As can be seen, the quality of the effluent after SBBGR
treatment was much better than the one after the biological
compartment of the full scale WWTP. Except for colour,
SBBGR assured the attainment of effluent concentrations
similar (COD, TKN, NHþ
4 ) or even better (TSS, NOx) than the
ones of the final effluent after coagulationeflocculation-clarification
and ozonation