|
Appendix 9. Summary of experimental mean values for solar inactivation
of Escherichia coli in contaminated water using solar reactor
IA (reactor IB was used for experiments 25 and 26). | |||||||||||
| Exp. No. | Date (1986) | Water temperature (°C) | Flow rate (L/h) | Solar UV-A | Bacterial counts (CFU/mL) | Bacterial survival (%) | |||||
| Exposure time (min) | Intensity (W/m2) | Fluence (W h/m2) | |||||||||
| Influent | Effluent | Mean | Influent | Effluent | |||||||
| 16 | 30 Sept. | 35.9 | 39.4 | 37.7 | 10.2 | 29 | 14.9 | 7.3 | 2 710 | 115 | 5.0 |
| 18 | 15 Oct. | 30.4 | 34.8 | 32.6 | 18.6 | 16 | 12.5 | 3.3 | 4 340 | 2 230 | 32.7 |
| 19 | 21 Oct. | 32.1 | 36.6 | 34.4 | 4.3 | 68 | 13.5 | 15.3 | 4 420 | 10 | 0.2 |
| 20 | 28 Oct. | 32.6 | 37.1 | 34.8 | 11.4 | 25 | 12.4 | 5.2 | 5 720 | 2 110 | 17.6 |
| 25 | 3 Dec. | 22.4 | 25.9 | 24.1 | 10.7 | 29 | 14.1 | 6.8 | 3 450 | 820 | 16.2 |
| 26 | 9 Dec. | 23.0 | 25.2 | 23.7 | 6.6 | 47 | 10.2 | 8.0 | 3 670 | 500 | 14.2 |