Study the given differences between primary sludge and activated sludge and select the incorrect one

Question

Study the given differences between primary sludge and activated sludge and select the incorrect ones.

Professor PC Thomas Classes · Answer

(b) : Activated sludge possesses flocs of decomposer microbes, whereas, primary sludge does not possesses flocs. Unlike primary sludge, a lot of decomposition occurs during formation of activated sludge.