GATE AR 2021 AR Q43: Services and Infrastructure

Choose the correct options with regard to activated sludge process.

Your answerSelect all correct options. You can choose more than one.

The activated sludge process is an aerobic process

The entire settled sludge is sent back to the aeration tank

The entire effluent from the final settling tank is sent back to the aeration tank

In aeration tanks, sewage is aerated and agitated for a few hours

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