Question

what is the purpose of bubbling air into the aeration tank during the treatment of sewage.

Answer 1

it's purpose is to provide oxygen to activate aerobic bacteria and make them grow rapidly. this bacteria digest harmful wastewater remaining in the wastewater leaving behind fairly pure water.

Answer 2

its purpose is to provide oxygen to activated aerobic bacteria and make them grow rapidly this bacteria digest harmful waste water remaining in the wastewater leaving behind fairly pure water