Even
when the same cycle duration as in this paper was tested (6e8 h),
lower OLRs (in the range 0.19e0.29 kgCOD m3 d1 with 8-h cycles
and 0.14e0.57 kgCOD m3 d1 with 6-h cycles, that is to say 5e10
times lower than the ones applied in this study) and higher HRTs
(around 48 h) were adopted (Vives et al., 2003).