Question

What happens when activated sludge is pumped into aerobic digester?

Answer 1

• Aerobic digestion is an extension of the activated sludge aeration process whereby the waste from primary and secondary treatment is continually aerated for long periods of time.
• In aerobic digestion, the microorganisms extend into the endogenous respiration phase, which is a phase where materials previously stored by the cell are oxidized, with a reduction in the biologically degradable organic matter.
• The organic matter, from the sludge is oxidized to carbon dioxide, water and ammonia. The ammonia is further converted to nitrates as the digestion process proceeds.