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What are anaerobic, anoxic, and aerobic tanks?
The A2O process primarily uses biological tanks with aeration devices, propellers (anaerobic and anoxic sections), and reflux. The channel layout is divided into anaerobic, anoxic, and aerobic tanks. An anaerobic tank is a reaction tank without dissolved oxygen or nitrates. Hydrolysis, acidification, acetic acid production, and methanation occur simultaneously to