Why a small part of activated sludge is pumped back into the aeration tank during sewage treatment?

Read the following statements about activated sludge. a. It is the effluent passed from anaerobic digester to the settling tank. b. A small part of activated sludge is pumped into large tanks called anaerobic sludge digesters. c. A small part of activated sludge is pumped back Into the aeration tank to serve as inoculum. Which of the above statements are incorrect?

Read the following statements about activated sludge. Br a. It is the effluent passed from anaerobic digester to the settling tank. Br b. A small part of activated sludge is pumped into large tanks called anaerobic sludge digesters. Br C. A small part of activated sludge is pumped back Into the aeration tank to serve as inoculum. Which of the above statements are incorrect?

What is the function of aeration tank in sewage treatment?

Small part of activated sludge is passed back into primary sedimentation tank. If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.

After secondary treatment, a part of activated sludge is passes back to aeration tank as inoculum while most of the part of activated sludge passed to

Which of the following is True/false A small part of activated sludge is pumped into large tank called anaerobic sludge digesters.

Which of the following is True/false A small part of activated sludge is pumped into large tank called anaerobic sludge digesters.

What is the purpose of bubbling air into the aeration tank during the treatment of sewage ?