The experimental system was composed of four anaerobic/aerobic
SBR with cycles consisting of five discrete sequential
phases, namely fill, reaction, settle, drain and idle. FSBR1 and FSBR2
(1.0-L working volume) were inoculated with activated sludge
flocs harvested from a full-scale, conventional municipal WWTP
(Chelas, Lisboa, Portugal). GSBR1 and GSBR2 (1.5-L working volume)
were inoculated with aerobic granules harvested from the
Nereda® demonstration SBR at the Frielas WWTP (Portugal).