The performance of the reactor was really good for all the
analysed parameters. COD and TSS concentrations in the
effluent from SBBGR were, on average, 42 9 mg/l and
4 2 mg/l, respectively, always far below the Italian limits for
discharge (125 mg/l and 35 mg/l, respectively), and high percentages
of removal were achieved. These results are particularly
interesting if considering that the biological stage of
centralized plants treating wastewater with high textile