The calculated sludge production for SBBGR was
0.15 kgTSS/kgCODremoved, considering also the sludge accumulated
in the reactor during the start-up period. If biomass
accumulation is not taken into account (as this contribution is
practically negligible in steady-state operation) an even lower
value of 0.05 kgTSS/kgCODremoved is achieved.