Investigation of a sewage-integrated technology combining an expanded granular sludge bed (EGSB) and an electrochemical reactor in a pilot-scale plant

- Combining an expanded granular sludge bed and an electrochemical reactor.
- Soluble organic matters were removed by an expanded granular sludge bed.
- Iron shavings were added to decrease the COD concentration.
- NH3-N was oxidized to N2, resulting in no secondary pollution.