Experiment No. 7 Solar Reactor: IA Date: 13 Aug. 1986 Sky conditions: clear hazy partly cloudy x cloudy Contaminant added: sewage (%) 0.2 bacterial culture Bacteria tested: Coliforms Culture medium: Desoxychol, Lactose Agar Manufacturer: Difco Laboratories Incubation: temperature 35.5 (°C) period 24 (h) | ||||||||||
Time of day | 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 | ||||||
1015 | 32.0 | 34.0 | 33.0 | 11.23 | 26 | 11.23 | 4.87 | 2 150 | 445 | 20.7 |
1040 | 33.0 | 35.5 | 34.2 | 11.23 | 26 | 12.93 | 5.60 | 1 715 | 285 | 16.6 |
1100 | 34.0 | 36.0 | 35.0 | 11.23 | 26 | 15.55 | 6.74 | 1 740 | 80 | 4.6 |
1130 | 34.0 | 36.5 | 35.2 | 11.23 | 26 | 17.80 | 7.71 | 1 020 | 135 | 13.2 |
1200 | 35.0 | 37.0 | 36.0 | 11.23 | 26 | 19.35 | 8.39 | 280 | 40 | 14.3 |
1230 | 36.0 | 37.5 | 36.8 | 11.23 | 26 | 19.55 | 8.47 | 340 | 40 | 11.8 |
1300 | 37.0 | 39.0 | 38.0 | 11.23 | 26 | 19.55 | 8.47 | 65 | 6 | 9.2 |
Mean +/- SDa | 34.4 | 36.5 | 35.5 | 11.23 | 26 | 16.57 | 7.20 | 1 045 | 147 | 12.9 |
+/-l.7 | +/-l.6 | +/-l.7 | +/-0.00 | +/-0 | +/-3.40 | +/-l.50 | +/-835 | +/-l60 | +/-8.2 | |