Biological nitrogen removal from landfill leachate using anaerobic-aerobic process: Denitritation via organics in raw leachate and intracellular storage polymers of microorganisms

- Advanced nitrogen removal of leachate was achieved without carbon source addition.
- Pulsed SBR took full advantage of organics in raw leachate for denitritation.
- PHB and glycogen were used as electron donor orderly for endogenous denitritation.
- A hypothesis showed that DNGAOs were responsible for endogenous denitritation.
- Endogenous DNR changed with type alteration of internal carbon source used.