Table 2.
Statistical summary for the biodegradability and the selected fluorescence indices for the effluent samples in this study (n = 18).
| Mean | SD | Range | |
|---|---|---|---|
| Ratio of biodegradability | |||
| BOD/COD | 0.21 | (0.14) * | 0.03–0.54 |
| CBOD/COD | 0.12 | (0.06) | 0.03–0.27 |
| BTOC/TOC | 0.24 | (0.12) | 0.06–0.44 |
| BDOC/DOC | 0.18 | (0.06) | 0.09–0.33 |
| Fluorescence indices | |||
| Index I | 344.51 | (90.62) | 225.89–520.11 |
| Index II | 8.42 | (2.32) | 5.01–12.91 |
| Index III | 0.20 | (0.06) | 0.13–0.31 |
| Index IV | 16.87 | (4.41) | 9.67–30.41 |
| Index V | 0.48 | (0.11) | 0.30–0.64 |
*
The numbers in the parentheses represent standard deviation.