question

What action can be implemented to reduce excessive coagulant doses for low-turbidity waters? (A) add alkalinity...

What action can be implemented to reduce excessive coagulant doses for low-turbidity waters?

(A)

add alkalinity to reduce colloid stability

(B)

apply direct filtration by bypassing sedimentation

(C)

increase the colloidal concentration by adding clay

(D)

pre-filter the water before feeding any coagulant

Engineering   Civil-Engineering   
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