7% of solids concentration of thickened sludge is obtained from gravity thickener. What is the type of sludge? Options: A . &nbspPrimary sludge B . &nbspSecondary sludge C . &nbspTertiary sludge D . &nbspActivated sludge

7% of solids concentration of thickened sludge is obtained from gravity thickene

Question

7% of solids concentration of thickened sludge is obtained from gravity thickener. What is the type of sludge?

Options:

A . Primary sludge

B . Secondary sludge

C . Tertiary sludge

D . Activated sludge

Answer: Option D
Answer: (d).Activated sludge

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