Table 1 Operative conditions [filling ratio, hydraulic retention time (HRT) and temperature] in the different phases and cycles checked in the main research. The average and standard deviation (SD) of the temperature data are shown with the homogenous subsets (indicated by lower case letters) of Tukey’s honest significant difference (HSD) of the analysis of variance (ANOVA) test undertaken
Phase | Cycle | Filling ratio (%) | HRT (h) | Temperature (°C; average ± SD) |
|---|---|---|---|---|
I | 1 | 20 | 24 | 7.60 ± 2.88 a |
2 | 20 | 10 | 4.60 ± 2.61 a | |
II | 3 | 35 | 24 | 17.03 ± 0.55 b |
4 | 35 | 10 | 15.67 ± 1.53 b | |
III | 5 | 50 | 24 | 5.03 ± 3.05 a |
6 | 50 | 10 | 2.50 ± 1.5 a |